ATRAC - Revision history

Porcuswiki: Category.

2022-01-27T21:26:42Z

Category.

← Older revision		Revision as of 21:26, 27 January 2022
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	*<s> rjamorim conduced a listening test</s> featuring ATRAC3 at 132kbps.		*<s> rjamorim conduced a listening test</s> featuring ATRAC3 at 132kbps.

	[[Category:~~Lossy audio codecs~~]]		[[Category:Codecs]]

Beardgoggles: Moved to "Lossy audio codecs" category.

2019-07-24T20:39:42Z

Moved to "Lossy audio codecs" category.

← Older revision		Revision as of 20:39, 24 July 2019
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	*<s> rjamorim conduced a listening test</s> featuring ATRAC3 at 132kbps.		*<s> rjamorim conduced a listening test</s> featuring ATRAC3 at 132kbps.

	[[Category:~~Audio~~ codecs]]		[[Category:Lossy audio codecs]]

Beardgoggles: Updated info on Connect Music Store; additional interwiki links.

2019-07-10T18:22:45Z

Updated info on Connect Music Store; additional interwiki links.

← Older revision		Revision as of 18:22, 10 July 2019
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	'''ATRAC''' (~~Adaptive TRansform Acoustic Coding~~) is a proprietary audio compression technology developed by Sony for usage in their MiniDisc line of digital audio players.		'''ATRAC''' ('''<u>A</u>daptive <u>Tr</u>ansform <u>A</u>coustic <u>C</u>oding''') is a proprietary audio compression technology developed by Sony for usage in their [[MiniDisc]] line of [[:Category:Digital Audio Players\|digital audio players]].

	It actually relates to three different audio compression technologies related among themselves, but with incompatibilities. It uses quadrature mirror filters and modified discrete cosine transform to represent encoded audio.		It actually relates to three different audio compression technologies related among themselves, but with incompatibilities. It uses quadrature mirror filters and modified discrete cosine transform to represent encoded audio.

	==ATRAC==		==ATRAC==
	ATRAC (also called ATRAC1) was developed in 1991, and used in the first MiniDisc players in the early nineties. It used bitrates of 292kbps for stereo audio and ~~146~~ for mono. Several subversions were released, from 1 to 4.5, and all of them are backwards and forwards compatible. It's reported that it only started sounding good after version 3.		ATRAC (also called ATRAC1) was developed in 1991, and used in the first MiniDisc players in the early nineties. It used bitrates of 292kbps for stereo audio and 146kbps for mono. Several subversions were released, from 1 to 4.5, and all of them are backwards- and forwards-compatible. It's reported that it only started sounding good after version 3.

	==ATRAC3==		==ATRAC3==
	ATRAC3 was released by Sony in 2000. It offers much better performance than ATRAC1, with reasonable quality at 132kbps. It's not backwards compatible with ATRAC1.		ATRAC3 was released by Sony in 2000. It offers much better performance than ATRAC1, with reasonable quality at 132kbps. It's not backwards-compatible with ATRAC1.

	ATRAC3 was used as default audio codec for mid-high bitrates in ~~Real Audio~~ 8. Since ~~Real Audio~~ 10, the default codec is [[AAC]]. It is also ~~being~~ used at ~~Sony's~~ [http://musicstore.connect.com/ Connect~~] music store~~.		ATRAC3 was used as default audio codec for mid-high bitrates in [[RealAudio]] 8. Since RealAudio 10, the default codec is [[AAC]]. It was also used at the now-defunct<ref>[https://web.archive.org/web/20110503185734/http://musicstore.connect.com/ CONNECT Music Store] via archive.org</ref> Sony Connect Music Store.

	==ATRAC3plus==		==ATRAC3plus==
	In 2003, Sony released ATRAC3plus, the third backwards-incompatible revision of their codec. They promise to deliver transparency at 48kbps with this new codec (of course, that's an absurd claim).		In 2003, Sony released ATRAC3plus, the third backwards-incompatible revision of their codec. They promise to deliver transparency at 48kbps with this new codec (of course, that's an absurd claim).

			==References==
			<references/>

	==External links==		==External links==
			*{{wikipedia\|Adaptive Transform Acoustic Coding\|ATRAC}}
	*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net		*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net
	*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC		*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC
	*<s> rjamorim conduced a listening test</s> featuring ATRAC3 at 132kbps.		*<s> rjamorim conduced a listening test</s> featuring ATRAC3 at 132kbps.

			[[Category:Audio codecs]]
	[[Category:~~Codecs~~]]

Beardgoggles: Added subheadings.

2019-07-09T07:53:42Z

Added subheadings.

← Older revision		Revision as of 07:53, 9 July 2019
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	ATRAC (Adaptive TRansform Acoustic Coding) is a proprietary audio compression technology developed by Sony for usage in their MiniDisc line of digital audio players. It actually relates to three different audio compression technologies related among themselves, but with incompatibilities. It uses quadrature mirror filters and modified discrete cosine transform to represent encoded audio.		'''ATRAC''' (Adaptive TRansform Acoustic Coding) is a proprietary audio compression technology developed by Sony for usage in their MiniDisc line of digital audio players.

			It actually relates to three different audio compression technologies related among themselves, but with incompatibilities. It uses quadrature mirror filters and modified discrete cosine transform to represent encoded audio.

			==ATRAC==
	ATRAC (also called ATRAC1) was developed in 1991, and used in the first MiniDisc players in the early nineties. It used bitrates of 292kbps for stereo audio and 146 for mono. Several subversions were released, from 1 to 4.5, and all of them are backwards and forwards compatible. It's reported that it only started sounding good after version 3.		ATRAC (also called ATRAC1) was developed in 1991, and used in the first MiniDisc players in the early nineties. It used bitrates of 292kbps for stereo audio and 146 for mono. Several subversions were released, from 1 to 4.5, and all of them are backwards and forwards compatible. It's reported that it only started sounding good after version 3.

