When voice volume varies between clips in Premiere

To change your interface language, open the profile icon in Creative Cloud, then Preferences → Language → Default install language, and choose your preferred language. Adobe states that already-installed apps must be reinstalled for the change to apply. Save your work before reinstalling and check the official language-change instructions.

When average loudness differs between clips

Adobe's official instructions describe selecting clips in the timeline, opening Window → Essential Sound, checking the audio type, then applying Loudness → Auto-Match. Labels may differ by version and interface language, so refer to the English names as well. This is a way to match perceived loudness across clips.

If the difference between quiet speech and screams within one file still sounds large, distinguish matching the overall level from reducing dynamics within the file. LevelUp Audio can serve as a separate post-processing step to reduce volume differences over time in an existing recording.

Avoid strongly processing the same voice twice

Combining Premiere effects with LevelUp Audio processing may reduce dynamics more than intended or raise noise further. After importing the processed file, check whether existing effects still apply, and compare original and processed clips at the same position. Choose which effects to keep based on the recording and your editing goals.

Prepare the sound while keeping your video edit

While editing video, you can process a separate microphone file, save it as 24-bit WAV, and compare it with the original audio in your editing project. This site does not open Premiere project files or modify timelines. Batch processing multiple files is not currently supported either.

Saving a new video from the site retains only the selected video and audio tracks. For projects requiring subtitles and additional tracks, keep the original video and editing project, and use the processed WAV as a separate audio asset.

Check both the numbers and the sound

LevelUp Audio targets −16 LUFS average loudness and −1.5 dBTP true peak. These values will not suit every delivery requirement. Adobe's Loudness Meter measures your edited output, so check the final sequence against the required specifications. The result displayed on this site does not replace measuring the loudness of your entire final edit.

References: Adobe automatic loudness matching, Adobe Loudness Meter. This guide is based on Adobe's official feature descriptions, rather than direct testing of the currently installed Premiere interface.