How to Remove Echo from Audio

Using Audacity

1. How to Remove Echo from Audio Picture 4
   Open Audacity. Audacity has an icon that resembles an audio wave in between two blue headphones. Click the icon to open Audacity.

   1. To download Audacity, visit https://www.audacityteam.org/download and click the download link for your computer's operating system. Once downloaded, double-click the installer file and follow the prompts.
2. How to Remove Echo from Audio Picture 5
   Open the audio file. Audacity supports most audio formats, such as mp3, wav, aiff, flac, ogg, and ffmpeg. To open an audio file:

   1. Click File
   2. Click 'Open
   3. Browse to and select the audio file.
3. Select the entire audio. Once you open an audio file in Audacity, simply double-click the wave to select the entire audio file. You can also click and drag to select a section of the audio.
4. How to Remove Echo from Audio Picture 6
   Apply Compressor (if needed). If there is a huge difference in the loud parts and quiet parts of your audio file, you can apply some Compressor effect to reduce the disparity between the loud parts and quiet parts of your audio file. Use the following steps to apply a compressor and apply as needed throughout the entire audio editing process:

   1. Click Effects.
   2. Click Compressor.
   3. Drag the slider bar next to "Ratio" so that the line in the graph at the top drops slightly below it's the default position. You can also reduce the floor noise and threshold.
   4. Click Preview to hear what it sounds like. When you are satisfied with how it sounds, #*Click Ok to apply the effect when satisfied with the review.
5. How to Remove Echo from Audio Picture 7
   Get a noise profile. A noise profile is a sample of the audio that is used to reduce excess noise using the Noise Reduction effect. Use the following steps to get a noise profile:

   1. Click and drag to highlight a section of the audio that has an example of the noise you want to reduce. For example, you can highlight the excess sound that can be heard after a word is spoken.
   2. Click Effects in the menu bar at the top.
   3. Click Noise Reduction.
   4. Click Get Noise Profile.
   5. Close out of the window.
6. How to Remove Echo from Audio Picture 8
   Apply Noise Reduction. Noise Reduction uses the noise profile you just captured to reduce excess noise in the audio file. If there are still sections of your audio where an echo can be heard after applying Noise Reduction, you can take another Noise Profile and apply more Noise Reduction. Use the following steps to apply Noise Reduction:

   1. Double-click to highlight the entire audio wave.
   2. Click Effects in the menu bar at the top.
   3. Click Noise Reduction.
   4. Click Preview to hear how highlighted audio sounds with Noise Reduction.
   5. Drag the slider next to "Noise reduction (dB)" to increase or decrease the effect.
   6. Drag the slider next to "Sensitivity" to increase or decrease the volume at which the effect is applied.
   7. Click Preview to hear the audio again.
   8. Click Ok when satisfied with how the audio sounds.
7. How to Remove Echo from Audio Picture 9
   Apply Amplify (if needed). Since Noise Reduction makes the audio quieter, you can apply the Amplify effect to bring the volume back up. Don't apply too much amplification or the audio will sound distorted. You may also need to apply some more Compressor effect after applying Amplify. Use the following steps to apply Amplify:

   1. Double-click to select the entire audio file.
   2. Click Effects in the menu bar at the top.
   3. Click Amplify.
   4. Drag the slider below "Amplification (dB)" to the right.
   5. Check Allow Clipping.
   6. Click Preview to hear the audio with the effect.
   7. Click Ok if you are satisfied with how the audio sounds.
8. How to Remove Echo from Audio Picture 10
   Apply a Low Pass or High Pass Filter (if needed). Depending on how your audio sounds, you may need to apply a low or high pass filter. If the audio sounds high pitched with a lot of hisses, apply a low pass filter. If it sounds low and muffled, apply a high pass filter.

   1. Click Effects menu.
   2. Click Low-Pass Filter or High-Pass Filter, depending on which effect is needed.
   3. Use the pull-down menu to select the Rolloff (dB per octave) range. Your options are between 6 dB to 48 dB.
   4. Click Preview to hear the audio sounds
   5. Click "Ok" to apply the effect when you are satisfied with how it sounds.
9. How to Remove Echo from Audio Picture 11
   Apply Graphic EQ (if needed). Graphic EQ (often referred to as Equalizer) is used to shape the overall tone of an audio file. Use the slider bars in the effect window to adjust the tone frequencies of the audio file. Drag them above the line in the center to increase the frequencies and drag them below the line to decrease the frequencies. The slider bars on the left effect the low, bass frequencies. The sliderbars on the right effect the high-pitched, treble frequencies. The slider bars in the middle effect the mid-tones in between the bass and the treble. Use the following steps to apply Graphic EQ:

   1. Click Effects.
   2. Click Graphic EQ.
   3. Use the slider bars at the bottom to adjust the frequencies in the audio file.
   4. Click Preview to hear the audio with the EQ.
   5. Click Ok to apply the effect when you are satisfied with how the preview sounds.
10. How to Remove Echo from Audio Picture 12
    Export the audio file. Once you are satisfied with how the audio file sounds, you can export it so that it can be played in your media player. To export the audio file:

    1. Click File in the menu bar at the top.
    2. Select Export
    3. Click Export as MP3.
    4. Click Save.
11. How to Remove Echo from Audio Picture 13
    Save the project. If you plan on editing the audio file more in the future, you should save the project. To save the project:

    1. Click File. in the menu bar at the top.
    2. Click Save Project
    3. Click Ok in the popup menu.