Audiotool board archive

Space synth: possibility to set harmonics to zero

sea foam and the wind · started 2022-09-05 12:28 · updated 2022-09-05 20:12

How to re-create the bug

When double-clicking on the knob to input the number of harmonics, it is possible to output a wave-table that doesn't contain any partial.
So far, I have identified several types of values leading to this result:

  • Negative integers in the range of ]-∞; -129]

  • Positive integers in the range of [+128; +∞[

  • Any decimal number (due to the decimal separator symbol)

  • Letters and any other non-numeric symbol, such as punctuation marks. Whether they are inputted alone or combined with a normally valid number (meaning integers ranging from 1 to 32), the result will be the same.

I re-created this bug on my desktop using various browsers (Brave, Chrome, Edge) and Windows 11.
It happens in both the old and new locations of the studio app.

Result

As there is no spectrum, the display will be blank.
Whenever a note is triggered, the Space will output a clicking noise.

The bug itself might not be a major issue in appearance, as inputting a valid number or tweaking the knob will bring partials back.
But I have seen recent bug reports about the instability of the Space's audio output. I wonder if these bugs are interconnected in some way.

Comments (2)

2022-09-05 20:12 · 2022-09-05

It looks like there's a lack of input validation in the app.