Convert 48000 to 44100 without change in pitch?

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Level 1

56 points

Convert 48000 to 44100 without change in pitch?

I am trying to import a WAV into Logic that is 48000. Logic converts the sample rate to 44100, what I normally use, but the pitch changes which is impossible to work with. Is there a way to change this 48000 to 44100 while maintaining the same pitch? Some way to do it with iTunes?

The situation is that I have some files that I have recorded at the lower sample rate and some recorded at another studio at the higher sample rate. I need to import the higher sample rate file into Logic so I can create some stem files for a mastering session this weekend.

TIA!

Mac OS X (10.4.6)

Posted on Jun 12, 2009 9:18 AM

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Answer 1

Best reply

Caramby

Level 4

1,523 points

Jun 12, 2009 10:09 AM in response to Franz Liszt

You shouldn't get a change in pitch when you convert properly.

• Select the audio regions pointing to the desired audio file in the Arrange area, then choose +Audio > Convert Regions to New Audio Files+ in the local Arrange area menu (or use the +Convert Regions to New Audio Files+ key command; default: Option-Command-F).

The part of the audio file spanned by the audio region is converted to a new audio file.

• Select the audio files in the Audio Bin, then choose +Audio File > Copy/Convert File(s)+ in the local Audio Bin menu (or use the +Copy/Convert File(s)+ key command).

If you are using one of the above methods & the pitch is still changing, let me know. Meanwhile, I'm just going to double-check…

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Answer 2

Caramby

Level 4

1,523 points

Jun 12, 2009 10:18 AM in response to Franz Liszt

Here's the double-check.

You can turn off automatic conversion; perhaps this is what you have done.

An unconverted 48kHz file will be played at the wrong pitch if automatic conversion is switched off. Perhaps you are then not converting it but just copying it. Or perhaps the files are not correctly tagged with the right sample rate information, leading to faulty or no conversion of rate.

The project’s sample rate determines the number of samples Logic Pro uses for audio playback. When you add or record audio files to your project, the sample rate of these files is automatically matched to the project sample rate. Important: The +“Convert audio file sample rate when importing”+ project setting must be active for automatic sample rate matching. You can turn on this setting in the +File > Projects Settings > Assets+ pane.

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Answer 3

Franz Liszt Author

Level 1

56 points

Jun 12, 2009 10:38 AM in response to Franz Liszt

Hey thanks man.

Well, I opened a new session to start everything off right. Dragged all of my 44100 stems in and then dragged the 48000 stem in. When I drug the 48000 stem into Logic from the desktop the window appears that says something along the lines of "Converting Sample Rate" or something. This is what I did before and the pitch center of the 48000 stem ended up going from E down to almost Eb. This time when I dragged the file into Logic I got the "Sample Rate Conversion" window but the pitch did not change. No clue why...

I haven't changed any of my global prefs or anything. Weird.

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