process-records.sh crashes when processing special files (don't know exactly when)

[blaues0cke]

Have this log so far:

... processing file: /usr/sleeptalk/records-amplitude/1481432093-max-0.051788-mid-0.010254.wav
... timestamp: 1481432093
... maximum amplitude: 0.051788
... mid amplitude: 0.010254
... is_first_floating_number_bigger: comparing 0.051788 with 0.05200 (to check if the first one is bigger)
... is_first_floating_number_bigger: result is: 0
... is_first_floating_number_bigger: 0.051788 is not bigger than 0.05200
... is_first_floating_number_bigger: comparing 0.010254 with 0.020000 (to check if the first one is bigger)
... is_first_floating_number_bigger: result is: 0
... is_first_floating_number_bigger: 0.010254 is not bigger than 0.020000
... maximum amplitude compare: 0 (0.051788 >= 0.05200)
... mid amplitude compare: 0 (0.010254 >= 0.020000)
... saved end timestamp, it is: 1481432093-max-0.051788-mid-0.010254
... final filename will be: 1481432083-max-0.053223-mid-0.004471-1481432093-max-0.051788-mid-0.010254.wav, saving file to: /usr/sleeptalk/temp/1481432083-max-0.053223-mid-0.004471-1481432093-max-0.051788-mid-0.010254.wav
... files to concat: /usr/sleeptalk/records-amplitude/1481432083-max-0.053223-mid-0.004471.wav /usr/sleeptalk/records-amplitude/1481432086-max-0.061981-mid-0.028229.wav
... normalizing audio
... done normalizing audio
... deleting /usr/sleeptalk/records-amplitude/1481432083-max-0.053223-mid-0.004471.wav /usr/sleeptalk/records-amplitude/1481432086-max-0.061981-mid-0.028229.wav
... appending noise filter
... getting length of audio file: /usr/sleeptalk/temp/1481432083-max-0.053223-mid-0.004471-1481432093-max-0.051788-mid-0.010254.wav
... sox result: Samples read:            308739
Length (seconds):      7.000884
Scaled by:         2147483647.0
Maximum amplitude:     0.944092
Minimum amplitude:    -0.838379
Midline amplitude:     0.052856
Mean    norm:          0.022132
Mean    amplitude:     0.000000
RMS     amplitude:     0.046843
Maximum delta:         0.045593
Minimum delta:         0.000000
Mean    delta:         0.004516
RMS     delta:         0.005873
Rough   frequency:          880
Volume adjustment:        1.059
... full seconds: 7.000884
... seconds: 7
... removing trailing zeros from: 000
... string now:
... milliseconds:
bash/process-records.sh: 53: bash/process-records.sh: arithmetic expression: expecting primary: "7000 + "

[blaues0cke]

Looks like a problem with formatting 7.000884