Aesebu what is

In the former, the basic details of how most parts of the bits are used are explained. Note what each of the bytes handles. Automatic gain control is a technique implemented in many consumer electronics that automatically adjusts the Your email address will not be published.

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Mail this article Print this article. Not all of the time slots send actual audio data: a number of them are set aside for signaling use, and others for transmitting data about the channels. In normal use only 20 time slots are used for audio, providing a bit sound quality compare with a CD at 16 bits per sample.

So a complete audio block basically contains samples from two channels of audio and other data, containing bits in total. They do not actually carry any data but they facilitate clock recovery and subframe identification. Their structure minimizes the DC component on the transmission line.

Three preambles are possible :. The 8-bit preambles are transmitted in the same time allocated to four time slots at the start of each sub-frame time slots 0 to 3. These time slots can carry auxiliary information such as a low-quality auxiliary audio channel for producer talkback or studio-to-studio communication. Alternately, they can be used to enlarge the audio word-length to 24 bits, although the devices at either end of the link must be able to use this non-standard format. As stated before there is one channel status bit in each subframe, making one bit word for each channel in each block.

In the case of AES3, the standard describes in detail how the bits have to be used. Here is an overview showing the broad aims of the 24 bytes:.

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