Re: IOS: is there a way to access songs from ITunes in LPCM?

Subject: Re: IOS: is there a way to access songs from ITunes in LPCM?
From: Chris Adamson <email@hidden>
Date: Fri, 17 Apr 2015 14:08:16 -0400

Use the MediaPlayer framework to get the song from the library, get its MPMediaItemPropertyAssetURL metadata property, pass that to the AVFoundation APIs (specifically, to AVAssetReader).

In a blog I wrote years ago <http://www.subfurther.com/blog/2010/12/13/from-ipod-library-to-pcm-samples-in-far-fewer-steps-than-were-previously-necessary/>, you can see how to use AVFoundation to do a format conversion to LPCM.

If you want to work on those buffers in memory with Core Audio, just take the CMSampleBuffers as they’re read, get their CMBlockBuffers, and then use the helper functions that convert block buffers to AudioBufferLists or AudioPacketStreamDescriptions.

—Chris

On Apr 17, 2015, at 1:49 PM, Andy Davidson <email@hidden> wrote:

Is there a way I can import songs or some how access songs that a user had downloaded to their device? I want to do some filtering and other processing on the raw audio

Thanks

Andy
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>IOS: is there a way to access songs from ITunes in LPCM? (From: Andy Davidson <email@hidden>)

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