Adobe 22011292 User Guide - Page 125

ADOBE AUDITION 111 User Guide Hard Limiter dialog Here are the major components of the Hard Limiter window: Limit Max Amplitude to This is the maximum sample amplitude that will be allowed. To avoid clipping when working with 16-bit audio, set this value to no more than -0.1dB; if you set it to -0.5dB, you'll have a little more headroom for any future edits. Boost Input by Before performing the limiting, the audio may be pre-amplified first. To make a selection louder and ensure that no clipping occurs, you can use this to amplify it and soften the regions that would otherwise clip (similar to what is commonly done with the audio on TV commercials). Enter the desired amplification value, as measured in dB. Look Ahead Time This is the amount of time (measured in milliseconds) that it will generally take to attenuate the audio before the loudest peak will be hit. Note: If this value is too small, audible distortion effects may be heard. Make sure the value is at least 5 ms. Release Time This is the time (measured in milliseconds) that it takes for the attenuation to rebound back 12dB (or roughly the time it would take audio to resume normal volume if an extremely loud peak was encountered). Generally around 100 ms (the default) works very well, and will preserve very low bass frequencies. Note: If this value is too large, audio may just stay very quiet, and not resume normal levels for a while. Link Left & Right If checked, both channels vary in loudness together. This preserves the stereo image of the source. To have the left and right channels vary independently, uncheck this option. Gather Statistics Now Press this button to update the Clipping Statistics display. The Clipping Statistics fields show what percentage of the audio would clip if limiting were not performed. If you change any of the input parameters, you'll probably want to click this button.