Re: Bug? Clicks while recording audio (In) from MIDI (out)
Re: Bug? Clicks while recording audio (In) from MIDI (out)
- Subject: Re: Bug? Clicks while recording audio (In) from MIDI (out)
- From: Josh Whitver <email@hidden>
- Date: Thu, 20 Feb 2003 12:12:21 -0600
Just a quick note to say that this bug remains in 10.2.4. I'm sure it's not
an electrical interference issue as the problem goes away if I do the same
thing (record audio coming in from my synth, which is receiving MIDI data
from the computer simultaneously) booted in Mac OS 9. I'd be interested in
knowing if someone with a similar setup (USB Fastlane MIDI interface, G4/400
Gigabit) experiences the same kinds of problems recording audio in from MIDI
out. Thanks!
>
This may sound a bit convoluted, but what I'm trying to do is really pretty
>
simple. I have a MIDI file of a Piano Concerto that I'm writing that I'm
>
trying to convert to a decent-sounding MP3 to post on my website.
>
>
I play the MIDI file out to my synth, and running the audio out from my synth
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back into the computer, recording the audio input with "Audio In", a
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freeware app.
>
>
This works, except for one thing. Every time there's a MIDI note event, I
>
get a strange click in the audio that's coming in. It's not from the synth,
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because the speakers on the synth don't register it. If I plug headphones
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into the keyboard (killing the internal speakers) and just monitor the sound
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on my computer speakers, there's the click, even if I turn the volume on the
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synth all the way down. It's like there's a chorus of tiny fingernails
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clicking away the rhythms of every part. I've put a short sample of this
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at:
>
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http://www.whitver.net/coreaudiobug.mp3
>
>
Part way through this sample, I turned the volume on the synth all the way
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down, yet the clicks remain. They've gotta be coming from CoreAudio.
>
Further proof of this comes from the fact that if I boot into Mac OS 9, the
>
clicks are gone. I'm on a Gigabit G4/400, synth is a Yamaha PSR-520 hooked
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up via USB FastLane MIDI interface.
--
Josh Whitver
email@hidden / email@hidden
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