			==ATRAC3==
	ATRAC3 was released by Sony in 2000. It offers much better performance than ATRAC1, with reasonable quality at 132kbps. It's not backwards compatible with ATRAC1.		ATRAC3 was released by Sony in 2000. It offers much better performance than ATRAC1, with reasonable quality at 132kbps. It's not backwards compatible with ATRAC1.

	ATRAC3 was used as default audio codec for mid-high bitrates in Real Audio 8. Since Real Audio 10, the default codec is [[AAC]]. It is also being used at Sony's [http://musicstore.connect.com/ Connect] music store.		ATRAC3 was used as default audio codec for mid-high bitrates in Real Audio 8. Since Real Audio 10, the default codec is [[AAC]]. It is also being used at Sony's [http://musicstore.connect.com/ Connect] music store.

			==ATRAC3plus==
	In 2003, Sony released ATRAC3plus, the third backwards-incompatible revision of their codec. They promise to deliver transparency at 48kbps with this new codec (of course, that's an absurd claim).		In 2003, Sony released ATRAC3plus, the third backwards-incompatible revision of their codec. They promise to deliver transparency at 48kbps with this new codec (of course, that's an absurd claim).

	==~~Links~~==		==External links==

	*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net		*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net
	*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC		*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC

87.112.81.64: /* Links */ Removed a Dead Url Link.

2012-12-17T23:20:24Z

Links: Removed a Dead Url Link.

← Older revision		Revision as of 23:20, 17 December 2012
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	*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net		*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net
	*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC		*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC
	*<s>~~[http://www.rjamorim.com/test/~~ rjamorim conduced a listening test]</s> featuring ATRAC3 at 132kbps.		*<s> rjamorim conduced a listening test</s> featuring ATRAC3 at 132kbps.


	[[Category:Codecs]]		[[Category:Codecs]]

109.149.14.19: /* Links */ rjamorim link (dead link) , Strike Thru.

2012-10-25T19:15:12Z

Links: rjamorim link (dead link) , Strike Thru.

← Older revision		Revision as of 19:15, 25 October 2012
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	*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net		*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net
	*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC		*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC
	*[http://www.rjamorim.com/test/ rjamorim conduced a listening test] featuring ATRAC3 at 132kbps.		*<s>[http://www.rjamorim.com/test/ rjamorim conduced a listening test]</s> featuring ATRAC3 at 132kbps.


	[[Category:Codecs]]		[[Category:Codecs]]

Pepoluan: move to --> Category:Codecs

2006-09-08T22:57:01Z

move to --> Category:Codecs

← Older revision		Revision as of 22:57, 8 September 2006
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	[[Category:~~Codec~~]]		[[Category:Codecs]]

Pepoluan at 06:40, 2 September 2006

2006-09-02T06:40:18Z

← Older revision		Revision as of 06:40, 2 September 2006
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	*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC		*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC
	*[http://www.rjamorim.com/test/ rjamorim conduced a listening test] featuring ATRAC3 at 132kbps.		*[http://www.rjamorim.com/test/ rjamorim conduced a listening test] featuring ATRAC3 at 132kbps.


			[[Category:Codec]]

Rjamorim: another error fixed

2005-07-02T06:07:22Z

another error fixed

← Older revision		Revision as of 06:07, 2 July 2005
Line 1:		Line 1:
	ATRAC (Adaptive TRansform Acoustic Coding) is a proprietary audio compression technology developed by Sony for usage in their MiniDisc line of digital audio players. It actually relates to three different audio ~~compression~~ compression technologies related among themselves, but with incompatibilities. It uses quadrature mirror filters and modified discrete cosine transform to represent encoded audio.		ATRAC (Adaptive TRansform Acoustic Coding) is a proprietary audio compression technology developed by Sony for usage in their MiniDisc line of digital audio players. It actually relates to three different audio compression technologies related among themselves, but with incompatibilities. It uses quadrature mirror filters and modified discrete cosine transform to represent encoded audio.

	ATRAC (also called ATRAC1) was developed in 1991, and used in the first MiniDisc players in the early nineties. It used bitrates of 292kbps for stereo audio and 146 for mono. Several subversions were released, from 1 to 4.5, and all of them are backwards and forwards compatible. It's reported that it only started sounding good after version 3.		ATRAC (also called ATRAC1) was developed in 1991, and used in the first MiniDisc players in the early nineties. It used bitrates of 292kbps for stereo audio and 146 for mono. Several subversions were released, from 1 to 4.5, and all of them are backwards and forwards compatible. It's reported that it only started sounding good after version 3.
Line 11:		Line 11:
	==Links==		==Links==

			*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net
	*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC		*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC
	*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net
	*[http://www.rjamorim.com/test/ rjamorim conduced a listening test] featuring ATRAC3 at 132kbps.		*[http://www.rjamorim.com/test/ rjamorim conduced a listening test] featuring ATRAC3 at 132kbps.

Rjamorim: typo

2005-07-02T06:05:31Z

typo

← Older revision		Revision as of 06:05, 2 July 2005
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	*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC		*[http://www.minidisc.org/ Minidisc.org] - Resources and forums about MiniDisc and ATRAC
	*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net		*[http://www.sony.net/Products/ATRAC3/ ATRAC3] official website at Sony.net
	8[http://www.rjamorim.com/test/ rjamorim conduced a listening test] featuring ATRAC3 at 132kbps.		*[http://www.rjamorim.com/test/ rjamorim conduced a listening test] featuring ATRAC3 at 132kbps.