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Advanced Audio Coding (MPEG-2), Audio Data …
https://www.loc.gov/preservation/digital/formats/fdd/fdd000112.shtml
ADIF stands for Audio Data Interchange Format and consists of a brief header that precedes AAC data in a file. Note that the compression approach in AAC_MP2 (used in this format) was subsequently refined as AAC_MP4, which requires a different decoder. Production phase: Generally used for final-state, end-user delivery. Relationship to other formats
High level overview of AAC audio with ADTS encapsulation
https://virinext.com/high-level-overview-of-aac-audio-with-adts-encapsulation/
AAC audio compression has been standardized as a part of MPEG-2 and MPEG-4 specifications. First version was released in 1997. For future transport AAC audio can be packaged with different methods: ADIF – has one header at the beginning of a file followed by raw AAC blocks ADTS – ADTS header is added to the beginning of each raw AAC block
Advanced Audio Coding - Wikipedia
https://en.wikipedia.org/wiki/Advanced_Audio_Coding
Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format, AAC generally achieves higher sound quality than MP3 encoders at the same bit rate. AAC has been standardized by ISO and IEC as part of the MPEG-2 and MPEG-4 specifications.
AAC file header - HydrogenAud
https://hydrogenaud.io/index.php?topic=3026.0
BTW: ADTS is the same as the headers in MP3, so you should be able to use about the same code (mind the emphasis bits for MPEG-2). ADIF is supported by PsyTEL and very old versions of FAAC too (before it had ADTS support). Also, the FhG command line encoders use it by default and all the ISO reference AAC files have an ADIF header. Menno. Jfaul.
AAC Media Types - Win32 apps | Microsoft Docs
https://docs.microsoft.com/en-us/windows/win32/medfound/aac-media-types
This subtype is used for AAC contained in an AVI file with the audio format tag equal to WAVE_FORMAT_RAW_AAC1 (0x00FF). For this subtype, the media type gives the sample rate and number of channels after the SBR and PS tools are applied, if present. The following media type attributes apply to AAC audio. Audio Media Types Media Type Attributes
audio - AAC ADTS raw data strange header - Stack Overflow
https://stackoverflow.com/questions/13682412/aac-adts-raw-data-strange-header
In case muxer stripped out any header there was, you might have raw AAC which should start with single_channel_element() in case of mono or channel_pair_element() in case of stereo. single_channel_element() starts with 3 bits 000. cannel_pair_element() starts with 3 bits 001. Your sample starts with 0010 0001 0001 1001 so it might be channel_pair_element().
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