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Sample Rate


Leviset

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Does anyone know the maximum sample rate you can use in Logic if you are using Core Audio ? You only seem to be able to change it when you bounce an audio track. I tested an audio track and was able to save it at 192 KHz (the file size was 4 X bigger than saving it at 48 KHz). Is Core Audio a piece of software or is there a true 192/24 audio hardware card inside my iMac. Can you alter the sample rate of Core Audio before you start recording?

I'm confused?

Leviset

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Thanks - but just out of interest what exactly is my audio interface within my iMac G5 Intel Core 2 Duo if I were to record in via the 1/8" jack plug rather than my Mbox 2 which can only reach 48 KHz sample rate?

Leviset

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Just checked the same on IMac both line input & internal microphone can be 16/20 or 24 bit and 44,1, 48 & 96 KHz sample rate - better sample rate than my Mbox 2. I also run ProTools on my iMac (in a sort of scratch pad way as I have a full studio setup of ProTools on another computer) and I believe the Mbox 2 has been causing all sorts of problems with Logic (and other applications) as my iMac has been locking up several times a day. So I have disconnected the Mbox2, hence the questions about Core Audio, and so far everything has been stable.
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So are there prices!! Its just that I'm old school and have come up using ProTools in studios (and on Tape) and when I finally built my home studio I put in ProTools on a Core Quad PC running XP. Actually that is a rock solid system as I have never had it connected to the Internet or done any Windows updates. I recently got a second hand Digi 002 for that system and decided to put the Mbox 2 on my iMac which looks like it might not have been the cleverest of my ideas. I'll leave it disconnected - every error message after each crash that I sent to Apple had something about Digidesign Mbox 2 driver in the text. I've recently done a year at a studio doing Music Technology, where we started using Logic 7. I was so blown away with what the software could do I used my educational discount to get the iMac and Logic Studio in February.
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I suggest reading a bit more about sample rates - higher is sometimes just overkill, depending on how the interface is designed. It's also common for a cheap converter (like a built-in audio input on almost any computer) running at 96KHz to sound worse than a nicer one running at 44.1 or 48.
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