Re: Changing mSampleRate for an Audio File
Re: Changing mSampleRate for an Audio File
- Subject: Re: Changing mSampleRate for an Audio File
- From: "Asher Vander Heiden" <email@hidden>
- Date: Thu, 20 May 2004 20:57:41 +1000
Hey Bob,
I've already tried what you suggest.
The problem is that I get errors when I try to fill the Destination Audio
Fiie with the data from the Source Audio File. Why? because they are of
different formats I'm guessing?
At the moment I'm using the 'auprocess' with the 'ReverseOfflineUnit' and
the same thing happens. When I try to use different
AudioStreamBasicDescription for the Destination Audio Fiie and Source Audio
File it fails to accept this.
This is why I needed to change the mSampleRate of the Destination Audio Fiie
AFTER I have created the file and completed all the signal processing.
Thanks for your answer,
Asher
From: Bob Aron <email@hidden>
To: Asher Vander Heiden <email@hidden>
Subject: Re: Changing mSampleRate for an Audio File
Date: Wed, 19 May 2004 09:21:40 -0700
It sounds like you are not setting the AudioStreamBasicDescription
correctly when you create the new audio file. Are you using
AudioFileCreate() and passing it the ASBD describing your newly formatted
data? What format is the data that you are converting from and to?
bob aron
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On May 19, 2004, at 3:46 AM, Asher Vander Heiden wrote:
Hello,
Is it possible to change the 'sample rate' of an AudioFile, without using
the Audio Converter?
The reason for this is that I have been working on my own Sample Rate
Converter, which works on manipulating the Audio Stream of an existing
Audio File and saving the stream into a New file. So therefore the New
file that has been created has samples in the new sample rate, while the
AudioStreamBasicDescription, of the New file, displays the old sample
rate.
I'm finding it really difficult to manually change the value of
mSampleRate within the New files AudioStreamBasicDescription. Even if I
could do this I'm not quite sure that this is the only value that needs to
be changed within AudioStreamBasicDescription.
I would appreciate it if someone could tell me how this could be
done.......
I'm beginning to think that maybe it can't....
Please Help ....
Asher Vander Heiden
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