Re: iOS audio processing graph demonstration
Re: iOS audio processing graph demonstration
- Subject: Re: iOS audio processing graph demonstration
- From: Jamie Bullock <email@hidden>
- Date: Thu, 15 Dec 2011 09:25:28 +0000
Hi Tom,
This is really fantastic. As someone just starting out with the Apple Audio APIs, one difficulty I've found is a lack of meaningful open source code beyond Apple's own docs. I'm a fan of learn-by-example and AudioGraph is just perfect for that.
One question I have to ask: any relation to David Zicarelli of Cycling '74 fame?
best,
Jamie
--
http://www.jamiebullock.com
On 7 Dec 2011, at 14:40, tom zicarelli wrote:
> Hello,
>
> This is my first post to the list but I’m a long time listener.
>
> I’d like to share an open source project just completed, called audioGraph.
>
> http://zerokidz.com/audiograph
>
> video demo at: http://www.youtube.com/watch?v=ApJktPS02-Q
>
> the free-app version is awaiting review from app store.
>
> Have fun. thanks. tz
> ===================
> From the README file:
> ------------------------------
> iOS audio processing graph demonstration
>
> AudioGraph is a superset of Apple's MixerHost application.
>
> Features include:
>
> * Mono and stereo mic/line input
> * Audio effects including:
> o Ring modulator
> o FFT passthrough using the Accelerate vDSP framework.
> o Real-time variable pitch shifting and detection using STFT
> o Simple variable speed delay using a ring buffer
> o Recursive moving average filter with variable number of points
> o Convolution example with variable filter cutoff frequency
> * Stereo level meter
> * Synthesizer example - sine wave with an envelope generator
> * iOS 5 features (from Chris Adamson) including:
> o MIDI sampler audio unit
> o file player audio unit
> o audio unit effects
> * Runs on iPad, iPhone, and iPod-Touch
> * Basic audio session management including detection of input devices and available channels
> * Commented source code.
> * Original music by Van Lawton
> * Plus everything from MixerHost
>
> Requirements:
>
> * A device that runs iOS 5.x
> * Headphones.
>
> Instructions:
>
> Launch the app and press Play.
> Source code, documentation, support:
>
> http://zerokidz.com/audiograph
> email@hidden
>
> Credits:
>
> This project is derived from work by:
>
> Chris Adamson
> Stefan Bernsee
> Michael Tyson
> Stephen Smith
> Contributors to the Apple Core-Audio mailing list
> Contributors to stackoverflow.com
> Apple's IOS developer program
>
> Thank you.
>
> Tom Zicarelli
> 12/4/2011
>
>
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