Understanding how Premiere processes audio

You can process an audio clip in several ways: adjusting volume and pan/balance levels (either directly in the Timeline or by using the Audio Mixer window), choosing a menu command for a selected clip, or applying an audio effect. Understanding the order in which Premiere processes audio can help you plan audio adjustments.

When you preview, play, or export a video, Premiere first converts its audio (one frame at a time) using the settings you specify in the Audio Settings dialog box. If you selected stereo as one of the audio settings, additional stereo commands located in the Clip > Audio Options menu (such as Duplicate Left or Mute Right), are then processed. Audio effects you have applied are processed next, followed by any pan/balance or volume adjustments in the Timeline audio track for the clip. Finally, Premiere processes any gain adjustments you applied using the Clip > Audio Options > Audio Gain command.

Mixing Audio > Understanding how Premiere processes audio