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MPEG-2.5 audio layer 3 | Article about MPEG-2.5 audio ...
https://encyclopedia2.thefreedictionary.com/MPEG-2.5+audio+layer+3
MPEG-2.5 audio layer 3. (compression, standard, algorithm, file format) A non-standard extention of MPEG-2 audio layer 3 by FhG for lowest sampling rates (8-12 kHz) targeting bit rates from 16-32 kbps (possibly 8-160 kbps). This article is provided by FOLDOC - Free Online Dictionary of Computing ( foldoc.org)
STA013 MPEG 2.5 LAYER III (MP3) SOURCE DECODER
https://www.rpi.edu/dept/ecse/mps/6526-STA013_AppNote.pdf
The STA013 is an MPEG 2.5 Layer III Audio Decoder capable of decoding elementary streams from 8 up to 320 Kbit/sec. The full sampling frequencies range is supported, from 8 up to 48 KHz. For this reason we use the name "MPEG 2.5". • Supports all ISO Layer III Functionalities and WorldSpace Extensions. • Programmable Input Data Interface.
MPGEDIT - MPEG 1 / 2 / 2.5 (MP3) Audio File Editor
http://www.mpgedit.org/mpgedit/index.html
MPGEDIT - MPEG 1 / 2 / 2.5 (MP3) Audio File Editor. mpgedit is an MPEG 1 layer 1/2/3 (mp3), MPEG 2, and MPEG 2.5 audio file editor that is capable of processing both Constant Bit Rate (CBR) and Variable Bit Rate (VBR) encoded files. mpgedit can cut an input MPEG file into one or more output files, as well as join one or more input MPEG files into a single output file.
MPEG-2 Audio | SpringerLink
https://link.springer.com/chapter/10.1007/978-1-4615-0327-9_12
(The MP3 audio format as usually implemented as the MPEG-2.5 extension of Layer III.) Next we will discuss the MPEG-2 BC system which extended the MPEG-1 Audio coders to multichannel operation while preserving backwards compatibility so that MPEG-2 BC data streams would be playable on existing MPEG-1 players.
How to force a file to be MPEG-1, MPEG-2, or MPEG-2.5?
https://hydrogenaud.io/index.php?topic=113999.0
The three audio compression layers are defined in MPEG-1, MPEG-2, and MPEG-2.5, of which the first two are the official standards, and the third one is proprietary and unofficial.
MPEG AUDIO FRAME HEADER - mpgedit
http://www.mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm
Due to its quality MPEG audio became very popular. MPEG standards MPEG-1, MPEG-2 and MPEG-4 are known but this document covers first two of them. There is an unofficial MPEG-2.5 which is rarely used. It is also covered. MPEG-1 audio (described in ISO/IEC 11172-3) describes three Layers of audio coding with the following properties:
MPEG-2 - Wikipedia
https://en.wikipedia.org/wiki/MPEG-2
MPEG-2 (a.k.a. H.222/H.262 as was defined by the ITU) is a standard for "the generic coding of moving pictures and associated audio information". It describes a combination of lossy video compression and lossy audio data compression methods, which permit storage and transmission of movies using currently available storage media and transmission bandwidth.
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