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2. Intel High Definition Audio - Wikipedia

   en.wikipedia.org/wiki/Intel_High_Definition_Audio

   Intel High Definition Audio (IHDA) (also called HD Audio or development codename Azalia) is a specification for the audio sub-system of personal computers. It was released by Intel in 2004 as the successor to their AC'97 PC audio standard.

3. List of open-source codecs - Wikipedia

   en.wikipedia.org/wiki/List_of_open-source_codecs

   Daala – Experimental Video codec which was under development by the Xiph.Org Foundation and finally merged into AV1. Thor – Experimental royalty free video codec which was under development by Cisco Systems, and merged technologies into AV1. Turing – A High Efficiency Video Coding (HEVC/H.265) encoder implemented by BBC Research.

4. AC'97 - Wikipedia

   en.wikipedia.org/wiki/AC'97

   In 2004, Intel released Intel High Definition Audio (HD Audio) which is a successor that is not backward compatible with AC'97. [2] HD Audio has the capability to define up to 15 output channels, but in practice most motherboards provide no more than 8 channels ( 7.1 surround sound ).

5. SigmaTel - Wikipedia

   en.wikipedia.org/wiki/SigmaTel

   SigmaTel's AC'97 audio codec chip. SigmaTel, Inc., was an American system-on-a-chip (SoC), electronics and software company headquartered in Austin, Texas, that designed AV media player/recorder SoCs, reference circuit boards, SoC software development kit reference designs used to make media players for Apple iPod Shuffle, Samsung, Sony Walkman and 150 others built around a custom cooperative ...

6. List of codecs - Wikipedia

   en.wikipedia.org/wiki/List_of_codecs

   Sorenson AVC Pro codec, Sorenson's new implementation; OpenH264 (baseline profile only) x264 (encoder only; supports some of Hi422P and Hi444PP features) FFmpeg (decoder only) MPEG-4 AVC variants: MPEG-4 Web Video Coding or MPEG-4 Part 29 – a subset of MPEG-4 AVC baseline profile; XAVC; HEVC (High Efficiency Video Coding, H.265, MPEG-H part 2)

7. Integrated Device Technology - Wikipedia

   en.wikipedia.org/wiki/Integrated_Device_Technology

   Integrated Device Technology, Inc. (IDT), was an American semiconductor company headquartered in San Jose, California.The company designed, manufactured, and marketed low-power, high-performance mixed-signal semiconductor products for the advanced communications, computing, and consumer industries.

8. Audio codec - Wikipedia

   en.wikipedia.org/wiki/Audio_codec

   The objective of the algorithm is to represent the high-fidelity audio signal with a minimum number of bits while retaining quality. This can effectively reduce the storage space and the bandwidth required for transmission of the stored audio file. Most software codecs are implemented as libraries which interface to one or more multimedia players.

9. High-Definition Coding - Wikipedia

   en.wikipedia.org/wiki/High-Definition_Coding

   HDC (Hybrid Digital Coding or High-Definition Coding) with SBR (spectral band replication) is a proprietary lossy audio compression codec developed by iBiquity for use with HD Radio. It replaced the earlier PAC codec in 2003. [1] [2] In June 2017, the format was reverse engineered and determined to be a variant of HE-AACv1. [3]