Spectrogram Configuration

Spectrograms can be configured in a variety of specifications. Some frequently selected configurations are such as shown before:

Wide-Band-, Speech Spectrograms

In order to create a Wide-Band-Spectrogram with fundamental frequency contour measurement and formant extraction data select FFT-Spech-FOR from the STx-function tree and adjust the settings as shown.

The user is encouraged to specify the spectrogram parameters (frequency resolution, hop size etc.) and a spectrogram configuration found to be approriate to his sound material under current consideration. Both configurations shown above are just typical "Narrow-Band" for overview in musical signals and "Broad-Band" for speech analysis. Nevertheless STx doesn't the user to be restricted to any pre-configurations.

Cumulative Spectrogram and Parameter Processing

• Once you have defined a spectrogram configuration which has proven useful, please copy this configuration in the STx-functions tree (right mouse click) and rename it according to your preference. STx will remember it as long as you prefer it. This procedure will enable you to produce spectrograms exactly with parameter settings you prefer and intend to perform in long term reliable comparisons.

• On the other hand moderate changes of spectrogram parameters, such as frequency resolution from Narrow (22 Hz) to Wide Band (90 Hz) can be implemented in the copied configuration without affecting the original spectrogram setup.