Prototypology/Transcodology-2 - Revision history

Manetta at 13:10, 10 September 2025

2025-09-10T13:10:09Z

← Older revision		Revision as of 15:10, 10 September 2025
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	= How to compress audio? =		= How to compress audio? =

	<onlyinclude>		<onlyinclude>
	=== Why compressing audio? ===		=== Why compressing audio? ===

Manetta at 13:09, 10 September 2025

2025-09-10T13:09:01Z

← Older revision		Revision as of 15:09, 10 September 2025
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	= How to compress audio? =		= How to compress audio? =
	<~~includeonly~~>		<onlyinclude>
	=== Why compressing audio? ===		=== Why compressing audio? ===

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	* [https://en.wikipedia.org/wiki/Compression_artifact#Audio Audio compression artifacts]		* [https://en.wikipedia.org/wiki/Compression_artifact#Audio Audio compression artifacts]
	* [http://computationalculture.net/reflections-on-the-mp3-format/ Interview with Jonathan Sterne]		* [http://computationalculture.net/reflections-on-the-mp3-format/ Interview with Jonathan Sterne]
	</~~includeonly~~>		</onlyinclude>

Manetta at 13:08, 10 September 2025

2025-09-10T13:08:49Z

← Older revision		Revision as of 15:08, 10 September 2025
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	= How to compress audio? =		= How to compress audio? =
	== Why compressing audio? ==		<includeonly>
			=== Why compressing audio? ===

	* Which formats can be used on a web page?		* Which formats can be used on a web page?
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	** [https://caniuse.com/?search=opus opus]		** [https://caniuse.com/?search=opus opus]

	== The fancy and hard way ==		=== The fancy and hard way ===
	Uses FFmpeg. FFmpeg is a powerful, open-source tool for decoding, encoding, and manipulating multimedia files.		Uses FFmpeg. FFmpeg is a powerful, open-source tool for decoding, encoding, and manipulating multimedia files.
	<pre>		<pre>
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	** opus https://opus-codec.org/		** opus https://opus-codec.org/

	== The easy way ==		=== The easy way ===
	Use [https://www.audacityteam.org/ audacity] :D		Use [https://www.audacityteam.org/ audacity] :D
	# Open the file with audacity		# Open the file with audacity
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	# Click on [Save]		# Click on [Save]

	== Further readings ==		=== Further readings ===
	* [https://en.wikipedia.org/wiki/Compression_artifact#Audio Audio compression artifacts]		* [https://en.wikipedia.org/wiki/Compression_artifact#Audio Audio compression artifacts]
	* [http://computationalculture.net/reflections-on-the-mp3-format/ Interview with Jonathan Sterne]		* [http://computationalculture.net/reflections-on-the-mp3-format/ Interview with Jonathan Sterne]
			</includeonly>

Joak: Joak moved page Prototypology/Compressology-2 to Prototypology/Transcodology-2

2024-11-26T07:47:59Z

Joak moved page Prototypology/Compressology-2 to Prototypology/Transcodology-2

← Older revision	Revision as of 09:47, 26 November 2024
(No difference)

Joak: Created page with "= How to compress audio? = == Why compressing audio? == * Which formats can be used on a web page? ** [https://caniuse.com/?search=mp3 mp3] ** [https://caniuse.com/?search=ogg ogg] ** [https://caniuse.com/?search=opus opus] == The fancy and hard way == Uses FFmpeg. FFmpeg is a powerful, open-source tool for decoding, encoding, and manipulating multimedia files.

 ffmpeg -i input.wav -b:a 128k output.mp3

* the option "-i" is the input file * the option "-b:..."

2024-11-25T23:08:19Z

Created page with "= How to compress audio? = == Why compressing audio? == * Which formats can be used on a web page? ** [https://caniuse.com/?search=mp3 mp3] ** [https://caniuse.com/?search=ogg ogg] ** [https://caniuse.com/?search=opus opus] == The fancy and hard way == Uses FFmpeg. FFmpeg is a powerful, open-source tool for decoding, encoding, and manipulating multimedia files. <pre> ffmpeg -i input.wav -b:a 128k output.mp3 </pre> * the option "-i" is the input file * the option "-b:..."

New page

= How to compress audio? =
== Why compressing audio? ==

* Which formats can be used on a web page?
** [https://caniuse.com/?search=mp3 mp3]
** [https://caniuse.com/?search=ogg ogg]
** [https://caniuse.com/?search=opus opus]

== The fancy and hard way ==
Uses FFmpeg. FFmpeg is a powerful, open-source tool for decoding, encoding, and manipulating multimedia files.
<pre>
ffmpeg -i input.wav -b:a 128k output.mp3
</pre>
* the option "-i" is the input file
* the option "-b:a" specifies the bit rate. its in kilobit per seconds. more bit less information is lost. possible option could be:
** 96k
** 112k
** 128k
** 160k
** 192k
** 256k
** 320k
* the last argument is the output file. with the format(.mp3) you define the compression format. options for audio would be:
** mp3
** ogg (or oga) https://www.xiph.org/ogg/
** opus https://opus-codec.org/

== The easy way ==
Use [https://www.audacityteam.org/ audacity] :D
# Open the file with audacity
# Click on [File] -> [Export]
## Select [Export as MP3]
## Select [Export as OGG]
## Select [Export Audio ...] for opus
# In the new window that open you can select different format optins.
# select a name for the new file
# Click on [Save]

== Further readings ==
* [https://en.wikipedia.org/wiki/Compression_artifact#Audio Audio compression artifacts]
* [http://computationalculture.net/reflections-on-the-mp3-format/ Interview with Jonathan Sterne]