☰

DTMF von der Soundkarte dekodieren

tag-icon • tag-icon linux audio sound-card phone
DTMF von der Soundkarte dekodieren

Ich versuche, DTMF (Telefontöne) von meiner Linux-Soundkarte zu dekodieren. Ich habe versucht, Multimon zu verwenden. Aber wenn ich „multimon -a DTMF“ ausführe, wie es in der Dokumentation steht, funktioniert es nicht. Weiß jemand, wie man „multimon“ oder ein anderes Programm verwendet, das unter Linux genauso funktioniert?

$ multimon -a DTMF
multimod  (C) 1996/1997 by Tom Sailer HB9JNX/AE4WA
available demodulators: POCSAG512 POCSAG1200 POCSAG2400 EAS AFSK1200 AFSK2400 AFSK2400_2 HAPN4800 FSK9600 DTMF ZVEI CCIR SCOPE
Enabled demodulators: DTMF
open: No such file or directory

Wenn ich „strace -e file multimon -a DTMF 2>&1 | grep ENOENT“ ausführe, ist dies die Ausgabe:

$ strace -e file multimon -a DTMF 2>&1 | grep ENOENT
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/dev/dsp", O_RDONLY)              = -1 ENOENT (No such file or directory)

Antwort1

Schließlich eignet sich Multimon-ng, der Nachfolger von Multimon, gut zur Demodulation von DTMF.

$ multimon-ng -a DTMF
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 SCOPE
Enabled demodulators: DTMF
DTMF: 5
DTMF: 6
DTMF: 8

verwandte Informationen