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   -> Volume 6, Issue 8

Software: Time-frequency analysis
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"Paul Stringer" (

PostPosted: Wed Aug 06, 1997 9:51 am    
Subject: Software: Time-frequency analysis
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#6 Software: Time-frequency analysis

I would like to announce new software which is available for
performing multiresolution time-frequency analysis on time-domain
signals using wavelets and wavelet packets. The software is called
WavePak and is available for PCs on Windows 3.1x and Windows 95

The following functionality is provided:-
- 17 real (one-dimensional) orthogonal wavelets
- wrap and zero-pad process methods
- wavelet basis
- adaptive wavelet packet basis
- automatic or manual steering between time / frequency resolution
- up to 32K samples can be processed in one transform
- output is calibrated to a linear Hz scale
- scaling options (e.g. lin / log, mag / power)
- graphical representation of the time-frequency plane (colour or gray-scale)
- "wizard" mode for beginners

There is a tutorial on "How Wavelets Work" intended for wavelet
beginners which comes with the software. This tutorial covers basic
aspects of continuous and discrete wavelet theory and implementation,
and is designed to help users understand the software.

Signals can be imported by a wide range of methods (e.g. WAV files, MS
Excel) or can be generated by hardware. Other DSP and data
visualisation tools are also available.

For more info, contact:

Sales: Alan Benetts, <>
Technical: Toby Sharp, <>
All times are GMT + 1 Hour
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