# [chuck-users] No simple vibrato example

Steve Morris barbershopsteve at gmail.com
Thu Dec 5 19:09:13 EST 2013

```You can combine multiple ugens in a variety of ways. In particular you can
multiply the output of two ugens. I'm typing without running so forgive

On Wed, Dec 4, 2013 at 8:12 PM, Moisés Gabriel Cachay Tello <
xpktro at gmail.com <javascript:_e({}, 'cvml', 'xpktro at gmail.com');>> wrote:

> You can always try to modulate the Oscilator:
>
> SinOsc vibrato => SinOsc sine => dac;
> // This will tell sine to take the vibrato input as a modulator of
> // it's frequency.
> 2 => sine.sync;
>
> 5 => vibrato.freq;
> 10 => vibrato.gain;
>
> 5::second => now;
>
>
> 2013/12/4 Manuel Bärenz <manuel at enigmage.de <javascript:_e({}, 'cvml',
> 'manuel at enigmage.de');>>
>
>> Hi guys,
>>
>> I'm giving a presentation on ChucK tomorrow and I wanted to show off
>> some of the basic features in a live coding session. I found that
>> creating a vibrato (modulating the frequency) is far too hard. The
>> example I'm looking at is
>> http://chuck.cs.princeton.edu/doc/examples/basic/whirl.ck. In an
>> infinite loop, you have this code:
>>
>>     30 + ( Math.sin(t) + 1.0 ) * 10000.0 => s.sfreq;
>>     t + .004 => t;
>>
>> Here, t is a float and s is a SinOsc. Now, what I would have expected is
>> the following, more intuitive setup outside the loop:
>>
>> 30 + SinOsc freq_mod => s.freq;
>> 1 => freq_mod.freq;
>>
>> I know that the first line with the "30 + SinOsc" is probably nonsense
>> in itself, but I could work around that (by using a step UGen for
>> example). My actual problem is that you can't chuck a SinOsc into s.freq.
>> Consider this line:
>>
>> SinOsc freq_mod => s.freq;
>>
>> I get an error like this:
>> arguments type(s) do not match:
>> ... for function 'SinOsc.freq(...)' ...
>> ...(please check the argument types)
>>
>> Is this something that the language is simply not capable of or am I
>> doing something wrong?
>>
>> Best, Manuel
>> _______________________________________________
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>> 'chuck-users at lists.cs.princeton.edu');>
>> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
>>
>
>
>
> --
> -Moisés
>
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