Re: 2 small questions...
Re: 2 small questions...
- Subject: Re: 2 small questions...
- From: Samuel Kitono <email@hidden>
- Date: Mon, 24 Jan 2011 22:15:33 +0700
For question A:
Yes, you should use the generic output audio unit for offline rendering. All you have to do is just call AudioUnitRender function on this audio unit so that you do not have to wait 'real-time' to get the data samples. Check this guide page from apple
http://developer.apple.com/library/ios/#documentation/MusicAudio/Conceptual/AudioUnitHostingGuide_iOS/Introduction/Introduction.html for more information.
On a side note, do you need to use audio unit to convert your file? You can just use ExtAudioFile service to convert the audio format to what you need.
On Mon, Jan 24, 2011 at 8:39 PM, Frank Mantek
<email@hidden> wrote:
I know those are basic questions, but I am sure one of you fine folks here can find it in your hearts to give a pointer :) Googling is the answer to everything these days, but sometimes there is just too much info out there... Feel to tell me that my questions are to broad/unspecific etc.
Tia
Frank
On Jan 22, 2011, at 12:21 PM, Frank Mantek wrote:
> I am working on a content creation program for the iphone/ipad that allows users to create their own little songs, for a better word for it. There are 2 things i am wondering:
>
> a) to create a file based version of a song, i currently hook into the remoteIO delegate and record the output. That has the obvious drawback that the file creation is a real time event. I am wondering if i use the default output device, does that speed this up? rephrased: can i use the default output device to just create a .mp4 version of the audio output?
>
> b) I also like to offer sharing in the form of ringtones. I could not find any API yet to allow someone to create a ringtone or any other audio on the phone and directly import it into either ITunes or the correct place for ringtones etc. I do assume there is none? Currently i send the files to myself by mail, import them into itunes and sync again, but this is kind of backwards ....
>
> Tia
>
> Frank Mantek
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