Re: Determining Pitch from Microphone
Re: Determining Pitch from Microphone
- Subject: Re: Determining Pitch from Microphone
- From: "Mark A. Richman" <email@hidden>
- Date: Tue, 27 Jan 2009 13:19:11 -0500
I'm targeting the iPhone, so I don't think Audio Units are an option. Should I be looking at Core Audio without Audio Units, Audio ToolBox frameworks, OpenAL, or something else?
Thanks again,
Mark
On Sun, Jan 25, 2009 at 6:46 PM, Marcelo Cicconet
<email@hidden> wrote:
Hi.
The first thing you need is a good pitch detection algorithm. I think
you can start by reading this article:
http://www.music.mcgill.ca/~savard/savard06overview.pdf
If you want to get the pitch in real time, Audio Units are the right
tool to use. /Developer/Examples/CoreAudio/Services/SonogramViewDemo
and WaveformViewDemo are good examples to learn about (after reading
Audio Unit Programming Guide, of course).
I've implemented some Audio Units for audio analysis purposes. This is
the address: http://w3.impa.br/~cicconet/thesis/audio_analysis_units/
I hope Tuner Unit and Cepstrum Unit will help you choose the pitch
detection algorithm.
Regards.
Marcelo C.
On Sun, Jan 25, 2009 at 1:16 PM, Mark A. Richman <
email@hidden> wrote:
> I am getting my feet wet with Mac programming, and I'd like to start with a
> simple app that determines the pitch of the input coming off the microphone
> in realtime. Where should I start?
>
> Thanks,
> Mark
>
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www.marcelocnt.com
www.impa.br/~cicconet
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