only_lonely Posted June 8, 2006 Report Share Posted June 8, 2006 I have no idea on the audio test by using oscilloscope.Example:I play a music, and i use volume control to adjust the left and right volume.(Windows Audio/Sounds Properties)How to use the scope to verify whether the volume that i adjust is accurate.Anybody here, Pls help me.Thanks a lots. Quote Link to comment Share on other sites More sharing options...
audioguru Posted June 8, 2006 Report Share Posted June 8, 2006 The volume of music changes moment to moment so you can't measure or adjust it accurately. Just adjust it so it isn't too soft or isn't too loud.An oscilloscope is used to see clipping or other distortion on sine-waves that have a constant level. It can also show if the channels are in-phase or are out-of-phase. Quote Link to comment Share on other sites More sharing options...
only_lonely Posted June 9, 2006 Author Report Share Posted June 9, 2006 Sorry,one noob question:where should i point at the board to see the waveform, n check the phase? Quote Link to comment Share on other sites More sharing options...
audioguru Posted June 9, 2006 Report Share Posted June 9, 2006 An oscilloscope shows the waveform throughout a circuit and at the output of a circuit.Phase between channels can be shown by using one channel to deflect the beam vetically and the other channel to deflect the beam horizontally. Stereo music shows a constantly moving pattern, mono shows a diagonal line and out-of-phase shows the opposite diagonal line. Without a signal then the display doesn't deflect and has a very bright dot in the center of the screen. This dot can burn the screen if left on too long. Quote Link to comment Share on other sites More sharing options...
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