VIDEO : Εἰσήγησις πρὸς εὔκολον προσδιόρησιν διαστημάτων
Sonic Visualiser 2.4.1 FREEware
(http://analogion.com/forum/showpost.php?p=201155&postcount=44)
Real-time spectrum visualisation
Frequency Analyzer
(http://www.relisoft.com/freeware/freq.html)
Vocalab
https://www.youtube.com/watch?v=ve9BoNzQXsc
Sonic Visualiser 2.4.1 FREEware
(http://analogion.com/forum/showpost.php?p=201155&postcount=44)
Real-time spectrum visualisation
Frequency Analyzer
(http://www.relisoft.com/freeware/freq.html)
Vocalab
https://www.youtube.com/watch?v=ve9BoNzQXsc