Measurement Sweep File - Pops, Clicks

@juicehifi

I started having intermittent clicks, pops and other distortions during the measurment process. I recently increased number of measured channels from 10 to 13 (7 second sweep at 48Khz), but should that make a difference?
To try and figure out what's going on I listened to the sweep file and I hear the same pops and clicks, but when is sweep file generated? Is this file merely a recording of what happened during the measurment or is something wrong when sweep file is generated?
Edit: Never mind as I see it's generated as part of the measurement.

Still, original question remains as to why I'm having all of these issues after increasing number of channels with ASIO driver?

With ASIO driver I rarely if ever had these types of issues until now.

This is with 99% certainty hardware related. But see if there's a way for you to increase buffer sizes. Also, lower sample rate may work if you'r runing it high now.

I run sample rate at 48, so really can't go much lower.

The interesting thing about this is when you review the sweep files having pops, clicks and distortions, there is inappropriate wav output on other channels i.e. when channel 2 is being measured, and should be the onlly signal at that point in time, you'll also see ouput on channel 5. This random noise seems to correlate to length of sweep, where shorter sweep durations seem to decrease the amount of random noise.

Yes, it's possible it's hardware related, but the same hardware works properly with other software, both for measurement and audio playback.

I need to do additional measurements today, so I'll let you know how this goes.