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> Lots Of Crackles When Recording In Powerbook
camarao
posté lun. 16 mai 2005, 02:31
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Hi

I have a Powerbook 15" 1.67hz 512 mb ram and a 80gb 5400rpm hard drive and a Terratec Phase 24 firewire soundcard.
I have installed all my software ( Logic Pro 7.01 and Kontakt 2.01 ) and started to do some recordings.
I was using a loop in track 1 , a EVP 88 with a tape delay and nothing else. I recorded thru the digital ins a 24 bit stereo file coming from a 01V Yamaha digital mixer.
When I started to listen to the audio files ( 15 to 20 minutes )they were good in some places and terribly bad in others with lots of crackles.
Does the OSX run some kind of background application that was interfering with the recording process ? Are there any tips to fine tune OSX in a Powerbook for audio production ?
Are my Powerbook specs enough for this job or do I have to buy an external disk just to record a simple 24 bit stereo file ?

Thank you

Alex
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banevt
posté lun. 16 mai 2005, 07:26
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Its always a good idea to record your audio tracks on an external drive because the internal drive is 5400 RPM and a good firewire drive at 7200 RPM will definitely help. Another thing you can do is turn off the dock hiding and magnification and make your destop as simple as you can stand. I have tried this and it makes a difference. The way I heard it is that with OSX the all the little things like dock hiding and magnification take priority over your applications and can affect performance. In OS 9 you used to be able to set your memory allocation. Also you should check your playback buffer size. Is the audio crackling in the exact same places every time? If the crackling isn't in the same place every time it could mean that the audio you recorded is fine and your computer is just having trouble playing it all back which could be fixed later.
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