Re: How to configure AudioConverter to write VBR?
Re: How to configure AudioConverter to write VBR?
- Subject: Re: How to configure AudioConverter to write VBR?
- From: Jens Alfke <email@hidden>
- Date: Sun, 8 Feb 2009 16:19:37 -0800
On Feb 8, 2009, at 4:05 PM, Stephen Davis wrote:
There is also the kAudioCodecPropertySoundQualityForVBR which you
should set instead of kAudioConverterCodecQuality when using
kAudioCodecBitRateControlMode_Variable. That's a little confusing
but the docs do talk about it.
Thanks for the info! Currently I'm setting both properties: first the
CodecQuality and then the SoundQualityForVBR [when VBR is on]. Is
there any harm to setting both?
Also, you need to set the target bit rate via
kAudioCodecPropertyCurrentTargetBitRate which I assume you are
already doing.
Actually I'm setting kAudioConverterEncodeBitRate. Does that
implicitly set CurrentTargetBitRate?
—Jens
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