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Re: rendering output to a file
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Re: rendering output to a file


  • Subject: Re: rendering output to a file
  • From: "tahome izwah" <email@hidden>
  • Date: Thu, 22 May 2008 08:10:14 +0200

Try writing to a CAF file first to see if the problem isn't somewhere
else - CAF is a container that supports all of the CoreAudio
encodings. For AIFF you will probably want to use Linear PCM.

HTH
--th

2008/5/22 Ashley Allen <email@hidden>:
> Hi,
>
> I have an AUGraph of AUAudioFilePlayer units connected to an AUStereoMixer
> connected to the default output device. I have added a render callback to
> the output device that uses the ExtAudioFile API to write rendered audio to
> disk. The list below shows the supported writable file types and the
> supported encoding formats on my system.
>
> I keep getting an error ExtAudioFileCreateNew FAILED! 'fmt?'. I think its
> complaining about the encoding format. I want to create an *.aiff file. What
> do I specify for an encoding format ID given the list below? Is there a
> matrix of file types and encodings?
>
> Thanks,
> Ashley
>
> Supported Writable FileTypes
> AIFC
> AIFF
> MPEG Layer 3
> NeXT/Sun
> Sound Designer II
> WAVE
> AC3
> AAC ADTS
> Apple CAF File
> MPEG4 Audio
> MPEG4 Audio
>
> Supported EncodeFormatIDs:
> MACE 3:1
> MACE 6:1
> QDesign Music 2
> Qualcomm PureVoice\u2122
> AAC
> Apple Lossless
> A-Law 2:1
> IMA 4:1
> Linear PCM
> AMR Narrowband
> \u03bc-Law 2:1
>
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References: 
 >rendering output to a file (From: Ashley Allen <email@hidden>)

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