Re: Finding the default built-in audio device
Re: Finding the default built-in audio device
- Subject: Re: Finding the default built-in audio device
- From: Dave Addey <email@hidden>
- Date: Mon, 11 Jul 2005 16:31:15 +0100
Hi Brad,
That's perfect - thanks :-)
Dave.
> From: Brad Ford <email@hidden>
> Date: Mon, 11 Jul 2005 08:22:14 -0700
> To: Dave Addey <email@hidden>
> Cc: <email@hidden>
> Subject: Re: Finding the default built-in audio device
>
> Dave,
>
> You can query the transport type property
> (kAudioDevicePropertyTransportType) to get a 4-char code like this:
>
> (from IOAudioTypes.h)
>
> enum {
> kIOAudioDeviceTransportTypeBuiltIn = 'bltn',
> kIOAudioDeviceTransportTypePCI = 'pci ',
> kIOAudioDeviceTransportTypeUSB = 'usb ',
> kIOAudioDeviceTransportTypeFireWire = '1394',
> kIOAudioDeviceTransportTypeNetwork = 'ntwk',
> kIOAudioDeviceTransportTypeWireless = 'wrls',
> kIOAudioDeviceTransportTypeOther = 'othr'
> };
>
> HTH.
> -Brad Ford
> QuickTime Engineering
>
> On Jul 11, 2005, at 4:59 AM, Dave Addey wrote:
>
>> Hi CA-API,
>>
>> I'm querying the list of available audio devices using the
>> AudioDeviceGetProperty API, and I need to find some way to know
>> when I've
>> come across the default built-in Mac device. This is because I
>> want to
>> present my own localised string in my application to present this
>> device for
>> selection.
>>
>> Is there a way that I can determine (based on the info available to
>> me from
>> getting name, property, uniqueid etc) that a given device is the
>> default
>> built-in audio device? I mean literally the built-in sound card,
>> not the
>> device currently selected as "Default" for output.
>>
>> Thanks for any help,
>>
>> Dave Addey.
>>
>>
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