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It is a successor to Dolby Digital (AC-3), and has a number of improvements over that codec, including support for a wider range of data rates (32 kbit/s to 6144 kbit/s), an increased channel count, and multi-program support (via substreams), as well as additional tools (algorithms) for representing compressed data and counteracting artifacts.
First public release date is first of either specification publishing or source releasing, or in the case of closed-specification, closed-source codecs, is the date of first binary releasing. Many developing codecs have pre-releases consisting of pre-1.0 versions and perhaps 1.0 release candidates (RCs), although 1.0 may not necessarily be the ...
Enhanced Audio Codec is an audio codec developed and owned by Beijing E-World, that uses a unique perceptual model, spectral band replication, to compress the audio signal by utilizing the redundancy as well as the relevancy. The EAC codec supports mono, stereo and 5.1 surround sound modes for encoding and decoding. EAC is part of the EVD ...
Those codecs are used by many PC games which use voice chats via Microsoft DirectPlay API. Voxware MetaVoice Windows Media Player (voxmvdec.ax) Truespeech. Windows Media Player (tssoft32.acm) FFmpeg (decoder only) MS GSM Windows Media Player (msgsm32.acm) libgsm; FFmpeg (decoder only) MS-ADPCM Windows Media Player (msadp32.acm) FFmpeg
A lossless audio coding format reduces the total data needed to represent a sound but can be de-coded to its original, uncompressed form. A lossy audio coding format additionally reduces the bit resolution of the sound on top of compression, which results in far less data at the cost of irretrievably lost information.
Dolby TrueHD is a lossless, multi-channel audio codec developed by Dolby Laboratories for home video, used principally in Blu-ray Disc and compatible hardware. Dolby TrueHD, along with Dolby Digital Plus (E-AC-3) and Dolby AC-4, is one of the intended successors to the Dolby Digital (AC-3) lossy surround format.
This is a listing of open-source codecs—that is, open-source software implementations of audio or video coding formats, audio codecs and video codecs respectively. Many of the codecs listed implement media formats that are restricted by patents and are hence not open formats.
Internet low Bitrate Codec 13.33 or 15.2 kbit/s RFC 3952 dynamic PCMA-WB audio 1 16000 5 ITU-T G.711.1 A-law RFC 5391 dynamic PCMU-WB audio 1 16000 5 ITU-T G.711.1 μ-law RFC 5391 dynamic G718 audio 32000 (placeholder) 20 ITU-T G.718: draft-ietf-payload-rtp-g718: dynamic G719 audio (various) 48000 20 ITU-T G.719: RFC 5404 dynamic G7221 audio ...