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In Reply to: Re: Interesting thread indeed posted by ThomasPf on March 4, 2007 at 17:15:31:
I couldn't remember the motherboard and/or chip.I'm curious as to how the bits get passed "unmolested". Doesn't kmixer multiply everything by 0.999? Or is that a myth?
Does the bit perfect work ALL the time or "most" of the time? Does it work on both HDCD and DTS or only DTS?
If it's only DTS I'm wondering whether it's due to the same mechanism that enables passing DVD DD/DTS directly to SPDIF unmolested.
Follow Ups:
It just works for all PCM streams 16/44.1. To be honest I have not investigated why.As a guess I assume the driver registers itself in a way that it performs all mixing itself so kmixer is not in the picture. You can hear multiple streams so some code or firmware is doing mixing.
Cheers
Thomas
Might be worthwhile investigating this, since the Benchmark USB DAC could potentially be doing the same thing?I wonder if it's registering itself as having a hardware accelerated AC97 mixer supporting hardware resampling to 48kHz (but then not actually doing the resampling)?
Hmm,probably worth checking but when the driver/hardware does its own mixing, kmixer is not in the loop.
Cheers
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