Detection of a specific sound
Chris Angelico
rosuav at gmail.com
Tue Oct 27 02:00:47 EDT 2015
On Mon, Oct 26, 2015 at 1:54 PM, Dennis Lee Bieber
<wlfraed at ix.netcom.com> wrote:
> One difficulty -- there is no standard "smoke alarm" sound... While
> they are using piezo-electric buzzers, the control processor may cycle the
> buzzer in different patterns from maker to maker, or slightly different
> pitches.
Maybe not, but since most smoke alarms have a simple "Test" button, it
should be possible to have the program record a sample of the alarm
it's listening for. That would make detection easier.
I personally have no idea how it would work, but in theory, this
should be equivalent to voice navigation - use the same kind of code
that detects spoken commands, just with a different "language".
ChrisA
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