Audio audacity


Audacity (audio editor) - Wikipedia

Audacity Developer(s) Initial release Stable release Preview release Repository Development status Written in Operating system Platform Size Available in Type License Website

Audacity 2.1.3

The Audacity Team
May 28, 2000; 17 years ago (2000-05-28)
2.1.3 (17 March 2017; 6 months ago (2017-03-17)[1]) [±]
2.2.0 beta (September 1, 2017; 48 days ago (2017-09-01)[2]) [±]
github.com/audacity/audacity
Active
C, C++ (using the wxWidgets toolkit)[3][4]
Windows, macOS/OS X, Linux, Unix[5][6]
IA-32, x86-64, PowerPC
64.8 MB: Windows66.9 MB: macOS/OS Xincludes downloaded Manual

36 languages

  • Afrikaans, Arabic, Basque, Bulgarian, Catalan, Chinese (simplified), Chinese (traditional), Czech, Danish, Dutch, English, Finnish, French, Galician, German, Greek, Hungarian, Irish, Italian, Japanese, Lithuanian, Macedonian, Norwegian (Bokmål), Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Hungarian, Swedish, Turkish, Ukrainian, Vietnamese and Welsh
Digital audio editor
GNU GPLv2+[7]
www.audacityteam.org

Audacity is a free open source digital audio editor and recording computer software application, available for Windows, OS X, Linux and other operating systems.[5][6] Audacity was started in the fall of 1999 by Dominic Mazzoni and Roger Dannenberg at Carnegie Mellon University and was released on May 28, 2000 as version 0.8.[8][9]

As of October 10, 2011, it was the 11th most popular download from SourceForge, with 76.5 million downloads.[10] Audacity won the SourceForge 2007 and 2009 Community Choice Award for Best Project for Multimedia.[11][12] In March 2015 hosting was moved to FossHub[13] and by March 20, 2017 it had exceeded 35.6 million downloads there.

Features and usage[edit]

Audacity's main panel annotated. All the components that have been labelled are custom for Audacity.[14]

In addition to recording audio from multiple sources, Audacity can be used for post-processing of all types of audio, including podcasts by adding effects such as normalization, trimming, and fading in and out.[15] Audacity has also been used to record and mix entire albums, such as by Tune-Yards.[16] It is also currently used in the UK OCR National Level 2 ICT course for the sound creation unit.

Software architecture of Audacity: The layers and modules in Audacity. The diagram highlights three important classes within wxWidgets, each of which has a reflection in Audacity. Higher-level abstractions result from related lower-level ones. For example, the BlockFile system is a reflection of and is built on wxWidgets' wxFiles. Lower down in the diagram is a narrow strip for "Platform Specific Implementation Layers." Both wxWidgets and PortAudio are OS abstraction layers. Both contain conditional code that chooses between different implementations depending on the target platform.[14]

Audacity's features include:

  • Recording and playing back sounds[17]
    • Scrubbing (Version 2.1.1 and later)[18]
    • Timer Record [19] enables the user to schedule when a recording begins and ends to make an unattended recording.
  • Editing via cut, copy, and paste, with unlimited levels of undo[20]
  • Importing and exporting of WAV, AIFF, MP3 (via the LAME encoder, downloaded separately), Ogg Vorbis, and all file formats supported by libsndfile library. Versions 1.3.2 and later supported Free Lossless Audio Codec (FLAC).[21] Version 1.3.6 and later also supported additional formats such as WMA, AAC, AMR and AC3 via the optional FFmpeg library.[22]
  • Conversion of cassette tapes or records into digital tracks by splitting the audio source into multiple tracks based on silences in the source material[23]
  • Multitrack mixing[24]
  • A large array of digital effects and plug-ins.[25] Additional effects can be written with Nyquist, a Lisp dialect.[26]
  • Built-in LADSPA, VST(32-bit) and Nyquist plug-in support[27]
  • Amplitude envelope editing[28]
  • Noise Reduction based on sampling the noise to be minimized.[29]
  • Vocal Reduction and Isolation for the creation of karaoke tracks and isolated vocal tracks.[30]
  • Audio spectrum analysis using the Fourier transform algorithm[31][32]
  • Support for multi-channel modes with sampling rates up to 96 kHz with 32 bits per sample[33]
  • Precise adjustments to the audio speed (tempo) while maintaining pitch in order to synchronize it with video or run for a predetermined length of time[34]
  • Adjusting audio pitch while maintaining speed and adjusting audio speed while maintaining pitch[35]
  • Features of modern multitrack audio software including navigation controls, zoom and single track edit, project pane and XY project navigation, non-destructive and destructive effect processing, audio file manipulation (cut, copy, paste)
  • Cross-platform operation — Audacity works on Windows, macOS/OS X, and Unix-like systems (including Linux and BSD)[36]
  • Audacity uses the wxWidgets software library to provide a similar graphical user interface on several different operating systems.[37]
  • LADSPA, VST (32-bit) and Audio Unit (macOS/OS X]) effects now support real-time preview (from version 2.1.0 onwards). Note: Real-time preview does not yet support latency compensation.[38]
  • Saving and loading of user presets for effect settings across sessions (from 2.1.0 onwards).[39]
  • A full downloadable Manual[40](or available online without downloading).

