bitperfect windows drivers?

[leeperry]

http://www.computeraudiophile.com/content/k-mixer

KMixer from Windows XP is never bit perfect. Kernel Streaming or ASIO just avoid KMixer though.
The one exception are special (unsigned) drivers, like the MME drivers from RME.

No matter what you do and shut off, KMixer always dithers. So the only way of getting bit perfect, is avoid KMixer (like those special drivers do).

my M-Audio Audiophile USB also has bit-perfect MME drivers...is there ANY other soundcard apart from the RME that has bit-perfect MME/WDM drivers ?! 🙁

some soundcard support rewire, like the AudioTrak/ESI Directwire where you can internally route the WDM/MME outputs to the ASIO input....but even then, it still goes through KMixer apparently

I know you can go ASIO/KS, but having MME/WDM bitperfect drivers is just too cool! bitperfect anywhere(game/video player), anytime 🙂

 

[leeperry]

http://www.soundonsound.com/sos/dec07/articles/pcnotes_1207.htm

some interface manufacturers, such as Echo, also provide a special driver option that bypasses the Kernel Mixer altogether, to connect directly to the hardware beneath. Echo call their option 'Pure Wave', and although you lose Direct Sound support you get a much lower-latency alternative to the standard 'Wave' drivers inside applications that don't support the ASIO driver format, as well as avoiding possible SRC.