Filterbank object - unclear how to use with other modules. about aubio

[piem]

Hi @Craig-J ,

The filterbank object does take a spetrum as input, and gives you one energy output per filter.

You can find an example here: https://github.com/aubio/aubio/blob/develop/python/demos/demo_mel-energy.py

The onset object takes an audio frame and does the spectral analysis on its own.

To build an onset detector on each band of a filterbank, you could try using the peak picker object, or write a new one instead.

Let us know if that helps!

Best, Paul

[Craig-J]

I ended up using https://github.com/vinniefalco/DSPFilters to filter the
source audio samples then performing onset detection on those instead.
Thank you for the reply. :]

On Mon, 18 Apr 2016 at 12:34 Paul Brossier [email protected] wrote:

Hi @Craig-J https://github.com/Craig-J ,

The filterbank object does take a spetrum as input, and gives you one
energy output per filter.

You can find an example here:
https://github.com/aubio/aubio/blob/develop/python/demos/demo_mel-energy.py

The onset object takes an audio frame and does the spectral analysis on
its own.

To build an onset detector on each band of a filterbank, you could try
using the peak picker object, or write a new one instead.

Let us know if that helps!

Best, Paul

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Thank you. :]

• Craig