Phasing issues with multiple profiles


    KPA > SPDIF > M-AUDIO DELTA 1010 > Reaper.


    No reamping, 4 performances.


    This wasn't really a post asking how to fix this rather how to prevent it in the future.

    @nightlight sample rate and bit depth can't be changed so easily in a session. When the KPA is used with spdif it has to be set at 44.1 and and 16 bit....if you change the sample rate you will change the pitch and tempo actually and that would be an obvious problem. 16 bit can be easily converted to 24 and vice versa....that will not cause phasing.


    chamelious: you set up is pretty straight forward and if there's no reamping done and all performances have bee recorded separately, it can only be that your engineer perceives inaccuracies on your performances as "phasing". That's why you use panning to give it depth, separation and avoid these issues. I don't really think it's phasing tbh. Ask your engineer to the a look at the transients and other things but if you want to avoid it in the future, try playing like a robot :)

    Quote from TheLightspeeder

    @nightlight sample rate and bit depth can't be changed so easily in a session. When the KPA is used with spdif it has to be set at 44.1 and and 16 bit....if you change the sample rate you will change the pitch and tempo actually and that would be an obvious problem. 16 bit can be easily converted to 24 and vice versa....that will not cause phasing.


    Not in a single session, but across multiple computers? Stranger things have happened. When you have different bit depths, for example, spaces between audio get kind of funny. And upsampling/downsampling isn't really such a good thing for audio.

    Yes up or down sampling is a loss of quality but it has nothing to do with audio out of sync or misaligned transients. Most music is downsampled for the consumer in most media applications.


    anyways, I still don't really understand the phasing issue when all parts were recorded separately

    The profiles themselves are probably just out of phase with each other. You should be able to see that yourselves if you zoom in on the waveforms a bit.


    happens all the time when recording "real" multiple amps too