Microsoft Speech SDK

Speech Automation 5.1

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Interface: ISpeechPhraseInfo

AudioSizeBytes Property

The AudioSizeBytes property returns the size of audio data in bytes for this phrase.

AudioSizeBytes is directly tied to the input audio format. AudioSizeBytes increases as the quality of the format increases (and in doing so, requires more bytes). However, it is possible that the application needs the retained audio in a format different from the input audio stream (perhaps for lower-quality persistence, for example). If an application scales the audio, RetainedAudioSizeBytes will change, but not AudioSizeBytes.

Syntax

Set:	(This property is read-only)
Get:	Long = ISpeechPhraseInfo.AudioSizeBytes

Parts

ISpeechPhraseInfo

The owning object.

Long

Set: (This property is read-only)
Get: A Long variable containing the size of audio data.

Example

The following code snippet assumes a valid recognition, RecoResult, although it still checks for validity. AudioSizeBytes displays in a message box. A short phrase such as "Now is the time" might be 56,000 bytes.

If Not RecoResult Is Nothing Then
	Dim rp As ISpeechPhraseInfo
	Set rp = RecoResult.PhraseInfo
	
	MsgBox "AudioTime: " & rp.AudioSizeBytes
End If