Audacity supports the LV2 open standard for plugins and can therefore load software like Calf Studio Gear.[41]

Limitations[edit]

Audacity supports only 32-bit or 64-bit VST audio effect plug-ins, depending on which architecture it was built for, but not both at the same time. It does not support instrument VST (VSTi) plugins.[42]

Audacity lacks dynamic equalizer controls and real time effects while recording.

MIDI files can only be displayed.[43]

Audacity does not natively import or export WMA, AAC, AC3 or most other proprietary or restricted file formats; rather, an optional FFmpeg library is required.[44]

There are warnings on startup when disk space is low (provided the user has not turned that warning off) and during recording the status bar shows the amount of recording time left available. If the user chooses to ignore those and runs out of disk space during editing, audio will be corrupted.[45]

Language support[edit]

In addition to English language help, the ZIP file of the downloadable Audacity software program includes help files for Afrikaans, Arabic, Basque, Bulgarian, Catalan, Chinese (simplified), Chinese (traditional), Czech, Danish, Dutch, Finnish, French, Galician, German, Greek, Hungarian, Irish, Italian, Japanese, Lithuanian, Macedonian, Norwegian (Bokmål), Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Turkish, Ukrainian, and Welsh in its user interface. A partial Bengali help file is also included.[46]

The Audacity website also provides tutorials in several languages.[47]

Reception[edit]

The free and open nature of Audacity has allowed it to become very popular in education, encouraging its developers to make the user interface easier for students and teachers.[48]

CNET rated Audacity 5/5 stars and called it "feature rich and flexible".[49] Preston Gralla of PC World said, "If you're interested in creating, editing, and mixing you'll want Audacity."[50] Jack Wallen of Tech Republic highlighted its features and ease-of-use.[51] Michael Muchmore of PC Magazine rated it 3.5/5 stars and said, "Though not as slick or powerful as programs from the likes of Adobe, Sony, and M-Audio, Audacity is surprisingly feature-full for free software."[52]

In The Art of Unix Programming, Eric S. Raymond says of Audacity "The central virtue of this program is that it has a superbly transparent and natural user interface, one that erects as few barriers between the user and the sound file as possible."[53]

Releases[edit]

Version Date[54]
2.1.3 17 March 2017
2.1.2 20 January 2016
2.1.1 15 July 2015
2.1.0 29 March 2015
2.0.6 29 September 2014
2.0.5 21 October 2013
2.0.4 6 September 2013
2.0.3 21 January 2013
2.0.2 24 August 2012
2.0.1 29 June 2012
2.0.0 13 March 2012
1.3.14 11 December 2011
1.3.13 11 April 2011
1.3.12 1 April 2010
1.3.11 18 January 2010
1.3.10 1 December 2009
1.3.9 1 September 2009
1.3.8 17 July 2009
1.3.7 28 January 2009
1.3.6 24 October 2008
1.3.5 8 May 2008
1.3.4 13 November 2007
1.3.3 18 May 2007
1.3.2 30 October 2006
1.3.1 26 September 2006[55]
1.3.0 28 November 2005[56]
1.2.5 30 October 2006[56]
1.2.4 28 November 2005[56]
1.2.3 19 November 2004[56]
1.2.2 26 August 2004[57]
1.2.1 9 May 2004[58]
1.2.0 3 March 2004[58]
1.1.3 21 March 2003[58]
1.1.1 21 November 2002[58]
1.1 11 June 2002[58]
1.0 11 June 2002[58]
0.98 25 March 2002[58]
0.97 10 October 2001[58]
0.96 29 July 2001[58]
0.95 26 April 2001[58]
0.94 10 February 2001[58]
0.93 4 December 2000[58] - Recording Added
0.91 4 October 2000[58] - First Version Available For Download
0.8 28 May 2000

Compatibility[edit]

List of Audacity versions, the operating systems on which they run, and the version's release date Audacity version Operating system (OS) Minimum OS version Audacity release date
2.1.3 Windows(Client versions) XP with SSE2 CPU 17 March 2017
2.0.6 2000 29 September 2014
2.0.0 98 and ME 13 March 2012
2.1.2 OS X 10.6 20 January 2016
2.1.1 10.5 (Universal) 15 July 2015
2.0.6 10.4 (Universal) 29 September 2014
1.2.6a 10.0 30 October 2006
1.0.0 Classic Mac OS Mac OS 9 11 June 2002
This section needs expansion. You can help by adding to it. (January 2017)

See also[edit]

Literature[edit]

James Crook, Amy Brown, Greg Wilson - The Architecture of Open Source Applications - Chapter 2 Audacity, released 2012 under CC BY 3.0 (Open access).[14]

References[edit]

