Re: audio processing iphone
Re: audio processing iphone
- Subject: Re: audio processing iphone
- From: Tony Sheng <email@hidden>
- Date: Wed, 12 Aug 2009 10:05:00 +0100
thanks for replying. Steven you mentioned offline reader using Audio
Queue Service. I wonder if we could use this for real-time rendering.
>From the programming guide from apple, it should do this. since we
could access the buffer, we could manipulate it before it goes to play
out.
I also imagine if we could copy the files from ipod library and make
that file would access by Audio Queue Service.
Cheers,
Tony
2009/8/12 Tony Sheng <email@hidden>:
> thanks for replying. Steven you mentioned offline reader using Audio Queue
> Service. I wonder if we could use this for real-time rendering. From the
> programming guide from apple, it should do this. since we could access the
> buffer, we could manipulate it before it goes to play out.
>
> I also imagine if we could copy the files from ipod library and make that
> file would access by Audio Queue Service.
>
> Cheers,
> Tony
> 2009/8/11 Chris Adamson <email@hidden>
>>
>> Won't work because there's no way to get the paths to the iPod library
>> items, and they're outside your app's sandbox anyways.
>>
>> Access to iPod audio has been discussed extensively on
>> devforums.apple.com. Consistent response from Apple is "file a feature
>> request".
>>
>> Sent from my iPhone
>>
>> On Aug 11, 2009, at 12:20 PM, Tony Sheng <email@hidden>
>> wrote:
>>
>>> thanks for replying. but is it possible to access the decoded PCM
>>> audio data from AVAudioPlayer? and is that possible AVAudioPlayer
>>> playback the sound file that referenced by media item picker ?
>>>
>>> thanks
>>> tony
>>>
>>> 2009/8/11 Chris Adamson <email@hidden>:
>>>>
>>>> No, because the MPMusicPlayerController doesn't provide access to the
>>>> decoded PCM audio data, or paths to the original song files.
>>>>
>>>> -Chris
>>>>
>>>> Sent from my iPhone
>>>>
>>>> On Aug 11, 2009, at 11:48 AM, Tony Sheng <email@hidden>
>>>> wrote:
>>>>
>>>>> Hi everyone:
>>>>>
>>>>> Ask a general question, is possible to write a audio application on
>>>>> iphone which process the audio (for example reverb effect in real time
>>>>> ) when you playback and that audio is from a sound file from ipod
>>>>> library. quite much like a audio plug-in working for Garageband or
>>>>> Logic?
>>>>>
>>>>> thank you
>>>>>
>>>>> Tony
>>>>
>
>
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden