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Topic: Format/route of PC audio: from data drive to sound-card (Read 3389 times) previous topic - next topic
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Format/route of PC audio: from data drive to sound-card

In a PC, how exactly is the digital signal routed from a HD or CD/DVD drive to the sound card (specifically, I mean: I2S, EIAJ, etc. as well as all the hardware encountered en route (buffers, memory, CPU, etc.))?

Format/route of PC audio: from data drive to sound-card

Reply #1 –
Its loaded over ATA to the system's RAM, processed by the CPU into usable PCM audio, and then DMA'ed to sound card's output buffer over some kind of chipset interconnect and then a PCI bus. 

If you want to know more, get out the manual for whatever motherboard or chipset you're using and see exactly which buses are present on it.  The specific interconnects depend on the chipset used.

Format/route of PC audio: from data drive to sound-card

Reply #2 –
Quote from: hollowman on
In a PC, how exactly is the digital signal routed from a HD or CD/DVD drive to the sound card (specifically, I mean: I2S, EIAJ, etc. as well as all the hardware encountered en route (buffers, memory, CPU, etc.))?



You are not asking for a post, you are asking for a thesis project!

Format/route of PC audio: from data drive to sound-card

Reply #3 –
Saratoga did a pretty good one sentence thesis then