  1. ^ "Release Notes 2.1.3". Audacity Wiki. 2017-03-17. Retrieved 2017-03-17. 
  2. ^ Audacity. "Audacity for Windows Nightly Builds". gaclrecords.org.uk. Audacity. 
  3. ^ SourceForge (July 2004). "Project of the Month July 2004 - Audacity". Archived from the original on 23 December 2008. Retrieved 2008-11-27. 
  4. ^ United Nations Conference on Trade and Development (2004). "E-Commerce and Development Report 2004" (PDF). Archived (PDF) from the original on 3 December 2008. Retrieved 2008-11-27. 
  5. ^ a b "Audacity: Free Audio Editor and Recorder". audacityteam.org. Retrieved 5 January 2012. 
  6. ^ a b "About Audacity". audacityteam.org. Retrieved 2012-02-19. 
  7. ^ Audacity Team. "License, and Advice for Vendors and Distributors". Archived from the original on June 20, 2015. Retrieved 2010-02-23. 
  8. ^ "Version 0.8: May 28, 2000" in README.txt of audacity-win-0.8.zip
  9. ^ "Credits". audacityteam.org. Retrieved 2012-02-19. 
  10. ^ "SourceForge.net: All-Time Top Downloads". Archived from the original on 12 November 2010. Retrieved 29 October 2010. 
  11. ^ "SourceForge.net: 2007 Community Choice Awards". Archived from the original on 20 January 2008. Retrieved 2008-01-19. 
  12. ^ "SourceForge.net: 2009 Community Choice Awards". Retrieved 2012-02-04. 
  13. ^ FossHub.com. "Download Audacity". 
  14. ^ a b c James Crook (March 15, 2012). "Chapter 2. Audacity". The Architecture of Open Source Applications. Amy Brown, Greg Wilson. ISBN 978-1257638017. 
  15. ^ "Podcasting with Linux Command Line Tools and Audacity". Archived from the original on 18 January 2008. Retrieved 2008-01-19. 
  16. ^ Frere-Jones, Sasha (May 2, 2011). "World of Wonder: How Merrill Garbus left the theatre and took the stage." The New Yorker. Retrieved 2015-05-16.
  17. ^ "Playing and Recording". Audacityteam.org. 
  18. ^ "Scrubbing and Seeking". Audacityteam.org. Archived from the original on 2016-03-08. 
  19. ^ "Timer Record". Audacityteam.org. 
  20. ^ "Edit commands in Audacity". Audacityteam.org. 
  21. ^ Audacity development team (2006-10-30). "Audacity 1.3.2 a 1.2.5 released". Retrieved 2010-01-19. 
  22. ^ "Importing Audio". Audacityteam.org. 
  23. ^ "Copying tapes, LPs or MiniDiscs to CD". Audacityteam.org. 
  24. ^ "Audacity Tracks Menu". Audacityteam.org. Archived from the original on 2016-03-04. 
  25. ^ "Index of Effects, Generators and Analyzers in Audacity". Audacityteam.org. 
  26. ^ "Nyquist Plug-ins Reference". Audacityteam.org. 
  27. ^ Audacity development team . "Audacity: Plug-ins and Libraries". 
  28. ^ "Audacity's Envelope Tool". Audacityteam.org. 
  29. ^ "Noise Reduction". Audacityteam.org. 
  30. ^ "Vocal Reduction and Isolation". Audacityteam.org. 
  31. ^ "Plot Spectrum". Audacityteam.org. 
  32. ^ "Audacity's Spectrogram View". Audacityteam.org. 
  33. ^ "Multichannel Recording". Audacityteam.org. 
  34. ^ "Change Tempo". Audacityteam.org. 
  35. ^ "Change Pitch". Audacityteam.org. 
  36. ^ "Cross-platform downloads for Audacity". Audacityteam.org. 
  37. ^ "wxWidgets Cross-platform GUI Library". Audacityteam.org. 
  38. ^ "Real-time preview of effects". Audacityteam.org. 
  39. ^ "Manage Effects, Generators and Analyzers". Audacityteam.org. 
  40. ^ "Audacity Manual". Audacityteam.org. 
  41. ^ "Calf Studio Gear supports LV2". 
  42. ^ "FAQ:How do I install VST plug-ins? - Audacity Manual". Audacityteam.org. Retrieved 2013-08-09. 
  43. ^ "FAQ Why can’t I play MIDI files?". Audacityteam.org. Retrieved 2009-12-16. 
  44. ^ "Audacity: Features". audacityteam.org. 2013-03-22. Retrieved 2013-09-08. 
  45. ^ "Release Notes 2.1.2 - Audacity Wiki". 
  46. ^ "Changing the current language - Audacity Wiki". Wiki.audacityteam.org. 2013-01-04. Retrieved 2013-09-08. 
  47. ^ "Languages page in the Audacity Manual". 
  48. ^ Jaworski, Nick; Thibeault, Matthew D. (2011). "Technology for Teaching: Audacity. Free and open-source software.". Music Educators Journal. 98 (2): 39–40. ISSN 0027-4321. doi:10.1177/0027432111428745. 
  49. ^ "Audacity". CNET. 2008-11-08. Retrieved 2013-09-01. 
  50. ^ Gralla, Preston (2008-10-22). "Audacity". PC World. Retrieved 2013-09-01. 
  51. ^ Wallen, Jack (2011-07-18). "Giving Audacity its due: An audio editor with serious functionality". Tech Republic. Retrieved 2013-09-01. 
  52. ^ Muchmore, Michael (2010-02-05). "Audacity 1.2 review". Retrieved 2013-09-01. 
  53. ^ "Studying Cases Chapter 6. Transparency". 
  54. ^ "Release Notes - Audacity Wiki". wiki.audacityteam.org. Retrieved 2016-04-06. 
  55. ^ "RPM PCLinuxOS audacity-alsa 1.3.1 i586 rpm". rpm.pbone.net. Retrieved 2016-04-07. 
  56. ^ a b c d "News | Audacity®". www.audacityteam.org. Retrieved 2016-04-07. 
  57. ^ "Audacity / News". sourceforge.net. Retrieved 2016-04-07. 
  58. ^ a b c d e f g h i j k l m "Audacity / News". sourceforge.net. Retrieved 2016-04-07. 
Notes
  • Franklin, Jerry (2006). "The Sheer Audacity: How to Get More, in Less Time, from the Audacity Digital Audio Editing Software": 92–105. doi:10.1109/IPCC.2006.320394. 
  • Mazzoni, Dominic; Dannenberg, Roger B. (2002). "A Fast Data Structure for Disk-Based Audio Editing". Computer Music Journal. 26 (2): 62–76. ISSN 0148-9267. doi:10.1162/014892602760137185. 
  • Bernardini, Nicola; Rocchesso, Davide (2002). "Making Sounds with Numbers: A Tutorial on Music Software Dedicated to Digital Audio". Journal of New Music Research. 31 (2): 141–151. ISSN 0929-8215. doi:10.1076/jnmr.31.2.141.8089. 

