Noise on the first input channel of BlackHole 16c

[giacecco]

I went back to BlackHole today after some time, after using it successfully in the past, and realised that now I cannot use its first input because it outputs some kind of high-frequency distortion, as shown in the video here.

I am using BlackHole16ch.v0.2.9 on macOS 10.15.7, and BlackHole is the first device in an aggregate device so to exchange inputs and outputs between Bitwig Studio (using the aggregate) and VCV Rack (using BlackHole). Specifically, I am sending the CV for an arpeggio using a Bitwig's "HW CV Instrument" to a synth simulated in VCV rack. Anything from output 2 upwards works correctly, but output 1 doesn't: I hear some kind of noise instead. If I also send the Bitwig CV output to it, it seems like its voltage is "summed" to it.

Any ideas? Thanks.

[devinroth]

Super strange. I’m not handling channel 1 any differently. Try a few things and report back. Does it happen when BlackHole isn’t the first in the aggregate? How about BlackHole along without an aggregate? You’ll need to record audio to check. Devin Roth

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On Apr 11, 2021, 8:24 AM -0700, Gianfranco Cecconi ***@***.***>, wrote: I went back to BlackHole after some time without using it successfully, and realised that now I cannot use its first input because it outputs some kind of high-frequency distortion, as shown in the video here. I am using BlackHole16ch.v0.2.9 on macOS 10.15.7, and BlackHole is the first device in an aggregate device so to exchange inputs and outputs between Bitwig Studio (using the aggregate) and VCV Rack (using BlackHole). Specifically, I am sending the CV for an arpeggio using a Bitwig's "HW CV Instrument" to a synth simulated in VCV rack. Anything from output 2 upwards works correctly, but output 1 doesn't: I hear some kind of noise instead. If I also send the Bitwig CV output to it, it seems like its voltage is "summed" to it. Any ideas? Thanks. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[giacecco]

Thanks for getting back to me so quickly @devinroth. Using BlackHole in a different position in the aggregate gives me the same problem I described. Using BlackHole on its own, I can't record any noise coming from channel 1. What can I try next?

[devinroth]

I wonder if it’s related to a couple other bugs reported. Are you comfortable with Xcode? Devin Roth

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On Apr 11, 2021, 8:46 AM -0700, Gianfranco Cecconi ***@***.***>, wrote: Thanks for getting back to me so quickly @devinroth. Using BlackHole in a different position in the aggregate gives me the same problem I described. Using BlackHole on its own, I can't record any noise coming from channel 1. What can I try next? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe.

[giacecco]

Not really, but try pointing me to the instructions you've given to others.

Also, where may I download an older version, say 0.2.7?

I've also noticed something else that is very interesting. There is noise coming out of output 1 only if I send something to input 1.

... but if I send nothing to input 1, there is nothing coming out of output 1: