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MPEG-1 and MPEG-2 Layer II Audio Encoding
https://www.loc.gov/preservation/digital/formats/fdd/fdd000338.shtml
MPEG-1 and MPEG-2 Layer II Audio Encoding. Description. Lossy audio compression that derives from the MUSICAM audio codec. This format may be referred to as MP2 and employs perceptual compression. This means MP2's compression takes out information that is imperceptible in the human auditory range. MP2 is the dominant audio …
MPEG-2 File with 422 Video and Layer II Audio Encoding
https://www.loc.gov/preservation/digital/formats/fdd/fdd000337.shtml
Identification and description. File containing an MPEG-2 program stream consisting of 4:2:2 Profile MPEG-2 encoded video multiplexed with MPEG-1 and MPEG-2 Layer II encoded audio. The program stream may also be delivered via a serial interface. Generally a final-state (end-user delivery) format.
MPEG-2 Audio Encoder - Win32 apps | Microsoft Docs
https://docs.microsoft.com/en-us/windows/win32/medfound/mpeg-2-audio-encoder
In this article. The Microsoft Media Foundation MPEG-2 audio encoder is a Media Foundation transform that encodes mono or stereo audio to MPEG-1 audio (ISO/IEC 11172-3) or MPEG-2 audio (ISO/IEC 13818-3).. The encoder supports Layer 1 and Layer 2 audio. It does not support MPEG-Layer 3 (MP3) audio.
Audio | MPEG
https://mpeg.chiariglione.org/standards/mpeg-2/audio
MPEG-2 AudioMPEG doc#: N7703Date: October 2005Authors: B. Grill, S. Quackenbush MPEG-1 Layer I or II Audio is a generic subband coder operating at bit rates in the range of 32 to 448 kb/s and supporting sampling frequencies of 32, 44.1 and 48 kHz. Typical bit rates for Layer II are in the range of 128-256 kbit/s, and 384 kb/s for professional applications.MPEG-1 Layers I and
What's the difference between AC3 Audio and MPEG2 Audio ...
https://forum.videohelp.com/threads/225022-What-s-the-difference-between-AC3-Audio-and-MPEG2-Audio
For two channel audio, there is no real difference between MPEG-1 layer II and MPEG-2 layer II: MPEG-2 audio extends on MPEG-1 audio. According to the MPEG Streamclip Help file, the app takes AC3 2/0 audio (two channels, left and right, thus regular stereo or Pro Logic encoded surround sound) "as is" when encoding to MP2, preserving Pro Logic ...
AUDIO CODING STANDARDS - MP3
http://www.mp3-tech.org/programmer/docs/AudioCoding.pdf
Fig. 2. MPEG-1 Layer III audio encoder. The MPEG-1 Layer III audio coder introduces many new features, in particular a hybrid filterbank which is a cascade of two filterbanks. For notational convenience, the first filterbank is labeled as the Layer III 1st hybrid level and the second as the Layer III 2nd hybrid level .
TwoLAME - MPEG Audio Layer 2 Encoder
TwoLAME - MPEG Audio Layer 2 Encoder. TwoLAME is an optimised MPEG Audio Layer 2 (MP2) encoder based on tooLAME by Mike Cheng, which in turn is based upon the ISO dist10 code and portions of LAME .
MPEG Audio FAQ: MPEG-2
https://sound.media.mit.edu/resources/mpeg4/audio/faq/mpeg2.html
Both MPEG-1 and the first two workitems of MPEG-2 have the three layer structure. The original MPEG-2 audio standard contained only the first workitems and was finalized in 1994. In order to improve coding efficiency for the 5-channel case, a non-backward-compatible audio coding scheme was defined (AAC) and finalized in 1997.
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