External links[edit]

en.wikipedia.org

Скачать Аудасити на русском языке

Если вы ищете бесплатную программу для обрезки музыки, то вам следует обратить внимание на аудиоредактор Аудасити. Audacity является бесплатной программой для обрезки и редактирования аудиозаписей.

Непосредственно кроме вырезания нужного фрагмента аудио Audacity обладает большим количеством дополнительных функций. С помощью Аудасити вы можете очистить запись от шума и выполнить ее сведение.

Урок: Как обрезать песню в Audacity

Советуем посмотреть: Другие программы для обрезки музыки

Обрезка аудио

С помощью Audacity вы сможете парой кликов вырезать из песни нужный вам фрагмент. При желании вы можете удалить ненужные отрывки или вообще поменять порядок аудиофрагментов в песне.

Запись звука

Audacity позволяет записывать звук с микрофона. Полученную аудиозапись вы можете наложить поверх песни или сохранить в исходном виде.

Очистка записи от шума

С помощью данного аудиоредактора вы можете очистить любую аудиозапись от посторонних шумов и щелчков. Достаточно применить соответствующий фильтр.

Также с помощью данной программы вы можете вырезать фрагменты аудио с тишиной.

Наложение аудиоэффектов

В программе присутствует большое количество разнообразных аудиоэффектов, например эффект эхо или электронный голос.

Вы можете добавить дополнительные эффекты от сторонних разработчиков, если вам не хватит эффектов, идущих в комплекте с программой.

Изменение высоты и темпа музыки

Вы сможете менять темп (скорость) воспроизведения аудиотрека без изменения его высоты (тона). И наоборот, вы можете повысить или понизить тон аудиозаписи, не затронув при этом скорость воспроизведения.

Многодорожечное редактирование

Программа Аудасити позволяет выполнять редактирование аудиозаписей на нескольких дорожках. Благодаря этому вы можете накладывать звук нескольких аудиозаписей друг на друга.

Поддержка большинства аудиоформатов

Программа поддерживает практически все известные аудиоформаты. Вы можете добавлять в Аудасити и сохранять аудио формата MP3, FLAC, WAV и т.п.

Достоинства Аудасити

1. Удобный, логичный интерфейс;2. Большое количество дополнительных функций;3. Программа на русском языке.

Недостатки Аудасити

1. При первом знакомстве с программой могут возникнуть трудности с тем, как выполнить то или иное действие.

Аудасити является отличным редактором аудио, способным не только вырезать нужный аудиофрагмент из песни, но и изменить его звучание. В комплекте с программой идет встроенная документация на русском, которая поможет вам разобраться с возникшими вопросами по поводу ее использования.

Скачать Аудасити бесплатно

Загрузить последнюю версию программы с официального сайта

Оцените программу:

Рейтинг: 4.75 из 5 (8 голосов)

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Audacity - бесплатный, простой и удобный в использовании аудиоредактор с множеством полезных функций и инструментов для работы с аудиофайлами популярных форматов.

Рейтинг: 4.75 из 5 (8 голосов)

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Система: Windows 7, 8, 8.1, 10, XP, Vista

Категория: Обзоры программ

Разработчик: The Audacity Team

Стоимость: Бесплатно

Размер: 25 MB

Язык: Русский

Версия: 2.1.3

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How to Remove White Noise from Audio in Audacity

Have you ever recorded a vocal track in Audacity only to notice that your recording has a ton of white noise in it? For those who are not aware, white noise is a type of noise that can drown out the main voices. It’s a common problem. Most consumer-grade microphones that are available have terrible sound pickup. This kind of thing can be quite annoying!

How do you fix it? Well, you could go out and buy a better quality microphone (which you should probably do), or you could do a quick trick to make Audacity remove all of the unwanted white noise that regularly shows up on your tracks during recording.

How to remove white noise from audio in Audacity

Removing white noise from audio tracks is a really simple process. It only really requires a few steps to accomplish. For starers, you’re gonna need to get the white noise sound alone. It needs to be isolated. Why? You’ll have a better chance of getting rid of it if you get a clear recording of it.

