The first stage of measuring the soundcard is to use a 1kHz tone to set the levels of the measurement signal and the soundcard input. The tone is generated at the current Sweep Level setting, it is best to use a fairly high level for soundcard measurement, between -12 and -6dB FS. Set this level now using the Sweep Level control above, the original sweep level setting will be restored at the end.

Wave Volume should be set to 1.0 (full volume), Output Volume should be around 0.5 if it affects the signal level. You can set these levels via the controls above (if they are enabled) or those in your soundcard's mixer or your OS audio level controls.

Press Next when the Sweep Level, Wave Volume and Output Volume have been set or Cancel to quit.