audio codec

(redirected from Audio Decoder)

audio codec

(1) (audio enCOder/DECoder) Software that compresses and decompresses a digital audio signal. MP3, Windows Media Audio (WMA), Dolby Digital and DTS are examples of popular codecs that compress and decompress digital audio. The audio codec may also be a hardware circuit. See codec examples, codec, Windows Media formats, QuickTime, audio compression, perceptual audio coding and G. standards.

(2) (audio enCOder/DECoder) A hardware circuit that converts sound waves into PCM digital code and vice versa. The term may refer to only the A/D and D/A conversion, or it may include the compression technique for further reducing the signal (definition #1 above). If the codec is specialized for human voice, it is known as a "speech codec," "voice codec" or "vocoder" (see speech codec). See sampling and codec.
References in periodicals archive ?
Microchip's Audio Decoder Framework allows for audio software codecs to be easily added to a PIC32 design project.
Digigram has recognized Barix as a launch partner for the technology, with Barix implementing Digigram's ES-100/spkr technology within its successful Exstreamer IP audio decoder and IPAM modules for OEM partnerships.
Tokyo, Japan, Aug 4, 2006 - (JCN) - Seiko Epson released a new voice guidance audio decoder chip for embedded applications on August 3.
Parthus Technologies plc (Nasdaq: PRTH) (LSE: PRH), a developer of platform-level intellectual property (IP), has announced that SigmaTel, a provider of system-level, mixed-signal integrated circuit solutions for the audio codec, audio decoder and wireless infrared markets, has licensed Parthus' MediaStream platform to power its next generation audio decoder integrated circuit for portable audio and home entertainment applications, including MP3-style players.
Features include up to 16 analog video inputs, production proven NTSC/PAL analog video decoder with Faroudja Intellicomb 3D Y/C separation; an NTSC/PAL video encoder, worldwide stereo analog audio decoder, powerful and programmable audio DSP, integrated audio DACs, USB 2.
Products include the IntAct(TM) IPTV software stack, and advanced multi-standard video and audio decoder software.
Off-the-Shelf MPEG Audio Decoder Available for ASIC Developers
The L64002 single-chip solution has over a million transistors and combines five powerful processors onto a single chip: an MPEG-2 video decoder, an audio decoder, a customized RISC engine for stream processing, a programmable graphics controller and an audio/video synchronization chip.
The Synchronized buffer delay enables the radio broadcaster to know that packet drops on a single path are not going to result in audio decoder glitches.
SigmaTel engaged with SPIRIT in pursuit of high performance codec technology for SigmaTel's portable digital audio device offerings," said Tom Zudock, Vice President of Technical Staff, Audio Decoder Software of SigmaTel.
Featuring true parallel processing, the CS49530 family allows AVR manufacturers to support extensive audio post-processing simultaneous with a multichannel audio decoder.