Basic Oscillator UGens can't be use Envelope as signal input with sync 0

[jwmatthys]

The documentation says that SinOsc.sync(0) syncs the frequency to input. This works with oscillators as input, but not Envelope.

Envelope e => SinOsc s => dac;
220 => e.value;
440 => e.target;
minute => e.duration;
minute => now;

But s's frequency remains at zero.

Using an envelope as freq input would greatly simplify glissando.

[spencersalazar]

ChucK envelopes work by applying their value to their input. Since this envelope has no input, its value is applied to 0, resulting in constant 0 output. You can try feeding a constant:

Step one => Envelope e => SinOsc s => dac;
1 => one.next;

which should give you the desired result. However it might be nice if Envelope/ADSR detected if they have input or not, and would output the current envelope value if there is no source connected.

[jwmatthys]

Ah! Of course, Envelope is a signal multiplier! Thank you.

Perhaps an example using Step => Envelope => SinOsc for glissando could go in the basic examples?