A persistent hiss or hum on the audio track of your home video or downloaded clip can ruin enjoyment of the video and prove distracting for viewers. Background noise from wind, electronic interference and data transfer errors can all cause hissing on a video soundtrack. Adobe Premiere Pro CS5 video editing and creation software comes with a spectral noise reduction effect tool that you can use to remove hissing from an audio track. The tool uses an advanced algorithm and bank of filters to help you eliminate audio disturbances from your video.
- Skill level:
- Moderately Easy
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Open the video file with the problematic audio track in Adobe Premiere Pro. The program separates and displays the video and audio tracks in a workspace pane.
Click the "Effects" tab in the bottom left of the screen. Alternatively, select "Window" in the main menu bar, and then choose "Effects" in the drop-down menu. Adobe Premiere Pro displays all available effects in a separate pane. Select the "Audio Effects" option, and then choose your audio type, such as MP3, to display all available audio effects. Select and highlight the "Spectral Noise Reduction" effect option, and then drag and drop it onto the audio track in the workspace.
Click to select the "Effect Controls" button in the workspace Monitor window. Click the right-arrow button next to "Spectral Noise Reduction" to expand the configuration options for this effect. Adobe Premiere Pro automatically applies the effect's default noise reduction algorithm to the selected audio clip, so press the "Play" button to see if the hissing has been removed from the clip. If you can still hear hissing, follow the next steps to make further adjustments.
Adjust the filter, max level, reduction and frequency settings in the expanded Spectral Noise Reduction effect configuration pane. You can also use the "Treble" setting to reduce high-frequency noises such as hissing or whistling. Use a combination of these settings to fine tune the audio and remove the hissing. Play the audio each time you make a change and continue to adjust these settings until you're happy with the results. Save the file to apply and store your changes.
Tips and warnings
- Click the "Default" button at any time during the procedure to remove all changes and restore the original audio track.
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