Nuance Vocalizer Developer's Guide - Avaya Support

Prosody and volumeEmphasisProsody, rate, anddurationProsody, pitch, andphonemeProsody and contourMisapplied elements We can change the volume ofranges of words .We can also apply emphasis, for example: Do you like this one, ordo you prefer this one.Alternatively, we can add emphasis using a combination of volumepitch and duration markup flags. Forexample, how do you like this one.We can change the duration of an utterance by using the rate and duration flags. For example, This sentence is spoken 50% slower thanusual . Whereas, this sentenceis exactly 4 seconds in duration .We can make absolute and relative pitch changes to the speech, forexample, this sentence is spoken with anaverage frequency of 170 hertz . This sentence's average frequency has been by 20 Hertz .An arbitrary pitch contour can be applied using the contour flag. For example, this sentenceinterpolates a relative frequency change from 30 hertz belownormal at the beginning to 30 hertz above normal at theend.Multiple target frequencies can be specified across the range ofthe contour flag, allowing an unskilled user to easily createprosodic monstrosities. For example, question type intonationscan be badly applied . However,in skilled hands and applied responsibly, these flags provide auser with an impressive level of prosodic control.38Nuance Vocalizer 3.0Developer’s Guide