ClackScope

An oscilloscope for whatever the soundcard hears, or for an audio file you drop on the screen. One volt on the graticule is digital full scale.

↑ ↓
volts per division
← →
time per division
Space
run / stop
T
force a sweep
0
trigger level to zero
Wheel
volts per division; hold Shift for time
RUN Test tone · 1 kHz