I am looking for something in asterisk that will let me record a wav file in asterisk (which I know how to do) then some other command (external or dialplan) that would read the wave file and tell me if a certain tone or frequency is present. Is this in asterisk already - any way to do it? Thanks Jerry
Hi Jerry, On Thu, Apr 8, 2010 at 6:54 PM, Jerry Geis <geisj at pagestation.com> wrote:> I am looking for something in asterisk that > will let me record a wav file ?in asterisk (which I know how to do) > then some other command (external or dialplan) that would read > the wave file and tell me if a certain tone or frequency is present. > > Is this in asterisk already - ?any way to do it? > ThanksYou might want to look into the PipeWave tools: http://www.cardiff.ac.uk/psych/home2/CullingJ/pipewave.html The tools can generate a FFT (fast-fourier transform) of a wav file which converts the data into the frequency domain, which should allow you to tell if a certain frequency is present. -- James> > Jerry
How about a generic beep detector? One that detects beeps at various frequencies not fixed frequencies that would listen to the RTP audio stream and send out a manager event when a detection occurs? John> -----Original Message----- > > Hi Jerry, > > On Thu, Apr 8, 2010 at 6:54 PM, Jerry Geis <geisj at pagestation.com> > wrote: > > I am looking for something in asterisk that > > will let me record a wav file ?in asterisk (which I know how to do) > > then some other command (external or dialplan) that would read > > the wave file and tell me if a certain tone or frequency is present. > > > > Is this in asterisk already - ?any way to do it? > > Thanks > > You might want to look into the PipeWave tools: > http://www.cardiff.ac.uk/psych/home2/CullingJ/pipewave.html > > The tools can generate a FFT (fast-fourier transform) of a wav file > which converts the data into the frequency domain, which should allow > you to tell if a certain frequency is present. > > -- James > > > > > Jerry > > --