wave_viewer

Wave Viewer is a Matlab-based analysis tool for speech waveforms.

viewer_end_state = wave_viewer(y, [options])

Wave Viewer takes a signal y and the following optional arguments:

• fs sampling rate (default: 11025)
• ms_framespec_gram (default: broadband)
• ms_framespec_form (default: narrowband)
• nfft number of FFT points/bins (default: 4096)
• nlpc number of LPC coefficients (default: 15)
• nformants number of formants to track (default: 3)
• preemph pre-emphasis factor (default: 0.95)
• pitchlimits low and high frequency cutoffs for pitch tracking (default: [50 300])
• ampl_thresh4voicing voicing threshold (default: 0 (don't apply a voicing threshold))

or a single argument sigproc_params, a parameter struct from the viewer_end_state returned by the function.

Wave Viewer requires a few functions from Matlab's Signal Processing Toolbox (zp2ss and abcdchk).

v0.1
June 2012
UCSF Speech Neuroscience Lab