Re: Using core audio for export
Re: Using core audio for export
- Subject: Re: Using core audio for export
- From: William Stewart <email@hidden>
- Date: Tue, 12 Oct 2010 17:57:32 -0700
Have a look at the PlaySequence sample code. It has an option for writing the output of a graph to an audio file
Bill
On Oct 8, 2010, at 12:33 PM, Paul Slocum wrote:
> I haven't done this, but I think you set up your mixer but don't hook
> it up to anything, and then call the AudioUnitRender function
> repeatedly to render the mixer's audio.
>
> -paul
>
> On Fri, Oct 8, 2010 at 7:13 AM, Zulfiqar Malik
> <email@hidden> wrote:
>> Hi,
>>
>> I am using the AUGraph API for realtime audio playback and I want to use the
>> same system for exporting because it provides me with all the multi-channel
>> mixing capabilities that I need.
>>
>> However, there are two things that I need to consider for exporting:
>>
>> 1. I don't want the audio coming out of the speakers while exporting. Is
>> there an output device that functions like the HAL output device but doesn't
>> actually play anything out of the speakers i.e. tailor made for exporting?
>> 2. The AUGraph setup that I have plays the audio in realtime, however while
>> exporting I'd like to export as quickly as possible which may mean faster
>> than realtime if the computer can handle it. Is this possible? How?
>>
>> Thanks in advance.
>>
>> --
>> Zulfiqar Malik
>> The Foundry, 1 Wardour Street, London, W1D 6PA, UK
>> Tel: +44 (0)20 7434 0449 - Fax: +44 (0)20 7434 1550
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>>
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>>
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