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Re: Alesis Protrack for Line Outs
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Re: Alesis Protrack for Line Outs

  • Subject: Re: Alesis Protrack for Line Outs
  • From: Tony Guetta <email@hidden>
  • Date: Mon, 16 Nov 2009 15:02:18 -0800
Hi Hamilton,

Which Audio Session category is your application using?  If it's kAudioSessionCategory_PlayAndRecord, what happens if you try a playback-only category, e.g. kAudioSessionCategory_MediaPlayback?  Does the line-out of the device function then?

Tony


>>>>>> I'm trying to debug why the Alesis ProTrack for iPod and iPhone can't play through the line outputs. It's a bit hard to debug because the protrack doesn't have a USB port, so I have to log everything. When I plug the iPod touch 3rd Gen into the protrack, it seems the Property Listener is called twice in succession, first with "NewDeviceAvailable" and "Speaker" as the old and new route, and then immediately again with "CategoryChange" and "LineOut" as the old route and "Speaker" as the new route. I never get "LineOut" as the new route. The log is below. Does it have anything to do with the exceptions thrown after the microphone arrives? Happens on iPods and iPhones alike. Thanks for any input.
>>>>>>
>>>>>> Hamilton
>>>>>>
>>>>>> email@hidden
>>>>>> http://www.harmonicdog.com
>>>>>>
>>>>>>
>>>>>> Fri Nov 13 15:16:13 unknown iapd[46] <Warning>: Microphone arrived
>>>>>> Fri Nov 13 15:16:14 unknown mediaserverd[14906] <Notice>: 15:16:14.292 <vad> EXCEPTION: VirtualAudio_Device.cpp[2415]: GetActivePortCount(): kVirtualAudioObjectRoutingNotSupportedError: "routing not supported."
>>>>>> Fri Nov 13 15:16:14 unknown mediaserverd[14906] <Notice>: 15:16:14.295 <vad> EXCEPTION: VirtualAudio_Device.cpp[2498]: GetActiveNonQuiesceablePortCount(): kVirtualAudioObjectRoutingNotSupportedError: "routing not supported."
>>>>>> Fri Nov 13 15:16:14 unknown mediaserverd[14906] <Notice>: 15:16:14.297 <vad> EXCEPTION: VirtualAudio_Device.cpp[2415]: GetActivePortCount(): kVirtualAudioObjectRoutingNotSupportedError: "routing not supported."
>>>>>> Fri Nov 13 15:16:14 unknown mediaserverd[14906] <Notice>: 15:16:14.320 <vad> EXCEPTION: VirtualAudio_Device.cpp[2415]: GetActivePortCount(): kVirtualAudioObjectRoutingNotSupportedError: "routing not supported."
>>>>>> Fri Nov 13 15:16:14 unknown mediaserverd[14906] <Notice>: 15:16:14.324 <vad> EXCEPTION: VirtualAudio_Device.cpp[2498]: GetActiveNonQuiesceablePortCount(): kVirtualAudioObjectRoutingNotSupportedError: "routing not supported."
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: ----------------------------- PropertyListener -----------------------------
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: AudioRouteChange
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: Reason: NewDeviceAvailable
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: Old AudioRoute: Speaker
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: New AudioRoute: Speaker
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioComponentInstanceDispose)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: Getting Input Availability: (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: AudioCategory -> PlayAndRecord: (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: AudioSessionSetActive(true): (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: Getting Input NumberChannels: 2 (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: ----------------------------- initializeRIO -----------------------------
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioComponentInstanceNew)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kInputBus recording 1)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kOutputBus playback 1)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kInputBus StreamFormat)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: AudioStreamBasicDescription  2 ch,  44100 Hz, 'lpcm' (0x0000000C) 16-bit little-endian signed integer
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kOutputBus StreamFormat)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: AudioStreamBasicDescription  2 ch,  44100 Hz, 'lpcm' (0x0000002C) 16-bit little-endian signed integer, deinterleaved
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kInputBus SetInputCallback)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kOutputBus SetRenderCallback)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kInputBus ShouldAllocateBuffer flag = 0)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: (AudioUnitInitialize)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: ----------------------------- setBufferSize -----------------------------
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: Setting PreferredHardwareSampleRate to: 44100.000000 (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: 0 - Setting PreferredHardwareIOBufferDuration to: 0.011610 (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: 0 - Getting CurrentHardwareIOBufferDuration (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:14 unknown MultiTrack[15770] <Warning>: 0 - GOT IT! Hardware Sample Rate (44100.000000) Buffer Duration (0.011610)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioOutputUnitStart)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: ----------------------------- PropertyListener -----------------------------
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: AudioRouteChange
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: Reason: CategoryChange
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: Old AudioRoute: LineOut
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: New AudioRoute: Speaker
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioComponentInstanceDispose)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: Getting Input Availability: (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: AudioCategory -> PlayAndRecord: (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: AudioSessionSetActive(true): (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: Getting Input NumberChannels: 2 (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: ----------------------------- initializeRIO -----------------------------
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioComponentInstanceNew)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kInputBus recording 1)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kOutputBus playback 1)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kInputBus StreamFormat)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: AudioStreamBasicDescription  2 ch,  44100 Hz, 'lpcm' (0x0000000C) 16-bit little-endian signed integer
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kOutputBus StreamFormat)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: AudioStreamBasicDescription  2 ch,  44100 Hz, 'lpcm' (0x0000002C) 16-bit little-endian signed integer, deinterleaved
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kInputBus SetInputCallback)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kOutputBus SetRenderCallback)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioUnitSetProperty kInputBus ShouldAllocateBuffer flag = 0)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioUnitInitialize)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: ----------------------------- setBufferSize -----------------------------
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: Setting PreferredHardwareSampleRate to: 44100.000000 (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: 0 - Setting PreferredHardwareIOBufferDuration to: 0.011610 (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: 0 - Getting CurrentHardwareIOBufferDuration (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: 0 - GOT IT! Hardware Sample Rate (44100.000000) Buffer Duration (0.011610)
>>>>>> Fri Nov 13 15:16:15 unknown MultiTrack[15770] <Warning>: (AudioOutputUnitStart)
>>>>>> Fri Nov 13 15:16:18 unknown MultiTrack[15770] <Warning>: ----------------------------- AUAudio3 start -----------------------------
>>>>>> Fri Nov 13 15:16:18 unknown MultiTrack[15770] <Warning>: AudioSessionSetActive(true): (kAudioSessionNoError)
>>>>>> Fri Nov 13 15:16:18 unknown MultiTrack[15770] <Warning>: (AudioOutputUnitStart)
>>>>>> Fri Nov 13 15:16:18 unknown MultiTrack[15770] <Warning>: moveAndPlayRequestFilled
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 >Alesis Protrack for Line Outs (From: Hamilton Feltman <email@hidden>)

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