How can I amplify audio signals from wav file?(gain control)

I want to develop an audio equalizer using labview. How can I control the gain of the audio signal (amplify) using labview vis.

If your audio signal is in form of a numeric array or a waveform cluster, to amplify it, just muliply it with a numeric value
like in this VI
Regards
Dev
Attachments:
Amp.vi ‏51 KB

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