Audio Processing

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Audio Processing

Postby kingcrowley » Wed Mar 17, 2010 5:07 pm

This is a general enquiry about Audio Processing (as i can't see much
in the Docs about it)

1) Can Android do tone generation? i.e. tones at different
frequencies? or is there an even easier way to do this?

2) Audio Analysis - Possible in Android? taking a signal and isolating
noise? or just figuring out frequency?

Any pointers/help would be great fully appreciated!
Thanks,

David
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Postby kamrenroder » Fri Mar 19, 2010 10:26 am

Hi freshman
Can Android do tone generation- Yes
This is a tone generator like the Oscillator app. you too can use it to talk like a robot by using this thing like a "talk box" like Peter Frampton and others. Put the speaker up to your mouth and let the sound travel into your mouth and out your lips just like the tube in a "talk box". Get it? Got it? good...
Can Android do tone generation?Yes
Free real-time audio analyser with 8 kHz spectral bandwidth. Display any sort of audio from the microphone as a coloured spectrogram. Identify environmental noise, search for annoying tones, view harmonic patterns of instruments and voices, analyse the frequency range of your speaker... .
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Postby kingcrowley » Fri Mar 19, 2010 12:12 pm

Any tips/resources to where to start to look at this stuff? (code examples or links to the Googles Docs) I have had a look but can't seem to find any books/sites about it

David
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Postby kingcrowley » Sat Mar 20, 2010 8:13 pm

After more wanderings around the internet, I have found too possible ways to do this at the moment,

or this http://code.google.com/p/android/issues/detail?id=3434 and not 100% sure this can do it in real time? anyone have any experience using AudioRecord?
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Re: Audio Processing

Postby xdebugx » Sun Aug 08, 2010 9:36 pm

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Re: Audio Processing

Postby pirat31337 » Tue Aug 17, 2010 6:51 pm

"Can Android do tone generation" - Yes, see android.media.ToneGenerator class
http://developer.android.com/reference/ ... rator.html
Is very simple to use :).
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