did you tried and select primary sound driver in your daw?
are you experiencing any difference in volume when you you switch forwards and backwards with asio and primary sound driver?
do u use a sample-rate above 96 khz?
have you installed any loopback software? (to route outputs to inputs)

this def. can be fixed.

this is certainly ruled out at this point

 

Last edited: Apr 28, 2016

I usually keep all my sessions at 44100.. but i will try some experiences at higher sample rates.. As driver selection in OSX is pretty straight forward.. you just choose your main driver.. And it happen with all my soundcards.. I thought too it could be a Plugin Delay Compensation thing but this still happens with no plugins involved.. Just summing audio tracks..
I`ve been thinking how to record this fenomenum to show you guys.. Maybe a video will do.. Any software suggestions to do this for mac?

 

you can use the free quicktime or camtasia

 

Had the same problem with Logic Pro X , solution? Realtime bounce , or make a new track and print the master bus. It's apparently something to do with some 3rd party plugins that don't work so well with offline bounce.

 

There is indeed a difference in sound between DAWs and usual audio players. I can't remember where I've read this, but the difference is coming from the sound passing through OS kernel (with players) which apply re-sampling and bit truncating vs the sound passing through ASIO driver (with DAW) which stays unaltered. This is why some "high end" soft audio players are available (Google for "bit-perfect") - they bypass the OS kernel and doesn't alter the sound at all.

On another hand, when your DAW plays a project, even if it doesn't write any file (the bounce) it sums all the tracks together in real time. Mathematical operations are strictly identical as when you bounce the project. So when you re-import a bounce in your DAW, it will sound identical as the project he comes from. You can make another test by playing your bounce in iZotope RX (don't forget to select the same soundcard/drivers as you've selected in your DAW). The sound will also be identical as the project played (and summed) in real time by your DAW.