GarageBand 10 48k option?

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GarageBand 10 48k option?

Check out the thread in my tangentially related bug report to Apple below (chronological top to bottom, bolding mine). The response from Apple suggests that there is a way to set GarageBand to 48k. Does anyone know how to do that? I couldn't find it anywhere.

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Will Rees19-Jan-2014 11:22 PM

Summary: I keep my MacPro's built-in digital out set to 48kHz because I have a lot of tunes in iTunes at 48kHz. When I run GarageBand 10, GarageBand changes the built-in digital out sample rate to 44.1kHz to match its native sample rate. That's fine and good that it does that. However, when I quit GarageBand, it should change the sample rate *back* to whatever it was before. It does not, however, so every time I quit GarageBand I have to manually go into Audio MIDI Setup and change the sample rate back to 48kHz by hand. This is a total pain and a lousy experience.

Steps to Reproduce:

1. Use Audio Midi Setup to set your default output device's sample rate to something other than 44.1kHz.

2. Open GarageBand 10.

3. Select some sort of template project so that you get all the way to the arrangement screen.

4. Quit GarageBand (doesn't matter if you save).

5. Go back to Audio Midi setup and look at the default output device's sample rate.

Expected Results: When an application makes *automatic* and *unstoppable* changes to an important (and hard to get to) system setting like the output sample rate, I expect that application or some system library to be smart enough to remember the user's setting and restore it on exit. I expect the sample rate to be whatever you set it to be in step 1. in the Steps to reproduce above.

Actual Results: The sample rate is 44.1kHz, which is what GarageBand set it to, not the value you set in step 1. in the Steps to reproduce above.

Version: GarageBand 10.0.1 OS 10.9.1 Build 13B42 Notes: It looks like Logic 9 does this as well.

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Apple Developer Relations21-Jan-2014 07:59 AM

Engineering has determined that this issue behaves as intended based on the following information:

You can change the samplerate in GarageBand to 48 kHz, if you want. Changing the samplerate on application quit is not a good idea at all, since it could have negative side effects on other apps accessing CoreAudio (i.e. clicks, distortion, disruption).

Please update your bug report to let us know if that resolves the issue for you.

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Will Rees21-Jan-2014 11:09 AM

Thanks so much for the quick and personalized response to my issue! Great system! Two things:

1. It would be great if I could set GarageBand to 48kHz, but looked through all the menus and preferences, read all the documentation I could find, and even did a number of searches on Google, Youtube, and Apple Discussions and found nothing about a 48k setting in GarageBand. Can you tell me where I can set GarageBand to 48k?

2. If changing the sample rate automatically on quit is "not a good idea at all, since it could have negative side effects on other apps accessing CoreAudio (i.e. clicks, distortion, disruption)" why does GarageBand automatically change the sample rate when it *opens*? Since GarageBand *already* changes it automatically on launch, saying it's a bad idea to change it on *quit* is a weak answer. If it is really that bad to change the sample rate automatically, why does GarageBand *already* do it? Do you see the inconsistent logic there? GarageBand's *current* behavior does the very thing engineering says is "not a good idea at all".

Posted on Jan 23, 2014 10:03 AM

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Answer 1

Jan 23, 2014 12:34 PM in response to Will Rees

Will Rees wrote:

You can change the samplerate in GarageBand to 48 kHz, if you want. Changing the samplerate on application quit is not a good idea at all, since it could have negative side effects on other apps accessing CoreAudio (i.e. clicks, distortion, disruption).

I would say that this statement is wrong. GarageBand is fixed to 44.1kHz Sample Rate and can only work with that Sample Rate.

WHen you set the Audio Device to Internal Output on GarageBand and Logic, then both app will fight over who is allowed to change the Sample Rate. You can have the Audio MIDI Setup window open to see that struggle.

From my test, it is not clear who the winner is. Depending on which app you start first

If you change the SR in Logic to 48kHz (whiile GB is open) then you can see in the AMS that the SR toggles between 44 and 48. sometimes it stays in 48, sometimes in 44kHz.

Even if I managed to force it to stay at 48kHz, GB will still record in 44kHz. It just seems to ignore the 48kHz 'mandate" from the system. I could veryfy that by checking the SR of the audio file I recoreded then in GB (it was 44kHz).

However, If Logic "puts its foot" down and imposes the 48kHz on GB, then GB starts to complain with the following error message. I interprete that "comflict" as: "I cannot do 48kHz, so please switch your external device, or whoever told that external devie to switch (Logic) to set it back to my beloved 44kHz"

So my verdict is: "GarageBand can do only 44.1kHz"

Issue number two:

About your problem of not automatically switching back when quitting GB. THe AMS app is just a user interface to control the Audio Drivers. Same as the System Preferences - Audio. Some parameters are available in both. Now you have two interfaces that can control the driver of that specific Audio Device.

WHen you open an audio app that has access to the driver, you are just adding another user interface. If Logic or GarageBand access the driver and change its parameter (i,e, SR), then that is a legitimate one time action. It doesn't have to be reverted when you quit the app that did the change to the driver (Logic doesn't do it either).

The whole thing gets problematic when one app changes to 48k and assumes it stays there, but another app changes it to 44kHz. It seems that some apps have some kind of lock or priority that won't allow other apps to change the setting while they are "in charge".

Long story short - it can get messy.

Hope that helps

Edgar Rothermich

http://DingDingMusic.com/Manuals/

'I may receive some form of compensation, financial or otherwise, from my recommendation or link.'

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Answer 2

Nov 8, 2017 10:20 PM in response to EdgarRothermich

Hey.

I’m brand new to recording in general, & have come across that exact error message about sample rate. Is there a way to change that so that I can continue tracking? One track away from finishing an entire song, & then this digital sludge, sample rate error message... Frustrating beyond belief. Any help is greatly appreciated. Thanx in advance

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