Tremolo Machine
(from a blog post in 2011, halfhourhacks 2011-09-02-tremolo-machine.html)
This is a machine that makes sounds. It's not a very serious project, but I find it entertaining.
Click and drag the dots in order to move the levers, and click the play button to hear the result.
(Further changes are not picked up in real time; you have to click play again.)
All the buttons, from the top down:
- Play button, to start audio
- Pause button
- Textfield button -- you can click this to type in a specific value
- New -- resets back to the beginning
- Save -- save as a url that you can send to friends!
- Eye -- open an example
Terminology:
- 'vib' is vibrato, causing the pitch to change pitch over time.
- 'trem' is tremolo, causing the sound to become quieter and louder over time.
- 'vib10' and 'trem10' are more potent versions of 'vib' and 'trem' (the frequency is 10 times faster).
- trem10 with a high frequency can be an interesting effect. vib10 with a high frequency is essentially using frequency modulation to create another pitch.
- vibc is the cooing of a bird; it plays one quarter of the vibrato and silences the rest.
Try it!
(works in recent Chrome or Firefox on a desktop or laptop)