Greetings, I have not been able to find a solution to this on the forum so I apologize if it has been covered. I am recording dj mixes through a Behringer Ultra-Curve Pro digital EQ that includes an optical output. I am running the optical output into a MacBook Pro running OSX Leopard. When recording analog sound through the built in mic or using a patch cable, Audacity records at normal speed. When recording digital signal through the optical, it records at double speed, with the position marker moving across the time scale at double speed. When I playback it is at normal speed and everything is effectively played at half speed. I have tinkered with the sampling rates and it has not seemed to affect it. An suggestions would be greatly appreciated.
Edit:
Ok, I kind of have it figured out but don't understand it. The digital output devise says its outputting at 96khz but Audacity reads the input as 44.1khz, however it records at over twice the normal rate. Once recorded, I can change the track rate from 44.1 to 96 and plays correctly. Any ideas as to why Audacity does not recognize the incoming signal as 96 and record as such. Kind or weird.
Recording at double speed. Playing back at normal speed
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Audacity 1.3.x is now obsolete. Please use the current Audacity 2.1.x version.
Mac 0S X 10.3 and earlier are no longer supported but you can download legacy versions of Audacity for those systems HERE.
Audacity 1.3.x is now obsolete. Please use the current Audacity 2.1.x version.
Mac 0S X 10.3 and earlier are no longer supported but you can download legacy versions of Audacity for those systems HERE.
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kozikowski
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- Joined: Thu Aug 02, 2007 5:57 pm
- Operating System: macOS 10.13 High Sierra
Re: Recording at double speed. Playing back at normal speed
Do you have QuickTime Pro?
QuickTime Pro will allow you to record audio and/or video from the standard input devices. I'd be interested in what those files sound like. I think you can do this in Garage Band, too, but I know it's not straightforward there and I've never done it.
Koz
QuickTime Pro will allow you to record audio and/or video from the standard input devices. I'd be interested in what those files sound like. I think you can do this in Garage Band, too, but I know it's not straightforward there and I've never done it.
Koz
Re: Recording at double speed. Playing back at normal speed
Try setting the "Default Sample Rate to 96kHz if you've not got it set to that already. ("Edit > Preferences > Quality" )
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)
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kozikowski
- Forum Staff
- Posts: 69384
- Joined: Thu Aug 02, 2007 5:57 pm
- Operating System: macOS 10.13 High Sierra
Re: Recording at double speed. Playing back at normal speed
Another possibility is to trash the Audacity preferences file and make it start over from First Birthday at the next startup.
Trash Mac Audacity Preferences
/SystemDrive/Users/koz/Library/Preferences/audacity Preferences
It's not unheard of for digital services to have a conflict when they connect to each other. "I''m going to send at 96 KHz!" And at the other end..."I'm receiving at 44.1 KHz!," and neither one is listening at quite the right time.
Koz
Trash Mac Audacity Preferences
/SystemDrive/Users/koz/Library/Preferences/audacity Preferences
It's not unheard of for digital services to have a conflict when they connect to each other. "I''m going to send at 96 KHz!" And at the other end..."I'm receiving at 44.1 KHz!," and neither one is listening at quite the right time.
Koz