Re: "Spoken Podcast" setting for AAC
Re: "Spoken Podcast" setting for AAC
- Subject: Re: "Spoken Podcast" setting for AAC
- From: Stephen Davis <email@hidden>
- Date: Tue, 31 Jul 2012 17:29:52 -0700
It doesn't. It's a regular MPEG-4 AAC file whose source audio was pre-filtered before encoding. There is no file-format equivalent.
stephen
On Jul 31, 2012, at 4:32 PM, Rob Stenson wrote:
> Hello Core Audio,
>
> I've seen in the Import Settings menu in iTunes that there is an AAC setting called 'Spoken Podcast', and I'd like write an audio file on iOS with that setting (22.050 kHz with voice filtering, as the description states). Does anyone know how that 'Spoken Podcast' translates into an mFormatId in an AudioStreamBasicDescription? (Or is it simply a kAudioFormatMPEG4AAC with particular mFormatFlags being set?)
>
> Thanks!
> Rob Stenson
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