You can remove the echo/reverb with audacity, which is a video/audio editor that has proven effective when it comes to reducing the effects of sound reflection. Audacity has a tool known as a noise gate that allows you to control echo and reverb and any other background noises between the audio segments.
Step By Step Process on How to Remove Echo/Reverb with Audacity
Step 1: Download and install the Audacity app on your device. You can get it from the Audacity website.
Step 2: Launch the Audacity. Under the Effect Menu, you will see the ‘Noise Gate’ function..
Step 3: Open your audio file in Audacity. Go to the Effect menu and click Noise Gate. Being an offline effect, the Noise Gate window will process your audio before playing it back to you so that you can hear the echo.
Step 4: Set the controls on the Noise Gate window to remove the unwanted content from your audio.
- Set “Level reduction” at 100.
- Set ‘Gate threshold’ at 30.
- Set ‘Attack/Decay’ at 75.
The Level Reduction tells the noise gate how much to reduce the unwanted echo. The Gate Threshold sets the volume at which the reduction of the sound should start. And the Attack/decay function affects how quickly the entire process starts and stops. After making settings, click OK to start the process.
Step 5: After the removal process is done, play the audio to evaluate the noise gate process. If there are no changes to the echo, you can adjust the settings, probably by increasing the threshold setting, until the echo/reverb is significantly reduced. And if part of the audio is cut off, reduce the threshold setting. Of course, this process may take several attempts but it’s easy, overall– click Edit, then Undo in order to restore the audio to its original state.
To make the Noise Gate effect sound more natural, consider adjusting the level reduction as well as the Attack/decay settings. By increasing Level reduction, you add some echo, but it is possible to control the level you wish to adjust to. And by increasing Attack/Decay time, you smooth out how the Noise gate Process starts and ends.