Confusion with asio, wasapi output.
Jun 16, 2010 at 6:35 PM Post #16 of 22


Quote:
naike said:
You didn't get my point, I want to be able to start/stop listening to music when I want (when someone is calling in skype or links me a youtube link or something) it's just kinda stupid to open foobar and change the output each time I want to do something, be it listening to music or do something after listening to music. I also very often listen to music, then I decide to check my youtube subscriptions for example, or want to tell my friend in skype something.
But each time I want to do something I have to open foobar, as said, and change the output.
 
That's my problem...
Click to expand...


Hmm thats not how it is for me.  With me if I am listening to music with foobar/wasapi I cannot get on audio from youtube or anything else at the same time.  But I don't need to go into foobar and change output device everytime I want to watch a video... that seems strange to me.
 
Jun 16, 2010 at 6:47 PM Post #17 of 22
Hmm, it seems that if I listen to something in foobar with wasapi, and pause it, and open a youtube link for example, it will play the sound.
But if I don't pause while opening it wont play the sound, I need to restart firefox while foobar is paused.
 
Jun 17, 2010 at 3:09 AM Post #19 of 22


Quote:
roseval said:
 
 
WASAPI and WASAPI are two
  1. shared mode, the output of WASAPI is routed through the Windows Audio Engine. This is the mixer so it is possible to play multiple audio streams
  2. exclusive mode: the output is send straight to the sound card. Bypassing the mixer is what might yield a benefit in sound quality.
 
As exclusive mode bypasses the audio engine:
  1. the mixer is bypassed so you can only play 1 stream
  2. no SRC (sample rate conversion) is applied, what you send to the sound card must match its capabilities. If not it will yield an error
 
WASAPI in shared mode make no sense to me, you might as well use DS, the Windows default.
I do hear a difference between WASAPI in exclusive mode and DS. WASAPI sounds a tat more transparent.
As YMMV, do a listening test and compare DS with WASAPI exclusive.
If you don’t hear a difference, stick to DS for a hassle free operation.
If you do favour WASAPI exclusive, you have to live with the fact that anything not matching the capabilities of the sound card won’t play.
 
If you have 2 audio devices, say a DAC and the system speakers you can have WASAPI in exclusive mode and hear system sounds.
Simply set the onboard speakers to default playback device and in your media player choose WASAPI to your DAC
More details:
http://thewelltemperedcomputer.com/SW/Windows/Win7/WASAPI.htm
Click to expand...



thanks for the explanation.  i am also a rather new foobar+wasapi user..and i am interested in what you said here.  how can i know if i am using wasapi in exclusive mode?      right now i putted the onboard soundcard as the default device and muted it completely.  i can still hear the foobar...so i guess i am exclusive?  is there something else i need to configure in windows sound panel?
 
Jun 17, 2010 at 3:42 AM Post #20 of 22
ok..I think i figured it out by myself.  i checked "allow applications to use exclusive mode" (or something like that..) in the sound devices control panel so i think it is forcing exclusive mode anyway.
 
Jun 17, 2010 at 7:17 AM Post #21 of 22
I thought about this in planning my PC build. Basically I decided there were two options:
1) have more than one soundcard (I saw some guy running about 3 for different things on here)
2) have a dedicated 'HifiPC'; a tiny mini ITX thing connected to a NAS device with all my music on, and also have a dedicated machine for games/entertainment.
 
I decided to go with the 2nd, it seems less hassle to make something that's purely for music playback and won't cost much to build, since you're going for low-power, low cost components and there's no conflict with games, surround sound e.t.c. You could look at 1) if you have several expansion slots though!
 
Jun 17, 2010 at 6:17 PM Post #22 of 22
I understand the wasapi thing now.
 
But now, I have another problem...
Randomly I can hear a "snap" or "crack" sound coming from my headphones, just any time.
What could this be?
 
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