Topic: Madiface XT with hardware defect?
I have a somewhat strange problem with my Madiface XT. This is a unit I have rarely used for some time, but I just wanted to replace my HDSPe Madi FX with it, as I want to switch to a non-PCIe Mac pretty soon. Right now, I am still on a Hackintosh.
After switching to the Madiface XT, everything seems to work fine, until I suddenly got some strange noises when playing back music. It was a repetitive, digitally distorted pulse, that slightly changed over time and then suddenly went away. This behviour always returns at some random time and there seems to be nothing I have done that caused it. I.e., it just appears at some random time during playback (browser playback or iTunes or anything ...).
So, to record this noise for reference, I turned loopback on for the monitoring channels whenever it would come back. During testing, I discovered that the recorded audio in Cubase also sounded strange although the playback sounded fine during the recording. I then discovered that - without changing anything at all, the recorded loopback chased between ok, induced with some high-pitched noise up to totally distorted.
This is an example that demonstrates how it sounds fine in the beginning and then deteriorates (it sounded fine on the monitors during the recording).
This comes and goes during a loopback recording. Because that discovery I switched the sample rate and found that (so far) 48kHz the playback issue from before did not return. Instead, I got some seconds, when the audio sounded like though a bit crusher - but that was only a few seconds. I also noticed some occasional dropouts for less then a seconds, but these were rare.
Does this sound like a hardware defect to you? Is it possible to somehow narrow it down to some part? As the Madiface XT is currently not available, I would really like to find the reason for this. Tomorrow, I will also test with my m1 MacBook Air and see, if there is the same problem going on there.