Wind, camera noises and bad transfers can cause audio to have an organic hiss. While editing in Adobe Premiere CS5, that hiss can disrupt dialogue or natural sounds that need to be captured. Instead of recording the audio again, the spectrum noise reduction effect will help reduce the sound while keeping all other parts of the audio intact. The effect takes a lot of tweaking to perfect, but almost all hissing can be removed with the effect.
Click on the "Effects" tab in the Adobe Premiere CS5 workspace. The default location is in the bottom left corner of the screen, but it may be located somewhere else. If you cannot find it on the screen, go to "Window" and select "Effects."
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Click on "Audio Effects," select your audio type and then load the selection of effects. Drag and drop the "Spectral Noise Reduction" effect onto the audio file that you want to apply it to.
Click on the "Effect Controls" tab next to the "Monitor" window. Look for the "Spectral Noise Reduction" effect and click on the right arrow to expand the effect.
Click on the "Eyeball" icon next to any video or audio files. This will make it so that only the audio plays and you do not get distracted by other media.
Press "Play" to see the adjustments that were automatically made. Use a pair of headphones to fully hear the difference and block out distracting noises.
Adjust the settings in the "Spectral Noise Reduction" effect. You can change the "Freq," "Reduction," "Filter" and "Max Level" within the effect. The "Default" icon sets everything back to normal if you make mistake.
Play the audio clip after you adjust each setting. One small change can make a big difference, so it's important to constantly preview the audio file and make note of differences.
Repeat this process on any other audio clips with hissing. Write down settings to keep adjustments the same between audio files that feature the same hissing.