I have an audio file which is recorded from a stream which contains time
'pips' I wish to use as a cue point.
The head can be anything from a few seconds to 2 minutes depending on
the transmission delay time.
I can detect silence in the file which I can use to trim the audio but
the silence based script fails when the head audio is longer then 30
seconds or so.
Using the 1kHz tones as a marker will give me a more accurate edit point.
Is there something in the Sox arsenal which can detect this tone?
Once I have the beginning everything after is time related.
My reading suggests that there is a way of analysing the audio using FFT
but this is definitely beyond my ability.
regards
Robert
--
Robert Jeffares
Communication Consultants
64 Warner Park Avenue
Laingholm
Auckland
New Zealand 0604
+64 9 817 6358
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