Re: [PD] making a perceptual spectrum analyzer

have a look if you can find some constant Q filter analyser or bar
filters, it can be a good starting point.

hope that helps

loic

On 11 oct. 09, at 21:26, mescalinum@gmail.com wrote:

how to make a perceptual spectrum analyzer?

the magnitude output of rfft~ seems to need some tweaking, like:

1. correcting amplitude of bins
2. spacing the bins from equally linearly spaced to equally

logarithmic spaced (for outputting a set of frequencies like: 62 125 250 500 1000 2000 4000 8000 16000)

does anyone already did it? in part 2), apart I don't know how to do it, I'm not sure if I need to sum up all the bins belonging to a frequency band, or to average
them ...?

~

---

Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list