Using VB to develop sound test automation, want to let the stereo playback sine wave, the audio output audio (lower level) through a circuit of input to the computer sound card line in interface, let the computer to read audio voltage, judge whether the audio in the normal work, but I don't know how to program the computer sound card receives the audio level value, in other words is how to use VB programming through the sound card to capture audio audio voltage value,

CodePudding user response:

Do you want the sound card as an analog quantity acquisition card?

CodePudding user response:

Have an existing virtual oscilloscope software, it is using the sound card.

But to write their own, do not know..

CodePudding user response:

Half of a lot of people use LabView collecting the signal, display waveform

CodePudding user response:

Adobe Audition technology

CodePudding user response:

Have a special system controls,