Measuring oscillator frequency?

[jlo]

How do I do this with a DMM on a modulation pedal?  I don't have a scope but there is a frequency setting on the DMM.  Thx

[GibsonGM]

Just place the black probe on your ground point, and measure the frequency with the red probe at the oscillator output.  Many meters need a few volts output to function, though.  Hopefully yours outputting enough; try it!  Welcome to the forum

[ElectricDruid]

Also make sure to set the modulation rate as low as possible so the meter has a chance to keep up. You'll get nonsense if the frequency is swinging all over the place.

On some flangers, you can reduce the "Depth" to zero, and use the "Manual" control to change the clock frequency. This is very useful for this kind of test.

[jlo]

Thx!  Will try this when I get a chance

[Rob Strand]

Low frequencies won't be measured well with most DMM.

It's actually easier to record the sound, open it up the file in a sound editor, then measure the time or number of samples for a number of LFO cycles.