Some other pages on our site you may enjoy:
WASP - Record & display speech signals
WASP is a simple program to record speech signals and to display a spectrogram and pitch track. More information.
EFxHist - Fundamental Frequency Histograms
EFxHist is a program to analyse joint speech and laryngograph recordings. EFxHist locates each pitch period in the laryngograph waveform and produces statistical analyses including distributions of fundamental frequency, closed-quotient, jitter and shimmer. More information.