PromptBreak Enum


Enumerates values for intervals of prosodic separation (breaks) between word boundaries.

public enum class PromptBreak
public enum PromptBreak
type PromptBreak = 
Public Enum PromptBreak


ExtraLarge 5

Indicates an extra-large break.

ExtraSmall 1

Indicates an extra-small break.

Large 4

Indicates a large break.

Medium 3

Indicates a medium break.

None 0

Indicates no break.

Small 2

Indicates a small break.


The following example builds a prompt containing two sentences separated by a break and speaks the prompt to the default audio device on the computer.

using System;  
using System.Speech.Synthesis;  

namespace SampleSynthesis  
  class Program  
    static void Main(string[] args)  

      // Initialize a new instance of the SpeechSynthesizer.  
      using (SpeechSynthesizer synth = new SpeechSynthesizer())  

        // Configure the audio output.   

        // Build a prompt with two sentences separated by a break.  
        PromptBuilder builder = new PromptBuilder(  
          new System.Globalization.CultureInfo("en-US"));  
          "Tonight's movie showings in theater A are at 5:45, 7:15, and 8:45.");  
          "Tonight's movie showings in theater B are at 5:15, 7:30, and 9:15.");  

        // Speak the prompt.  

      Console.WriteLine("Press any key to exit...");  


The values in the PromptBreak enumeration represent a range of separation intervals (pauses) between word boundaries. The speech synthesis engine determines the exact duration of the interval. When a break is requested, one of these values is passed to the text-to-speech (TTS) engine, which contains a mapping between these values and the corresponding millisecond break values.

The value None represents the absence of a pause between word boundaries and can be used to remove a break where one would normally occur. The remaining values are listed in order of increasing durations for breaks.

Applies to

See also