Note
Please see Azure Cognitive Services for Speech documentation for the latest supported speech solutions.
PromptBreak Enumeration
Enumerates values for intervals of prosodic separation (breaks) between word boundaries.
Namespace: Microsoft.Speech.Synthesis
Assembly: Microsoft.Speech (in Microsoft.Speech.dll)
Syntax
'Declaration
Public Enumeration PromptBreak
'Usage
Dim instance As PromptBreak
public enum PromptBreak
Members
| Member name | Description | |
|---|---|---|
| None | Indicates no break. | |
| ExtraSmall | Indicates an extra small pause. | |
| Small | Indicates a small pause. | |
| Medium | Indicates a medium pause. | |
| Large | Indicates a large pause. | |
| ExtraLarge | Indicates an extra large pause. |
Remarks
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.
Examples
The following example builds a prompt containing two sentences separated by a break and sends the output to a WAV file for playback.
using System;
using Microsoft.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.
synth.SetOutputToWaveFile(@"C:\test\ShowTimes.wav");
// Create a SoundPlayer instance to play the output audio file.
System.Media.SoundPlayer m_SoundPlayer =
new System.Media.SoundPlayer(@"C:\test\ShowTimes.wav");
// Build a prompt with two sentences separated by a break.
PromptBuilder builder = new PromptBuilder(
new System.Globalization.CultureInfo("en-US"));
builder.AppendText(
"Tonight's movie showings in theater A are at 5:45, 7:15, and 8:45");
builder.AppendBreak(PromptBreak.Medium);
builder.AppendText(
"Tonight's movie showings in theater B are at 5:15, 7:15, and 9:15");
// Speak the prompt and play back the output file.
synth.Speak(builder);
m_SoundPlayer.Play();
}
Console.WriteLine();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
}
}