Comment 9 for bug 732977

it doesn't work at all with wasapi for 2 sound devices simultaneously.

i think that's because they work at different sample rates,
infact when i try 44100 it's ok for BCD but not ok for my internal audio card,
while 48000 works on my laptop soundcard but not on bcd.

if i use wasapi, it shows only 1 channel on my BCD while it has 2 stereo
channels outputs (1 for headphones and 1 for master),
so i can't use one only audio device at a time.

i need headphones

what asio for all does is resampling everything at 44100 so that's how it works
with multiple soundcars maybe?

i'm just guessing without knowing

________________________________
Da: jkone27 <email address hidden>
A: <email address hidden>
Inviato: Sab 12 marzo 2011, 14:25:11
Oggetto: Re: [Bug 732977] Re: cue audio (headphones) crashes using 2 soundcards
with asio4all on win7 64bit

thank you so much! i will try and report my results

best

Giacomo

________________________________
Da: Bill Good <email address hidden>
A: <email address hidden>
Inviato: Sab 12 marzo 2011, 13:52:19
Oggetto: [Bug 732977] Re: cue audio (headphones) crashes using 2 soundcards with

asio4all on win7 64bit

According to http://portaudio.com/trac/ticket/76 PortAudio (the library
we use to interface with sound hardware) only supports one ASIO device
at a time. Like I said, really not sure why you're able to open 2, might
be a PortAudio bug (or maybe they've made progress on that ticket and
the fix just isn't totally working yet, who knows).

I know WASAPI has both an exclusive and shared (mixed) mode. I'd imagine
the shared mode is higher latency than the exclusive mode (which is
practically equivalent to ASIO) and I don't know how to distinguish
between the two modes in software, but I've always gotten very low
latency with WASAPI in Mixxx and I know Sean (one of our Windows guys)
recommends WASAPI.

** Bug watch added: portaudio.com/trac/ #76
  http://portaudio.com/trac/ticket/76

--
You received this bug notification because you are a direct subscriber
of the bug.
https://bugs.launchpad.net/bugs/732977

Title:
  cue audio (headphones) crashes using 2 soundcards with asio4all on
  win7 64bit

Status in Mixxx:
  New

Bug description:
  when i activate the cue (headphones) button, everything goes fine till
  at a certain moment, the sound starts sparkling and cracking, looks
  like the audio buffer reaches its limit and crashes. after a while the
  sounds get back good in hadphones but with a huge delay (like half a
  second maybe or something like that) so you're not able anymore to
  mixxx your tracks easilly.

  luckily the master output goes fine instead (no sparkling at all)!! :)
  so people when i play don't get it :D

  i have also problems using BCD3000 native asio drivers. they don't seem to
work with mixxx on windows7 64bit

  cheers from italy

To unsubscribe from this bug, go to:
https://bugs.launchpad.net/mixxx/+bug/732977/+subscribe

--
You received this bug notification because you are a direct subscriber
of the bug.
https://bugs.launchpad.net/bugs/732977

Title:
  cue audio (headphones) crashes using 2 soundcards with asio4all on
  win7 64bit

Status in Mixxx:
  New

Bug description:
  when i activate the cue (headphones) button, everything goes fine till
  at a certain moment, the sound starts sparkling and cracking, looks
  like the audio buffer reaches its limit and crashes. after a while the
  sounds get back good in hadphones but with a huge delay (like half a
  second maybe or something like that) so you're not able anymore to
  mixxx your tracks easilly.

  luckily the master output goes fine instead (no sparkling at all)!! :)
  so people when i play don't get it :D

  i have also problems using BCD3000 native asio drivers. they don't seem to
work with mixxx on windows7 64bit

  cheers from italy

To unsubscribe from this bug, go to:
https://bugs.launchpad.net/mixxx/+bug/732977/+subscribe