help synth oscillator
The oscillators are the main part of the synthesizer. An oscillator is an audio source repeating a periodic wave hundred of times per second. More a wave is repeated more high/acute the sound will be.
For example the A4 key is the pitch standard at 440Hz, meaning the wave will be repeating 440 times per second. The Hz of the A3, A4 and A5 are respectively 220, 440 and 880.
In the GridSound's DAW an oscillator looks like this (with a sawtooth wave, the most common one):
1️⃣ The slider on the full right is the gain meaning the volume of the oscillator corresponding of the height of the visual wave.
2️⃣ This is the pan meaning "panoramique", controlling the balance between left and right. On the screenshot the pan is not at 0 this is why we can see two overlapping waves on the graphic (5).
3️⃣ The two nested white sliders are controlling the pitch. The bigger one has a step of 1 semiton, while the little one has a step of 1% of a semiton.
4️⃣ Those orange sliders are controlling the Unison (aka chorus). The ticker slider is to set the number of voices, the one in the middle is to set the interval between each voice, and the last one on the right is the gain of the voices. The little graph on the left sums it all up.
5️⃣ The wave graphic, we can see two curves one blue and one red, those represent the two channel left and right.
6️⃣ The two little arrows lets you switching wave from one to another, you also can click on the name (here "sawtooth") to directly the one you prefer.
7️⃣ The button to open the wave-edition (click for more information).
8️⃣ This is a grip you can use (by click and drag) to reorder the oscillator between each others. This doesn't change the sound, just purely esthetic.
9️⃣ This is an attempt to handle the phase, each oscillator start their wave at the begining, but it can be interesting to change that. Because WebAudio doesn't handle this feature, this is not really changing the phase but it's a delay, somehow it's kind of doing the same.