Accomplishing this shouldn’t be hard work. Just record some audio with Audacity and don’t say anything into your mic. Let it go for a couple of seconds (thirty at most) for best results.

Once you have your white noise recorded, select it using your mouse. Then go into the “Effect” drop-down menu and look for the “Noise Removal” option. Click this and you will be brought straight into Audacity’s noise removal feature.

Inside the noise removal window click the “Get Noise Profile” button. This will make Audacity take note of your white noise and save it temporarily.

After that just go back to Audacity and record your vocals like normal. When you’re finished with your recording, go back into the “Effect” drop-down and into “Noise Removal.”

From there, just click the “OK” button to start the removal process. Audacity will do a fairly good job of extracting the white noise from your recorded track. It’s not 100% perfect, but it does work well if you have a white noise issue you’re looking to get rid of.

Note: Don’t worry about tweaking the settings in Noise Removal as the defaults work best.

Make your audio sound even better

Here’s a quick trick to make your audio sound a little bit better. Select your entire track with “Ctrl + A,” click the “Effect” drop-down menu and click on “Normalize.” When you do that, you’ll see a little pop-up selection menu appear. Just click the OK button to start the process.

Why do this? If you record quiet audio, it’s probably a good idea to normalize your tracks. When you do it, it allows you to make the overall track louder without changing it’s dynamic range. It’s a neat little trick, and it’ll help you out a lot if you’re a frequent Audacity user.

Conclusion

White noise can be a real pain when recording, so it’s really great that it can be easily removed with the help of a simple feature within Audacity. You shouldn’t rely on this feature, though, because it’s not perfect. That being said, it has gotten me out of a lot of tight spots. I hope it’ll help you as well!

Do you know of any Audacity tricks? Let us know in the comments below!

www.maketecheasier.com

Importing Audio - Audacity Development Manual

This page is about importing audio files into Audacity (like WAV or MP3) that other applications on the computer can play.
  • If you have already saved your audio as an Audacity Project, use or to open the <my_project_name>.aup. Do not attempt to open, import or manipulate any individual AU files. See Audacity Projects for more information.

Contents

  1. Audio File Formats Supported by Audacity
  2. Sample Rate and Sample Format of imported files
  3. Four Ways to Import Audio
  4. Using the file type dropdown menu in the Open and Import Audio Dialogs
  5. Importing Uncompressed Audio Files
  6. Importing Compressed Audio Files
  7. Importing audio from CDs

Audio File Formats Supported by Audacity

The audio formats importable by Audacity as shipped are:

You can install the optional FFmpeg library to import a much larger range of audio formats including AC3, AMR(NB), M4A, MP4 and WMA (if the files are not DRM-protected to work only in particular software). FFmpeg will also import audio from most video files or DVDs that are not DRM-protected. On Mac only, Audacity can import M4A, MP4 and MOV files without FFmpeg.

  • Older uncompressed file types such as WAV with U-Law or IMA ADPCM encoding are generally supported provided they contain correctly formatted header information.
  • If files do not have header information (such as RAW or VOX ADPCM) or have non-standard header information, you can normally import them using .
  • WAV files from portable recorders may contain proprietary compressed audio. These should not be imported as Raw Data, but by installing the FFmpeg library.
  • LOF files (lists of files) are also supported if the list is correctly formatted and contains supported files.

Sample Rate and Sample Format of imported files

Audacity always imports files at their original sample rate, as displayed in the Track Information Area of the Track Control Panel.

When importing a file into an empty project window (as always happens when using as described below), the Project Rate control in Selection Toolbar changes if necessary to reflect the rate of the file. The Project Rate determines the sample rate a file will be exported at, so no further adjustment is needed to export that file at its original rate. However, once there is already an audio track of any origin in the project (either an imported file, a recording or generated audio), importing an audio file will never change the project rate.

Generally, Audacity imports files at the sample format (bit depth) specified at Default Sample Format in Quality Preferences. This setting defaults to 32-bit float. Therefore by default an imported file will show in the Track Control Panel as 32-bit float, even if its original bit depth is lower. This is best for high-quality editing. Even if you choose a lower Default Sample Format than 32-bit float, Audacity will never downconvert a file that has a higher bit depth, as shown in the following table for WAV and AIFF imports using the standard uncompressed files importer.

Resolution of imported WAV and AIFF files using standard importer
Default Sample Format File bit depth Resolution imported at
16 16 16
16 24 32
16 32 32
24 16 24
24 24 32
24 32 32
32 (default) 16 32
32 (default) 24 32
32 (default) 32 32

OGG is unusual in that it will always import at 16-bit resolution using the standard OGG Vorbis importer, irrespective of Default Sample Format. This is due to the design of the OGG codec. However OGG can be imported at 32-bit resolution using FFmpeg, as described at Using the file type dropdown menu.

Four Ways to Import Audio

No matter which method you use to bring an audio file into Audacity, the file is always imported into a saved or unsaved Audacity project. The imported file always appears in a new track in that project.

1.

If you select the command, then choose one or more audio files, Audacity will import the selected file(s) into the existing project. This is useful to bring the content of one or more audio files into a project that already contains audio (for example, to mix several audio files together).

