audio frame

The sound sample block is encoded within an audio frame:

The Huffman tables are adapted once per audio frame.

Therefore, a physical frame on the disc will actually contain information from multiple logical audio frames.

The time information is also independent from the (possibly varying) audio decoding delay in receivers since the time is not embedded inside the audio frames.

During this process, audio frames are passed to the chipset's decoder, while the memory pointer of the display's hardware is adjusted to the next image within the video stream.

CIRC encoding also intervleaves the audio frames throughout the disc over several consecutive frames so that the information will be more resistant to errors.

An old-fashioned CD player reading subcode correctly sees a missing audio frame and interpolates any missing information that it cannot correct using information from neighbouring frames.

Although most of this information may be the same for all frames, MPEG decided to give each audio frame such a header in order to simplify synchronization and bitstream editing.

Most key features of MPEG-1 Audio were directly inherited from MUSICAM, including the filter bank, time-domain processing, audio frame sizes, etc.

The desired hidden digital data signal is combined in the distortion step using a pre-determined pseudorandom binary sequence for audio frame synchronization and large amounts of forward error correction for the hidden data to be embedded.

The comparison with hidden stations shows that RTS/CTS packages in each traffic class are profitable (even with short audio frames, which cause a high overhead on RTS/CTS frames).

This stream of audio frames, as a whole, is then subjected to CIRC encoding, which segments and rearranges the data and expands it with parity bits in a way that allows occasional read errors to be detected and corrected.

MPEG-4 SL, the MPEG-4 synchronization layer manages the identification of access units like video or audio frames, and scene description commands and the time stamping of them independent of the media type within elementary streams to enable synchronization among them.