SaveAudio Method

Summary

Creates an audio (wave) file from the channels in the waveform group.

Syntax

C++

public void SaveAudio( 
   string fileName 
)

Public Sub SaveAudio( _ 
   ByVal fileName As String _ 
)

public: 
void SaveAudio(  
   String^ fileName 
)

fileName
Name of the audio file to be created.

Remarks

This method is very useful for extracting audio (wave) data from a DICOM object of type "Basic Voice Audio" (1.2.840.10008.5.1.4.1.1.9.4.1), which is typically used for report dictation.
The resulting wave file has the following characteristics:
1. Number of channels: will either be 1 or 2, based on the value of the number of channels for this multiplex group. You can call ChannelCount to get the number of channels in a multiplex group.
2. Bits per sample (sample size) will always be 8.
3. Samples per second (sampling rate): This will be the same as the sampling frequency for the waveform group, call GetSamplingFrequency to get this value.
4. Format category: PCM, mu-Law or a-Law, based on the value of the waveform sample interpretation which can be retrieved by calling GetSampleInterpretation.