The standardĮndured rather long, lived to see v2.3, and is presently obsolete.ĪC'97 codecs are not used in modern quality sound cards (instead, I2S-codecs are successfully used for consumer and professional audio equipment), and they completely shifted to the low-end sector, having degenerated into poor and buggy usually disabled "integrated AC'97-audio". To 48 kHz for compatibility with the audio format in DVD-Video. Sections, and the raise in maximum playback sample frequency up In popular sound cards due to complete separation of analog and digital Of the introduction of this specification was the audio quality improvement In 1997 Intel introduced a standard specification on cheap audio-codecsįor the masses, named AC‘97 (Audio Codec '97). Software emulation, and capability for hardware acceleration of audioįunctions, so all sound cards commenced acquiring DirectSound drivers. In 1996 Microsoft releasedĪ rather powerful DirectSound API with multi-channel audio support, Parameters, replaying and recording audio. Several simplest functions for initializing devices, setting up working As applied to audio, OS Windowsģ.11 contained MME (Multi Media Extensions) as part of Windows API with Programming Interface) is a unified standard interface, which is usedįor high-level access to similar functions of various devices, instead In the appearance of unified standards and APIs. The oblivion of DOS and the arrival of Windows the era of motley architecturesĪnd direct sound card programming came to an end. Let's start with the origins of the High Definition Audio specification.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |