ZVEI: double tone detection

Question

ZVEI: double tone detection

UmpiiiLumpiii opened this issue 4 years ago · 0 comments

UmpiiiLumpiii commented 4 years ago

Hi,

a double tone is recognized incorrectly.

Test:

sox -t wav double.wav -esigned-integer -b16 -r 22050 -t raw - | multimon-ng -a ZVEI1 -

Result:

multimon-ng 1.1.8
(C) 1996/1997 by Tom Sailer HB9JNX/AE4WA
(C) 2012-2019 by Elias Oenal
Available demodulators: POCSAG512 POCSAG1200 POCSAG2400 FLEX EAS UFSK1200 CLIPFSK FMSFSK AFSK1200 AFSK2400 AFSK2400_2 AFSK2400_3 HAPN4800 FSK9600 DTMF ZVEI1 ZVEI2 ZVEI3 DZVEI PZVEI EEA EIA CCIR MORSE_CW DUMPCSV X10
Enabled demodulators: ZVEI1
ZVEI1: 81E15
ZVEI1: 81E15
ZVEI1: F
ZVEI1: 81514
ZVEI1: 81514
ZVEI1: F
ZVEI1: 81504
ZVEI1: 81504
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E

Expected result:

multimon-ng 1.1.8
(C) 1996/1997 by Tom Sailer HB9JNX/AE4WA
(C) 2012-2019 by Elias Oenal
Available demodulators: POCSAG512 POCSAG1200 POCSAG2400 FLEX EAS UFSK1200 CLIPFSK FMSFSK AFSK1200 AFSK2400 AFSK2400_2 AFSK2400_3 HAPN4800 FSK9600 DTMF ZVEI1 ZVEI2 ZVEI3 DZVEI PZVEI EEA EIA CCIR MORSE_CW DUMPCSV X10
Enabled demodulators: ZVEI1
ZVEI1: 81115
ZVEI1: 81115
ZVEI1: F
ZVEI1: 81514
ZVEI1: 81514
ZVEI1: F
ZVEI1: 81504
ZVEI1: 81504
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E
ZVEI1: E

Sample file can be found here:

double.zip

File generated by:

https://adlerweb.github.io/webtools/zvei.html