If you set Win to 24 bit 192 kHz, all audio will be resampled to this format. WASAPI in shared mode (Direct Sound) uses the settings in de win audio panel. WASAPI or ASIO allows you to bypass the Win mixer.
My guess is that an incorrect setup might make asio and wasapi work differently but with a correct setup they are probably identical. There's also those notes about the oscilloscope, the same with scope note means that I've seen the signal to sweep up and then back down with mostly a constant amplitude except for the highest and lowest frequencies, the amplitudes dropped there.Īnyways, I'm not sure about the WASAPI vs ASIO thing but misconfiguration can certainly cause some problems and if someone makes changes without really knowing what's going on, they are likely to run into it. Output set to kernel streaming, wasapi was identical to this:Īt the time I had xonar essence stx asio, fl studio asio and asio4all and I don't remember which one I was using. This is the file I was playing with foobar:įoobar's output set to primary sound driver: I connected the output of the sound card to the input, and I also used an analogue oscilloscope to measure the output directly (so the signal wouldn't go through an A/D conversion).
#Asio4all vs fl studio asio windows
Windows is also set to 192kHz, both the playback and recording.