Comments on: Sound, tone and DTMF generation by using managed DirectSound and C# and sine tone detection with pure managed Goertzel algorithm implementation http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/ Take care of the sense, and the sounds will take care of themselves. Thu, 29 Jul 2010 18:57:24 +0000 hourly 1 http://wordpress.org/?v=3.0 By: steff http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-3504 steff Wed, 09 Dec 2009 15:56:48 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-3504 Hi could u please attach the c# code? :$ thanks Hi could u please attach the c# code? :$
thanks

]]> By: william http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-3276 william Tue, 08 Sep 2009 07:50:58 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-3276 What are the references mate ? What are the references mate ?

]]> By: Steven http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-2692 Steven Wed, 04 Feb 2009 01:27:04 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-2692 Essentially the result of the Goertzel algorithm shows a peak at 6kHz (not one of the frequencies from DTMF) This is actually a harmonic of the combined DTMF signal, The values of freq coming in need to be shown, and the correct data needs to be displayed Essentially the result of the Goertzel algorithm shows a peak at 6kHz
(not one of the frequencies from DTMF)

This is actually a harmonic of the combined DTMF signal,
The values of freq coming in need to be shown, and the correct data needs to be displayed

]]> By: louisa http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-1189 louisa Thu, 01 Jan 2009 08:39:02 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-1189 <p>im abit comfused im only ten so im not sure what age group this website is for</p> im abit comfused im only ten so im not sure what age group this website is for

]]> By: teo http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-1188 teo Thu, 01 Jan 2009 08:39:01 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-1188 <p>You say you have tested that piece of code ?</p> <p>If you are so kind to attach the c# file with all the code, THAT WORKS.</p> <p>Thx.</p> You say you have tested that piece of code ?

If you are so kind to attach the c# file with all the code, THAT WORKS.

Thx.

]]> By: Tamir Khason http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-1187 Tamir Khason Thu, 01 Jan 2009 08:39:00 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-1187 <p>Teo. code parts here were taken from big project. I cannot attach it to the post. However, thatnk you for interesting my blog.</p> Teo. code parts here were taken from big project. I cannot attach it to the post. However, thatnk you for interesting my blog.

]]> By: zubair http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-1186 zubair Thu, 01 Jan 2009 08:38:59 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-1186 <p>hi,i m makin a projecton dtmf detection via mic.i m not cleared  how the gortezel work.i have used a 50 ms sound sample of dtmf tone of key 1 i.e 1906 hz.using sampling rate of 8000 i got the result on calculation as 39.0567..... .this is the result after passing the parameters in to calculate gortezel function .Help me out how can i recognise the exact dtmf on run time using gortezel algorithim.</p> <p>Waiting for your response .</p> <p>Thanks and regards</p> <p>Zubair</p> hi,i m makin a projecton dtmf detection via mic.i m not cleared  how the gortezel work.i have used a 50 ms sound sample of dtmf tone of key 1 i.e 1906 hz.using sampling rate of 8000 i got the result on calculation as 39.0567….. .this is the result after passing the parameters in to calculate gortezel function .Help me out how can i recognise the exact dtmf on run time using gortezel algorithim.

Waiting for your response .

Thanks and regards

Zubair

]]> By: sagar Kadam http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-1185 sagar Kadam Thu, 01 Jan 2009 08:38:57 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-1185 <p>Can you explain me which frequency you are using here in above example?</p> <p>Because each dtmf signal has two frequecies associated with it. one lowerband freq and another is upperband frequency.</p> <p>Thanks and regards,</p> <p>Sagar Kadam</p> Can you explain me which frequency you are using here in above example?

Because each dtmf signal has two frequecies associated with it. one lowerband freq and another is upperband frequency.

Thanks and regards,

Sagar Kadam

]]> By: Ways to play beep (tones) by programming « Everyone Has Problems http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-1184 Ways to play beep (tones) by programming « Everyone Has Problems Thu, 01 Jan 2009 08:38:56 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-1184 <p>Pingback from  Ways to play beep (tones) by programming « Everyone Has Problems</p> Pingback from  Ways to play beep (tones) by programming &laquo; Everyone Has Problems

]]> By: Godwin http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/comment-page-1/#comment-1183 Godwin Thu, 01 Jan 2009 08:38:55 +0000 http://khason.net/blog/sound-tone-and-dtmf-generation-by-using-managed-directsound-and-c-and-sine-tone-detection-with-pure-managed-goertzel-algorithm-implementation/#comment-1183 <p>How do you finally get the digits from it?? </p> <p>I don't understand what you mean by this...</p> <p>1200 - -272.273842954695</p> <p>2400 - -198.538262992751</p> <p>3600 - -214.476846236253</p> <p>4800 - -224.242925995697</p> <p>6000 - 87.1653837206957 <- here result</p> <p>7200 - -225.52220053475</p> <p>8400 - -222.836254116698</p> <p>9600 - -230.526410368965</p> <p>10800 - -220.587695185849</p> <p>??</p> <p>How do I relate these to 1,2 and 3??</p> <p>I'm confused.</p> <p>Please help me if possible.</p> <p>Thanks</p> How do you finally get the digits from it??

I don’t understand what you mean by this…

1200 – -272.273842954695

2400 – -198.538262992751

3600 – -214.476846236253

4800 – -224.242925995697

6000 – 87.1653837206957 <- here result

7200 – -225.52220053475

8400 – -222.836254116698

9600 – -230.526410368965

10800 – -220.587695185849

??

How do I relate these to 1,2 and 3??

I’m confused.

Please help me if possible.

Thanks

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