Each RX module features a preview button that allows you to audition the module's effect on the selected audio or project. By using preview, you don't have to apply the process to the file to hear the result, you can click Preview and adjust parameters as audio is playing back, allowing you to fine tune module settings without having to apply and undo them multiple times.
By
making a selection in your project, you can preview just that selection. If no
selection is made, playback will start from wherever you have placed the
playhead (cursor) in the project's timeline. While in preview mode, you can also
have RX loop through a selection of audio by turning on the loop feature on RX's
transport.
Buffering Playback
For more CPU-intensive settings, like Denoiser's B and C algorithms and highest quality Declicker settings, RX can buffer playback to allow you to preview these slower than real time processes. To adjust how long the buffer is, the menu next to the Preview button (+) opens the Preview Buffer Size control. As audio plays back in preview mode, audio that is being processed will be tinted red, showing you how far ahead of playback processing is happening.
Bypass
In the expanded menu next to the Preview button (+), you can also select the Bypass switch to jump back and forth between the preview and the raw audio file. This is useful for hearing how settings affect your file without having to apply the process.
NOTE: You can also preview multiple settings of the same module side by side using the Compare Settings window.