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From: Stan Hoeppner on 23 Jul 2010 01:10 Ron Johnson put forth on 7/22/2010 2:36 PM: > Intel, IIRC, tried at one point about 15 years ago to migrate most audio > processing on-CPU. For the current state of such things see: http://en.wikipedia.org/wiki/AC%2797 http://en.wikipedia.org/wiki/Intel_High_Definition_Audio The heavy lifting of audio processing, specifically the AD/DA conversion, is still today handled by dedicated silicon and other analog electronic components, not software on the host CPU. To perform the AD/DA directly on the CPU would require analog circuits built into the CPU itself along with additional socket pins and main board wires to the input output jacks. It would also require output analog line drivers with variable AC voltage--an audio amplifier--built into the CPU. It would be difficult, if not impossible, to add the required voltage regulators, capacitors, and resistor networks required for analog output circuits directly onto the CPU. These and many other factors will pretty much forever prevent a complete audio solution from being integrated directly into a general purpose CPU. The main benefit of AC97 and later specifications is that they almost instantly became defacto industry standards, which eliminated most/all of the proprietary software interfaces of the previous age of sound cards, epitomized by the Creative Multimedia SoundBlaster. This made writing sound device drivers for all operating systems much more straight forward and eliminated many existing software compatibility problems in the PC sound industry. -- Stan -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4C492349.1020304(a)hardwarefreak.com |