2.

This command behaves differently according to whether the project window in which you use the Open command has ever contained tracks of any type.

  • If the project contains or has ever contained tracks at some point in its history (so that and are not empty), Open imports each file you select into its own new project window. For example, selecting three files would create three new project windows, each containing one of the files and each a separate project with its own history. This is handy if you want to apply different actions to different (or even the same) files and easily compare the results of each.
  • If the project is empty and has never contained any tracks (for example, you used to create a new, empty project or used to close an existing project), Open imports the first file into the empty project window, then imports each subsequent file into its own new project window.
As with the other three import methods, Open does not directly open your selected file(s). The imported audio data is converted into a large number of small files in AU audio format, preserving the current quality of the data. Conversion occurs even if you never explicitly save your work as an Audacity project.

So to save your edits to an audio file for the computer you always have to choose an Export command from the File Menu, even if you want to overwrite the exact same file that you imported.

3. (Open Recent on Mac)

This command imports a single file from a list of the 12 most recently imported files or recently saved projects. The file opens in a new window exactly as .

4. Drag and drop

  • On Windows and Mac
    • Drag and drop one or more audio files into an open Audacity project window: this is equivalent to .
    • Drag and drop one or more audio files onto the Audacity icon: this is equivalent to .
  • On Linux:
    • Drag and drop files into an open Audacity Project window: this is equivalent to .
    • Drag and drop one or more audio files onto the Audacity icon: only the first file will open. More than one file dragged and dropped onto the icon will do the same as the command for the first file, but the other files will generate an error message saying that Audacity is already running.

Using the file type dropdown menu in the Open and Import Audio Dialogs

This menu (called "Format" on Mac) contains a list of different file types.

Choosing a particular file type in the menu performs two functions.

  • The file type choice filters the list of files in the window by restricting it to files of that type.
  • The file type choice determines which importer attempts the file first when using the Open or Import Audio dialogs. For example, a WAV file could be imported by Audacity's native WAV importer or by the optional FFmpeg library if this was installed.

Additionally, rules for the order in which different importers attempt files of particular types can be created at Extended Import Preferences with an option to over-ride the Open and Import Audio file type choice. See Import Filtering and Importer Order for more details.

Importing Uncompressed Audio Files

The two most common uncompressed file types you will encounter are WAV and AIFF.

Warning Dialog when Importing Uncompressed Audio Files

The first time you import an uncompressed audio file into Audacity, you will see this dialog.

For each imported file, you can choose:

  • Whether to copy the imported file's data into the project or to read its data directly from the file, as described below.
  • Whether to make your copy or read directly choice permanent and never show this warning again.

Import Methods

  • Make a copy before editing (safer)
    • This is the default setting. When this option is chosen, Audacity copies the imported file(s) into the project's audio data. It is essential that files are copied into the project if the Audacity project is to be moved, opened on another computer or sent to someone else, or if you need to to move, rename or delete the original files.
    • This option does not make a backup copy of the original file in its original location. If you do not want to lose the original content of the file when exporting to the same file name and location, please change the file name when exporting.
  • Read directly from the original (faster)
    • When this option is chosen Audacity always reads imported files from the folder you first imported them from, without copying them into the project. Therefore with this option set, you must not move, rename or delete imported uncompressed files, or the folder they are in. The advantage of this option is that you can begin editing a long file almost immediately, since On-Demand Loading will be used to import the file.
    • If you export to the same file name and location as the original file, Audacity will make a copy of the original file's content (renamed to include "-old" and a number) and will then read the project from this "-old" file. Therefore you must not move, rename or delete any "-old" files until you have completely finished working on the project.

Dependencies

If you import any uncompressed audio files into your project using the "read directly" option, then your project depends on those files remaining available. At any time you can check which files your project depends on by clicking on . See the Dependencies Dialog page for details.

When you save a project you can choose whether or not to copy dependent files into the project. See the Projects Preferences page for details.

Importing Compressed Audio Files

When you import a compressed audio file into your project such as MP2, MP3, Ogg Vorbis or FLAC, there is usually no choice between "safer" and "faster" - the file's data is always copied into the project.

By default on Linux, the lossless FLAC compressed format is imported by the Audacity importer for uncompressed files. Therefore the warning for "Importing uncompressed audio files" will appear with the choice to copy in the audio or read it directly, the latter choice permitting quicker On-Demand Loading.

Importing audio from CDs

Audacity does not contain any function for importing (ripping) audio from CDs. This can, however, be achieved by using other applications to extract the data into a file format Audacity does support.

See the tutorial How to import CDs.

manual.audacityteam.org

Как объединить или разделить аудио файлы с помощью Audacity?

Обещал, что напишу небольшую статью по работе в звуковом редакторе Audacity. Сделал. Данный редактор является одним из лучших профессиональных инструментов для редактирования. Сама программа бесплатная подходит для Windows. О ней я писал в этой статье, что-то типа обзора.

Для людей, которые не представляют, как работать с Audacity я пишу вот эту небольшую статью. Я покажу, как разделять и объединять аудио с помощью Audacity. Погнали!

Как разделить или объединить аудио файлы в Audacity?

Это интересно: Что же такое Lossless формат?

Если у вас есть любимый музыкальный файл, момент которого вы хотите поставить на звонок, то вы можете разделить песню с помощью Audacity. Возможно, вы занимаетесь и более профессиональной деятельность, но и в этом случае программа подойдет.

Разделение аудио файлов

Скачать Audacity можно с официального сайта. Запустите программу и просто перекиньте какой-то музыкальный файл в предоставленное окно.

Далее найдите на панели задач программы инструмент, который называется «Selection Tool» (Инструмент выделения), он выглядит, как большая английская I. Нажмите на него.

Далее выделите какую-то часть аудиофайла, которую нужно разделить. Вы можете делать столько частей, сколько хотите. Итак, вы выделили фрагмент, чтобы его разделить вы можете нажать клавиши Ctrl+I, либо перейти на вкладку «Правка», меню «Clip Boundaries» и пункт «Разделить».

Чтобы сохранить разделённый фрагмент вам нужно нажать на вкладку «Файл» потом «Экспорт аудио». Выбрать формат аудиофайла и сохранить.

Объединение аудио файлов

Тут также всё просто. Нужно выбрать два аудио файла и поместить их на разные дорожки. Далее вам нужно чтобы они, как бы, соприкасались, для этого нужно использовать инструмент «Time Shift Tool» (Сдвиг во времени). Сделайте так, как на скриншоте ниже. Получается, что начало первой дорожки соприкасается с концом второй. Можно сделать и наоборот.

Чтобы объединить аудио файлы нужно нажать «Файл» и выбрать пункт «Экспорт выделенного аудио». Выбрать нужный тип файла и дать ему имя.

Вот и всё. Надеюсь это небольшое руководство показало, что работать с Audacity не так уж и сложно. Теперь вы научились разделять и объединять аудиофайлы.

http://computerinfo.ru/obedinit-ili-razdelit-audio-v-audacity/http://computerinfo.ru/wp-content/uploads/2017/01/obedinit-ili-razdelit-audio-v-audacity-5-700x438.pnghttp://computerinfo.ru/wp-content/uploads/2017/01/obedinit-ili-razdelit-audio-v-audacity-5-150x150.png2017-01-04T19:16:57+00:00EvilSin225Софтaudacity,объединить аудио,объединить или разделить аудио,разделить аудиоОбещал, что напишу небольшую статью по работе в звуковом редакторе Audacity. Сделал. Данный редактор является одним из лучших профессиональных инструментов для редактирования. Сама программа бесплатная подходит для Windows. О ней я писал в этой статье, что-то типа обзора. Для людей, которые не представляют, как работать с Audacity я пишу вот...EvilSin225Андрей Терехов[email protected]Компьютерные технологии

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computerinfo.ru

Простой способ генерации сигналов разной формы в аудио редакторе Audacity

Если у Вас появилась какая-то задумка и для нее вам требуется сгенерировать сигнал заданной формы и частоты либо один из видов шума, то одним из самых простых и быстрых способов для решения этой проблемы может стать использование бесплатного мультиплатформенного аудио редактора Audacity.

Данный аудио редактор имеет очень широкие возможности, и с лихвой удовлетворит запросы подавляющего числа пользователей в плане обработки аудиофайлов. Ну и конечно же тот факт что программа абсолютна бесплатна и работает как в Microsoft Windows так и в Linux и даже на Mac OS X не может не радовать. По этой причине она и предлагается для использования.

Так выглядит окно программы после открытия.

Audacity позволяет генерировать основные формы сигналов, типы шумов и пакеты сигналов.

Варианты генераций сигналов спрятались в пункте меню Создание

Три самых нижних строки в данной статье рассматриваться не будут, т.к. отвечают за создание щелчков метронома и звуков ударов по барабану. Там тоже есть свои интересности и можно получить разнообразные звуки. Но об этом в другой раз, а пока займемся рассмотрением основных типов генерации.

Silence или Создать тишину

Не сказать что это можно назвать генерацией сигнала, т.к. это генерация отсутствия сигнала. Создается пустая аудио дорожка выбранной длительности. Если выделить часть дорожки то длительность кусочка будет автоматически вписана.

Это удобно при обработке реальных записей, когда нужно заглушить какой-то кусочек. В панели инструментов есть даже специальная кнопочка для быстрого доступа к этой функции. При ее нажатии окошко не вылезет, а выделенный кусочек будет сразу заглушен.

Кнопочка левее позволяет произвести обратное, т.е. оставить только выделенный кусочек и удалить то, что вокруг.

Tone…

Кнопочка открывающая меню генерации тональных сигналов — т.е. сигналов, частота, форма и амплитуда которых постоянна на протяжении всей их длительности.

Вверху располагается выпадающий список, с предложением выбрать форму сигнала. Среди распространенных вариантов не хватает только треугольной формы.

Частота задается в поле Frequency(Hz) и может лежать в интервале от 1 до 22050 Герц. Поддерживаются и дробные значения. Как и следует из названия, в поле Amplitude задается амплитуда, т.е размах сигнала. Ну а поле Длительность итак уже знакомо.

Стоит отметить, что меандра (квадратичной волны) есть аж два типа — один обычный, второй необычный без сглаживания. При этом меандр без сглаживания куда более сглажен и менее похож на меандр, чем обычный. Видимо ошибки перевода.

