Visualisation is helpful for troubleshooting, if e.g. something does sound distorted, then taking a look at a meterbridge could be timesaving. Phase correlation does ensure that the phases are ok for airplay. However, visualisation isn't needed, but could be helpful. For analog recordings measurements at least are needed for bias calibration. Regards, Ralf _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user