Intel heightens High Definition Audio

By Alun Williams

Posted on 16 Apr 2004 at 12:33

Promising consumer electronics-quality audio for the PC, Intel has finalised the v1.0 specification of its Intel High Definition Audio.

Previously codenamed 'Azalia', the audio interface supercedes AC97 and is designed to achieve a 50 per cent reduction in power for audio processing. This is important for the laptop space where every possible power saving is squeezed out of the system in order to extend battery life.

Using Dolby's Pro Logic IIx technology, which supports 7.1 surround sound, Intel states that an upgraded architecture and increased bandwidth allows for 192 kHz, 32-bit, multi-channel audio, future-proofing the spec for evolving high-quality audio formats.

'The PC will play a vital role in the explosion of home theater and advanced audio solutions,' said Thomas Loza, Intel technology initiatives manager. 'The PC platform remains a versatile solution for the media applications consumers are demanding today and High Definition Audio capabilities will propel the PC to truly top-notch audio performance.'

Previewed back in the IDF Fall 2003, the interface was officially unveiled at the start of the year - Intel lifts lid on High Definition Audio specs.

The spec is released under royalty-free license terms and was intended to be finalised ready for the release of the 'Grantsdale' chipset.

Requests for the specification and licensing information can be directed to nextgenaudio@intel.com.

See also:

IDF Spring 2004: Intel and Dolby make sound pairing on new audio spec

Intel lifts lid on High Definition Audio specs

IDF Fall 2003: Next-gen Centrino processor takes a bow