Cycling 74 » Topic: divide spectrum in bands http://cycling74.com/forums/topic/divide-spectrum-in-bands/feed Wed, 19 Jun 2013 10:51:44 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/divide-spectrum-in-bands/#post-49040 <![CDATA[divide spectrum in bands]]> http://cycling74.com/forums/topic/divide-spectrum-in-bands/#post-49040 Tue, 09 Mar 2010 21:55:13 +0000 napopa Hi,
I need to make a patch which gets an audio stream in input and divides its spectrum in bands of a given range, which will be then played on separate channels.
I’m looking through a lot of documentation but I can’t really find the good direction to implement this.
Can anyone give me a hint?

Thanks

]]> http://cycling74.com/forums/topic/divide-spectrum-in-bands/#post-176182 <![CDATA[Re: divide spectrum in bands]]> http://cycling74.com/forums/topic/divide-spectrum-in-bands/#post-176182 Tue, 09 Mar 2010 22:04:31 +0000 Gregory Taylor eff eff eff bee (tilde)

]]> http://cycling74.com/forums/topic/divide-spectrum-in-bands/#post-176183 <![CDATA[Re: divide spectrum in bands]]> http://cycling74.com/forums/topic/divide-spectrum-in-bands/#post-176183 Sun, 14 Mar 2010 22:57:47 +0000 Barry Farrimond look at fft~ i’d say.

]]> http://cycling74.com/forums/topic/divide-spectrum-in-bands/#post-176184 <![CDATA[Re: divide spectrum in bands]]> http://cycling74.com/forums/topic/divide-spectrum-in-bands/#post-176184 Tue, 16 Mar 2010 06:18:54 +0000 napopa Hi,
thanks for your answers. I tried to do the job with fft but I got stuck with windowing size, overlappings etc, so I basically put a bunch of biquad filters in bandpass modality, centered on the frequencies I need.
For the moment it works more or less, but I’m quiet sure it’s far from being the best way to proceed…

Anyway, after that what I need to do is shifting each one of the bands I got to a given frequency range, let’s say 1000-2500 hz -> 250-625 hz for instance.
Is there a way to do that which allows me to clearly specify the exact range I want to get to after the shifting ?

Thanks

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