3 ms·

I wonder if it would be possible to edit it to remove the tone.

• mandelbrotwurst 7y ago
  It's easy enough to filter out specific frequencies - this should work to the extent that the dial tone track doesn't overlap in frequency with the rest of the sounds.
  • jdmichal 7y ago
    Even if it does overlap, as long as the amplitude is predicable one could still only partially remove the frequency.