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...company behind the [[ACELP.net]] [[vocoder]] and the [[AMR]] family of low-bitrate audio codecs.

AMR (Adaptive Multi-Rate) is a [[vocoder]] employed in low-bitrate applications like mobile phones. There are [[AMR-NB|narrowband]] and [[AMR-

byte 17-18 Probably some flags for low bitrate files. Example extradata dump of a low bitrate stereo file:

...aw, uncompressed YUV format. The video data in the file will have constant bitrate because each frame is exactly the same size in bytes.

RealAudio uses a reduced-bitrate variant of G.728. The original G.728 [http://www.itu.int/rec/dologin_pub.a

...of generation loss. Also they are not designed for surround. Therefore if bitrate is an issue AC-3 Virtual Surround is an ideal solution''".

...ssless Packing (MLP)]] but includes some extensions such as higher maximum bitrate and more channels.

...a transform codec at high bitrates and supports a hybrid mode for a small bitrate range. Opus defaults to a latency that's 1/10th that of earlier music codec

...transport stream. In order to ensure that the stream maintains a constant bitrate, a [[multiplexer]] may need to insert some additional packets. The PID 0x1F

| || || int32 bitrate || kbit/s ! samplerate (Hz) !! bitrate (kbit/s) !! bits/frame

...ec developed by Intel. It features a 256-point MDCT transform and constant bitrate (all known samples are mono and have 512-bit frames). These coefficients ar

This is a family of variable-bitrate sub-band coders. The codec seem to divide audio into 8 sub-bands and not al ...LPC-based speech codecs sharing the same core. VR codecs can have variable bitrate because of four possible frame modes that take different amount of bits.

| bgcolor="lime" | Yes<ref>Due to the very high bitrate of H.264 streams on HD-DVD and Blu-ray, very high-end hardware might be nee

46 variable bitrate ...for coefficients. Additionally now it has several frame sizes depending on bitrate: 64, 128, 256 and 320 samples.

|bitrate || 32 || ?

...ed explicitly), DTS-HD Master Audio (lossless audio) or DTS Express (a low-bitrate codec related to [[QDesign Music Codec]]).

...ratecontrol which has a better PSNR/bitrate and better subjective quality/bitrate than the current code. ...ne changes more accurately, has better PSNR/bitrate and subjective quality/bitrate than the current heuristic.

* anything else which might improve Snow quality per bitrate ...ratecontrol which has a better PSNR/bitrate and better subjective quality/bitrate than the current code.

** bits/sec = bitrate / (channels * sr)

...ratecontrol which has a better PSNR/bitrate and better subjective quality/bitrate than the current code. ...ne changes more accurately, has better PSNR/bitrate and subjective quality/bitrate than the current heuristic.