how to simulate a human heart beat?
Hi,
I want to simulate with max msp (human body) sounds.
But i am not a sound engineer. :?
Mainly i am searching for a way to simulate a heart beat and the beep sound from an ECG (elektrocardiogram).
> http://nl.wikipedia.org/wiki/Elektrocardiogram
+ heart beat soundfile in attachment
Tips, trics, tutorials or ... are all welkom.
Thanks, bart
have you seen the EKG patcher in multislider.help?
On 23/09/2007, bart wrote:
> Hi,
>
> I want to simulate with max msp (human body) sounds.
> But i am not a sound engineer. :?
>
>
> Mainly i am searching for a way to simulate a heart beat and the beep sound from an ECG (elektrocardiogram).
> > http://nl.wikipedia.org/wiki/Elektrocardiogram
> + heart beat soundfile in attachment
>
> Tips, trics, tutorials or ... are all welkom.
>
>
>
> Thanks, bart
>
>
>
>
Maybe a clich
i remember playing around with 2d.wave~ using it could be a goodway~
especially in low values
DJ YO
also a bass drum sample (not the ones of the GM tones) with a kind of amplitude envelope for attenuating the attack
I'd just sequence it - cut the du-dunk of the heart sound in two, and
then just trigger them like a regular sample - no need to reinvent the
wheel, provided you find the right sounds.
Thank you all for nice and fast reply!
I gonna try:
"...using some kind of impulse (with click~, for example) and a static lowpass filter with the cutoff between 50 and 200 Hz (try) and some resonance (try to increase Q from 0.7 to 10, for example)."
+
"... 2d.wave~ using it could be a goodway~ ..."
+
"... I'd just sequence it - cut the du-dunk of the heart sound in two, and then just trigger them like a regular sample - no need to reinvent the wheel, provided you find the right sounds."
I sequence already heartbeat samples but i wanna create it so that i have more control over it plus a clear sound. Because i have find after hours of research on internet only and a lot of heartbeat samples with a lot of noise on the background.
Is there somebody out there how has a url or clear heart beat samples?
Grzz, Bart
> du-dunk of the heart sound
In French, it would be P'-P'm
Sorry or my morning indiscipline...
pa
Samuel, could you possibly re-post your ECG patch?
Does't work at present, I think there are maybe some lines missing from the text?
Cheers..
It is also in the multislider.help like Samuel has sayed.
I can't use it but maybe you.
I haven't had the time to test the other tips.
"... du-dunk of the heart sound In French, it would be P'-P'm ..."
In dutch it will be bu-bunk. :)
Grzz, Bart
I think it's a modified form of the helpfile though - the original patch has no audio!
the simplest way is probably to use a square or rectangle wave at very low frequency (about 1Hz) and tune the pulse width correctly
you may add a lp filter too (with some low frequency resonance) ...
bart schrieb:
> Is there somebody out there how has a url or clear heart beat
> samples?
Search for sounds at http://freesound.iua.upf.edu/
Stefan
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Stefan Tiedje------------x-------
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Pink noise a.k.a 1/f noise.
" In biological systems, it is present in heart beat rhythms and the statistics of DNA sequences."
-wikipedia
Link: http://en.wikipedia.org/wiki/Pink_noise
"The time series made up of intervals between successive R peaks (reflecting muscle contractions) of the electrocardiogram of the human heart has an approximately power spectrum; the slope of the log-log plot in Figure 2C is about 1.075 over several decades of frequency."
-Scholarpedia
Link: http://www.scholarpedia.org/wiki/index.php?title=1/f_Noise&redirect=no
Sound sample attached.
Note: Filtration of "white" noise is only an approximation.
ehdyn
