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CQT-FW download for Windows

Free download CQT-FW Windows app to run online win Wine in Ubuntu online, Fedora online or Debian online

This is the Windows app named CQT-FW whose latest release can be downloaded as CQT-FW_v0.1.zip. It can be run online in the free hosting provider OnWorks for workstations.

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CQT-FW


DESCRIPTION

CQT-FW(Constant Q transform with Fixed length Window) is a time-frequency transform for multiple pitch recognition in audio signals(songs). The transform CQT(Constant Q Transform) provide analisys frequencies in a exponencial way, like music does, but it have problems with the time resolution. In CQT-FW we have the same frequency resolution as CQT, but with fixed length windows in time, what leads to a constant time resolution as well. And more, time and frequency resolution are not dependent like in CQT end DFT transforms. We also propose a post processing witch eliminate the high order harmonics, leaving only the fundamental frequencies. The transform got good results in a good range of frequencies, but still have problems in low frequencies.



Programming Language

MATLAB


Categories

Analysis

This is an application that can also be fetched from https://sourceforge.net/projects/cqtfw/. It has been hosted in OnWorks in order to be run online in an easiest way from one of our free Operative Systems.


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