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Sound Sensor: more possible than just loudness detection? 
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Joined: Sat Mar 01, 2008 12:52 pm
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Post Sound Sensor: more possible than just loudness detection?
hi,
I want to implement a sort of (simple) sound or speech detection by my neural net.

So is there anything more possible with the sound sensor than just loudness detection, maybe kind of real time frequency analysation (hi pass, low pass filter)?

If there is no way to do this with the built-in electronics: are there any third party sound detecting sensors (maybe I²C with a pre-pocessor)which can do this?

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HaWe aka Ford
#define S sqrt(t+2*i*i)<2
#define F(a,b) for(a=0;a<b;++a)
float x,y,r,i,s,j,t,n;task main(){F(y,64){F(x,99){r=i=t=0;s=x/33-2;j=y/32-1;F(n,50&S){t=r*r-i*i;i=2*r*i+j;r=t+s;}if(S){PutPixel(x,y);}}}while(1)}


Sun Jun 29, 2008 4:50 am
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Joined: Sun Sep 09, 2007 10:12 am
Posts: 116
Post 
Hello Ford...

I don't know of any other sound sensor, but i am working on that...

I am trying to identify "beats" on musics to robotics dance...

With the sound sensor, i already can make it move on sound of music, based on avaliation of past...

I means, i get values and according to informations, i can identify some noise and some beeps sounds...

When i got something better i would post more info

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Sun Jun 29, 2008 12:51 pm
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thx, I'm looking forward...!

in an advertisment they say:
Quote:
The sensor measures dB and dBA, and recognizes sound patterns and tones.


what are that sort of sound patterns, how can they be detected and what kind of digital value do they have?

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regards,
HaWe aka Ford
#define S sqrt(t+2*i*i)<2
#define F(a,b) for(a=0;a<b;++a)
float x,y,r,i,s,j,t,n;task main(){F(y,64){F(x,99){r=i=t=0;s=x/33-2;j=y/32-1;F(n,50&S){t=r*r-i*i;i=2*r*i+j;r=t+s;}if(S){PutPixel(x,y);}}}while(1)}


Sun Jun 29, 2008 3:55 pm
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@dick swan, @tfriez,
could you plz give a statement to these problems?
thx in advance!

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regards,
HaWe aka Ford
#define S sqrt(t+2*i*i)<2
#define F(a,b) for(a=0;a<b;++a)
float x,y,r,i,s,j,t,n;task main(){F(y,64){F(x,99){r=i=t=0;s=x/33-2;j=y/32-1;F(n,50&S){t=r*r-i*i;i=2*r*i+j;r=t+s;}if(S){PutPixel(x,y);}}}while(1)}


Tue Jul 08, 2008 2:42 am
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Joined: Wed Jan 24, 2007 10:42 am
Posts: 601
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No, we cannot give a "statement" on these problems. We did not make these claims of the sound sensor, LEGO did.. You can only detect loudness. If you have an issue with this, contact LEGO.

http://forums.nxtasy.org/index.php?showtopic=1728

Quit thread bumping. It will not solve your issues any faster.

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Timothy Friez
ROBOTC Developer - SW Engineer
tfriez@robotc.net


Wed Jul 09, 2008 10:42 am
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