Using channel 2 as reference

Now we will use channel 2 as reference. Note that if you want to perform a 2 channel measurement (e.g. measuring the frequency response of 2 microphones) you cannot use this method since channel 2 is used as reference. If you want to do a 2-channel measurement, skip the rest of this section.

Go to Measurement->Settings.... In step number 6. set-up the reference for the calculation of the impulse/frequency response as shown below

The type of reference you can select is listed from the types below.

If you select Right channel input, the input signal from channel 2 is used as reference for computing the impulse response. The sound card response is subtracted from the measurement result assuming that channel 1 and channel 2 are equal. This setting should work for all sound cards that have a stereo input.

The response and delay of the sound card will automatically be corrected using this method.