На картинке все четыре доступные формы волны, сгенерированные для частоты 1кГц и амплитуды = 1

Chirp…

Так же есть возможность создания сигналов частота и/или амплитуда которых непрерывно меняется на протяжении всей их длительности.

Окошек для ввода тут немного больше, но они все нам уже итак знакомы, за исключением Интерполяции. Доступны два варианты интерполяции — линейная и логарифмическая. Интерполяция определяет то, как будет меняться частота со временем. Для параметров, заданных на картинке, в зависимости от выбранного типа интерполяции,  будут сгенерированы следующие сигналы:

DTMF Tones…

Аббревиатура расшифровывается как Dual-Tone Multi-Frequency что на русский можно перевести как двух-тональные множественные сигналы.

Генерируются сигналы, аналогичные тем, которые звучат при нажатии кнопок клавиатуры на телефонах. В поле Последовательность нужно ввести то, для чего мы хотим создать подобные сигналы. А ползунок Соотношения сигнала/тишины определяет длительности сигналов и пауз. В случае 50% длительность сигнала равна длительности паузы.

Для введенных параметров будет сгенерированы 9 двух-тональных сигналов:

Noise…

Audacity так же позволяет генерировать и шум.

В список имеющихся типов шумов входят: Белый, Розовый и Броуновский(Brownian).

Шумы это отдельная интересная тема. Если вкратце, то Белый шум — это вид шума, имеющий одинаковую интенсивность на всех частотах. Благодаря этому он лучше остальных маскирует любые другие звуки. Розовый шум и броуновский шум имеют зависимость распределения энергии от частоты. На низких частотах интенсивность больше, а с ростом частоты она падает.

Вот такими солидными возможностями располагает аудио редактор Audacity в плане генерации различных сигналов. Можно сгенерировать практически любой звук. Если вам и этого мало, не беда, можно покопаться в плагинах, которых ооочень много и там вы обязательно найдете то, что нужно именно Вам.

Удачи!

audiogeek.ru

Exporting Audio - Audacity Development Manual

You must use one of the Export commands to make an audio file for playing on your music player, burning CDs or for use in other applications. Saving an Audacity project only makes a text file that tells Audacity how to work with the audio you see in Audacity itself.

Export Commands

There are two Export commands for exporting a single audio file. These let you export either the whole project or a selected part of it.

  • exports all the audio tracks in the project. By default, multiple mono tracks are mixed down to a mono file, but if you pan any mono tracks to left or right or if there are any stereo tracks, the tracks are mixed to a stereo file. See Mixing for details.
  • exports only the selected audio, mixing it down as above.

Alternatively, you may export multiple audio files in a single process. This is useful when making a long recording or group of recordings that you want to export as separate songs. Selected tracks or regions are ignored when exporting multiple.

  • exports multiple files in one process, one file for each audio track, or one file for each labeled area in a track.
  • Use prior to export to add labels so as to split a long Audacity track into separate song tracks.
    • If there are multiple audio tracks, exporting multiple files split on labels will export a mix of the tracks for each labeled area.

For either Export Audio, Export Selected Audio or Export Multiple, tracks on which the Mute button is pressed are not exported. There will be a warning if you export with all audio tracks muted.

The identical Export File or Export Selection dialogs enable you to select the file name, folder location, audio format (such as WAV or MP3) and any options for that format (such as file size compression or bit depth).

  1. Choose your folder location.
  2. Type the name of your audio file in the File name box.
    Help with choosing the file name:
    • Avoid periods (dots) in the file name, or you will have to add the extension such as .wav or .mp3 at the end of the name.
    • Some characters cannot be used on all operating systems or for email or internet use. Use A to Z or a to z characters, whole numbers (0 to 9) and underscores ( _ ) for maximum compatibility.
  3. Choose your file type (export format) from the Save as type dropdown.
  4. Press the Options... button.to check if the format has additional settings that control its quality.
  5. Press Save to export the audio.

The Export Multiple dialog has extra choices for whether exported files are split based on labels or audio tracks and whether numerical prefixes or suffixes are added to the name.

  1. Choose your export format from the dropdown (press the Options... button.to check if the format has additional settings that control its quality).
  2. Choose the export location - either over-type in the text box (use Create... to create the directory named in the box if needed) or browse for the folder to export to using Choose....
  3. Select whether splits are based on labels or tracks using the radio buttons in the Split files based on: box.
    • If exporting based on labels, put a check mark in  Include audio before first label and choose a file name if you require an exported file for any audio to left of the first label.
  4. Select a numbering scheme for file names (none, numbering before or numbering after) using the radio buttons in the Name files: box.
    Some characters cannot be used on all operating systems or for email or internet use.

    When typing a folder name or file name (including Audacity track names, names in labels or the Export Multiple "file name" boxes) use A to Z or a to z characters, whole numbers (0 to 9) and underscores ( _ ) for maximum compatibility.

  5. Use  Overwrite existing files to enable overwriting of existing files with the same name if desired.
  6. Click on Export to export the audio.

Export Formats

There are a number of audio formats that Audacity, as shipped, can export to. Other formats can be added by installing extra software libraries.

manual.audacityteam.org


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