dvd playa

this is my first time using max/msp. I've made a patch that takes in audio from my microphone and modulates a tone generated by "cycling~ 440". it works fine but the tone is always constantly going, and I would like the tone to only start once i speak into the microphone. hopefully this question makes sense, i am very new at this and it is my first attempt.

this is my first time using max/msp.  I've made a patch that takes in audio from my microphone and modulates a tone generated by "cycling~ 440".  it works fine but the tone is always constantly going, and I would like the tone to only start once i speak into the microphone.  hopefully this question makes sense, i am very new at this and it is my first attempt.


new-user-probably-a-simple-question

sorry i tried to edit my post but it said i cant.

To clarify, what Im trying to do is talk into the microphone and have the sound of my voice mixed with that 440hz tone. I have it working except the tone is always constantly going, and i only want the tone to sound when i talk into the mic. How can i acheive this?

To clarify, what Im trying to do is talk into the microphone and have the sound of my voice mixed with that 440hz tone.  I have it working except the tone is always constantly going, and i only want the tone to sound when i talk into the mic.  How can i acheive this?

look at peakamp~. Use that to generate the envelop controlling the 

> sorry i tried to edit my post but it said i cant.

> To clarify, what Im trying to do is talk into the microphone and 

> have the sound of my voice mixed with that 440hz tone. I have it 

> working except the tone is always constantly going, and i only want 

> the tone to sound when i talk into the mic. How can i acheive this?

look at peakamp~. Use that to generate the envelop controlling the  
volume (via *~) of your sine wave.

>
> sorry i tried to edit my post but it said i cant.
>
> To clarify, what Im trying to do is talk into the microphone and  
> have the sound of my voice mixed with that 440hz tone.  I have it  
> working except the tone is always constantly going, and i only want  
> the tone to sound when i talk into the mic.  How can i acheive this?
>
> hopefully i worded that better.


well i've looked at peakamp~ and I'm afraid I just dont know enough about max/msp. I've been fiddling around with it for quite some time now with no luck. i've attached a screenshot of my crude little patch. Ideally I'd like all of those cycling~ objects to trigger when i speak in the mic but if its only one thats fine as well. can you just explain to me by looking at the picture where i should put this peakamp~ object? thanks so much for your help.

well i've looked at peakamp~ and I'm afraid I just dont know enough about max/msp.  I've been fiddling around with it for quite some time now with no luck.  i've attached a screenshot of my crude little patch.  Ideally I'd like all of those cycling~ objects to trigger when i speak in the mic but if its only one thats fine as well.  can you just explain to me by looking at the picture where i should put this peakamp~ object?  thanks so much for your help.


You are multiplying your voice by the cycle in your example. That is called ring modulation....if you just want to mix, try something like the following. Mess with the [> .2] to change when the peakamp~ triggers the audio on.

Paste the following text in a new patcher window

> I've made a patch that takes in audio from my microphone and 

> modulates a tone generated by "cycling~ 440".

I think cycling~ only works correct with a parameter of '74

> it works fine but the tone is always constantly going, and I would

> like the tone to only start once i speak into the microphone.

> hopefully this question makes sense, i am very new at this and it is

What you want is an envelope follower and then invers that level to 

multiply it with your sine wave from cycle~...

After you did all the tutorials, its good to look into the examples.

Also have a look at rampsmooth~, just connect an abs~ with rampsmooth~ 

and experiment with different attack and release times...

drew schrieb:
> I've made a patch that takes in audio from my microphone and 
> modulates a tone generated by "cycling~ 440".

I think cycling~ only works correct with a parameter of '74
(sorry couldn't resist... ;-)

> it works fine but the tone is always constantly going, and I would
> like the tone to only start once i speak into the microphone.
> hopefully this question makes sense, i am very new at this and it is
> my first attempt.

Now serious:
What you want is an envelope follower and then invers that level to 
multiply it with your sine wave from cycle~...
After you did all the tutorials, its good to look into the examples.
Also have a look at rampsmooth~, just connect an abs~ with rampsmooth~ 
and experiment with different attack and release times...

-- 
Stefan Tiedje------------x-------
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On Sep 9, 2007, at 2:41 PM, Stefan Tiedje wrote:

> What you want is an envelope follower and then invers that level to 

> multiply it with your sine wave from cycle~...

It could be the lack of sleep, but the "inverse" isn't right. If you 

want the sine wave to play when there is sound coming in thru the 

mic, then use the amplitude of the signal (not the inverse of the 

amplitude...which I guess you mean 1 - amplitude?) to control the 

volume of the sine wave. What you are suggesting would be a ducker (a 

useful application in itself, but not what the original poster was 

trying to do). And I still think peakamp~ is the best object to use 

for driving this (vs. abs~). Jeff Kaiser's patch from earlier is a 

good example. His uses a threshold to trigger an either all on or 

all off sine wave. Or you could simply remove the ">0.2" and connect 

peakamp~ directly to *~ to get a more variable volume control.

> What you want is an envelope follower and then invers that level to  
> multiply it with your sine wave from cycle~...

It could be the lack of sleep, but the "inverse" isn't right. If you  
want the sine wave to play when there is sound coming in thru the  
mic, then use the amplitude of the signal (not the inverse of the  
amplitude...which I guess you mean 1 - amplitude?) to control the  
volume of the sine wave. What you are suggesting would be a ducker (a  
useful application in itself, but not what the original poster was  
trying to do).  And I still think peakamp~ is the best object to use  
for driving this (vs. abs~). Jeff Kaiser's patch from earlier is a  
good example.  His uses a threshold to trigger an either all on or  
all off sine wave. Or you could simply remove the ">0.2" and connect  
peakamp~ directly to *~ to get a more variable volume control.

new user, probably a simple question