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Re: playback on simulator vs. on device
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Re: playback on simulator vs. on device


  • Subject: Re: playback on simulator vs. on device
  • From: learnfromforum <email@hidden>
  • Date: Sat, 26 Sep 2009 08:42:47 -0700 (PDT)

Hi,

I found the cause of my problem. I used kAudioUnitSubType_VoiceProcessingIO unit instead of kAudioUnitSubType_RemoteIO unit. And this VoiceProcessingIO unit has the echo suppression function which would not let my recored voice repeated to my speaker. But anyway, the simulator and device behave differently in this setting.

Tu


From: Chris Adamson <email@hidden>
To: learnfromforum <email@hidden>
Cc: CoreAudio Mailing List <email@hidden>
Sent: Friday, September 25, 2009 10:01:04 PM
Subject: Re: playback on simulator vs. on device

What's the format (as expressed by an AudioStreamBasicDescription) that you're using?  Possible that you're using a format that doesn't work on the device hardware (e.g., floating-point samples in PCM).

Are you checking the OSStatus returned from every Core Audio call to ensure you're not getting an error somewhere?

--Chris

On Sep 25, 2009, at 1:54 PM, learnfromforum wrote:

I can play this very well on the simulator but on device having problem. All callback functions work correctly, but no sound produced.

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  • Follow-Ups:
    • Re: playback on simulator vs. on device
      • From: William Stewart <email@hidden>
References: 
 >playback on simulator vs. on device (From: learnfromforum <email@hidden>)
 >Re: playback on simulator vs. on device (From: Chris Adamson <email@hidden>)

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