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Directsound vs WASAPI vs ASIO
post Apr 8 2012, 05:10
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After reading many of the posts on this forum, it appears that there is no evidence that ASIO or WASAPI sounds any better than Directsound on Windows 7. I understand the importance of ABX testing - and I am interested in a way to do a double blind test of such claims. Let me first of all state that I cannot hear any difference. For me to be objective, I have used the same player for all tests - foobar2000 - and simply changed the Output from Directsound to WASAPI to ASIO. However, to do this, I have to stop the playback, change the driver, and then restart playback. This means comparions are doubtful at best due to the delay involved and my knowledge of what driver I selected.

How have others conducted such tests? Please note I am not trying to prove a difference exists - just to find a way to do the test properly. The ABX plugin for foobar2000 has been very useful to compare different WAV files. Obviously, one cannot use it for this sort of experiment.

Thank you for any suggestions or pointers to where this has been proved one way or another.
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post Oct 8 2012, 23:10
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[Not that fun mode on]

For me, ASIO is vastly superior. Evidence?
Currently, the whole sound subsystem of my Windows Seven is broken. Literally. How it has happened is still a mystery, four or five days ago, sound disappeared from my videos, etc. I've reinstalled sound card drivers, tried a restore point, nothing, nada, rien. The only thing that surfaced was a lot of chkdsk errors during restoration process which led to a total restoration failure. But Windows is happy with it, saying nothing about probably crunched system files.
That's quite frustrating:
- Using MME/DirectSound, usual programs output no sound without any error, playing anything I throw them,
- Players using WASAPI don't work, there's an unknown error when cueing music,
- Eventually my beloved Foobar2000 -> ASIO -> Musiland Digital Times -> S/PDIF -> Audio-gd Sparrow -> Superlux HD668B setup plays music flawlessly while I'm gathering information, downloading software updates and making backup of my documents in order to prepare Windows 7 reinstallation. huh.gif

ASIO, what else?


[Not that fun mode off]

AiZ stupid homepage - http://aiz.free.fr
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