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AC3 (Dolby Digital) Headers
http://www.stnsoft.com/DVD/ac3hdr.html
AC3 (Dolby Digital) Headers AC3 (Dolby Digital) Headers This is just a quick reference to the frame header of an AC3 stream. There is no intention to fully explain AC3, for that you should read standard A/52b, available from ATSC.org (Advanced Television Systems Committee). An AC3 frame has the following structure: syncframe () { syncinfo ();
AC-3 Compressed Audio (Dolby Digital), Revision A
https://www.loc.gov/preservation/digital/formats/fdd/fdd000209.shtml
Regarding technical metadata, the specification indicates the following: An AC-3 serial coded audio bitstream is made up of a sequence of synchronization frames, of which contains 6 coded audio blocks, each of which represent 256 new audio samples per channel. There are frame headers that contains information about bit-rate, sample rate, number of …
The structure of AC3 and EAC3 audio - virinext.com
https://virinext.com/the-structure-of-ac3-and-eac3-audio/
The FrameSizeCodeTable is described in AC3 specification. For EAC3 elementary stream, frame size is calculated based on frmsiz (frame size) field from bsi: frame_size = (bsi.m_frmsiz + 1) * 2 In the AC3 example file we have fscod = 1, frmsizecod = 20, FrameSizeCodeTable [20] [1] = 417, that means frame_size=834 bytes.
AC3 Audio ES Viewer User’s Guide - Jongbel Media Solutions
http://www.jongbel.com/download/AC3AudioESViewerUserGuide.pdf
AC-3 Bit Stream Information Header (bsi) tree view representation Hex data representation of the file Automatic hex positioning of the selected audio frame Hex data editing of the selected AC3 audio frame 1.2 Supported Structures AC-3 audio elementary bit stream (AC-3_bitstream) Synchronization Information Header (syncinfo)
AC3 Audio ES Viewer - Jongbel Media Solutions
https://www.jongbel.com/manual-analysis/ac3-audio-es-viewer/
The AC3 audio frames sequence can be investigated along with the most common parameters of each audio frame in the application’s list view. Detailed AC3 audio frame headers information is available in the application’s tree view. Hexadecimal representation of the AC3 audio elementary stream file is available in the Hex View module.
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