Generated in 1992 by the spectral analysis software MacSonogram by Peter Lundén and Tamás Ungváry from the Kineto-Auditory Communication Research Group (KACOR) at the Royal Institute of Technology (Kungliga Tekniska högskolan, KTH), Stockholm (Sweden).
![[November 1992]](https://res.electrocd.com/image.php/image/8/8040_imed_9604-1.24.png?width=n8)
