Deleting a Time-Frequency Component

Prerequisites: Opening or calculating a time frequency representation is required. A time frequency component must be selected in the representation. The playback controls must be displayed.
  1. From the Tools menu, choose:
    • Rub out selected area to remove the selected area from sound and automatically fill the sound with an energy similar to the area around the removed area.

      Figure 1. On the left, several components are selected in Bird_plus_idle.wav* time-frequency representation. On the right, the selected components (here bird tweets) are rubbed out from the time-frequency representation.

      *Bird_plus_idle.wav is located in SoundSamples\TestSounds

    • Delete selected area to completely remove the selected area from the sound, as if a gain of -100 dB is applied on the selected area.

      Figure 2. On the left, several components are selected in Bird_plus_idle.wav* time-frequency representation. On the right, the selected components (here bird tweets) are deleted out from the time-frequency representation.

      *Bird_plus_idle.wav is located in SoundSamples\TestSounds

  2. Click Play synthesized sound .
  3. Click Play original sound .
  4. Click Enable/disable synchronous play to carry on the playback from the point it was when you switch from the synthesized to the original sound.

The time-frequency component is deleted.

Tip: You can test both Rub out selected area and Delete out selected area tools with the same sound. Then, add the synthesized sounds to playlist to compare the results by listening.