ToneDetect.py

#!/usr/bin/env python3
import logging
import sys
import os

from twotonedecoder import DetectTones
logging.basicConfig(level=logging.DEBUG, format='[%(asctime)s] %(levelname)-11s %(message)s')
logger = logging.getLogger('tone_detect')

if len(sys.argv) > 1:
    FILE_TO_ENCODE=sys.argv[1]
else:
    logger.error("no wave file provided")
    sys.exit(1)

logger.debug("file to encode: %s", FILE_TO_ENCODE)

def touch(fname, times=None):
    with open(fname, 'a'):
        os.utime(fname, times)

WAV_FILE=os.path.basename(FILE_TO_ENCODE)
logger.debug("WAV_FILE: %s", WAV_FILE)

toneDetector = DetectTones()
## Return Nagios style status codes:
## 0 - No Tone Detected
## 1 - Possible Unidentified Tone Detected
## 2 - Identified Tone Detected
## 3 - Unknown/Something Weird Happened
exit(toneDetector.detectWaveFile(FILE_TO_ENCODE))

Works with Trunk Recorder to detect tones on the tranmissions.

Jan 1 11:46:24 medrc-recorder-1 recorder[2199]: [2019-01-01 11:46:24.007254] (info) [stclairco]#011TG: 7236#011Freq: 8.520875e+08#011Ending Recorded Call - Last Update: 6s#011Call Elapsed: 33
Jan 1 11:46:24 medrc-recorder-1 recorder[2199]: [2019-01-01 11:46:24.007521] (info) Running upload script: ./encode_upload.py /tmp/capture/stclairco/2019/1/1/7236-1546364751_8.527e+08.wav &
Jan 1 11:46:24 medrc-recorder-1 recorder[2199]: [2019-01-01 11:46:24,418] WARNING possible unidentified dispatch [369.0, 362.0]
Jan 1 11:46:24 medrc-recorder-1 recorder[2199]: [2019-01-01 11:46:24,418] WARNING Tone Detector Returned: 1
Jan 1 11:46:24 medrc-recorder-1 recorder[2199]: [2019-01-01 11:46:24,470] INFO Sending [7236] Belleville Police Dispatch to /var/run/liquidsoap/belleville.sock
Jan 1 11:46:24 medrc-recorder-1 recorder[2199]: [2019-01-01 11:46:24,475] INFO Sending [7236] Belleville Police Dispatch to /var/run/liquidsoap/scclaw.sock