In order to achieve high speed measurements of acoustic parameters needed for evaluating pathological voice, an integrated voice analyzer (IVA) has been developed by using a digital signal processor and a general purpose microprocessor. By utilizing a personal computer as a controller of the IVA, a versatile system can be constructed for the acoustic evaluation of pathological voice.

An improved algorithm of autocorrelation pitch detection is presented. Preliminary experiments show that the algorithm can considerably reduce the errors caused by the ordinary autocorrelation pitch detector.