Can I raise only the quiet speaker with these tools?
A global boost lifts everyone equally. To change one voice only, you need separate tracks or an editor that can adjust sections. Browser tools work best when the whole file is under-level.
How to Balance Interview Volume
Interviews often fail not because of content, but because one mic is hot and the other is distant. Listeners keep reaching for the volume knob. This workflow does not replace a full DAW edit, but it gets a two-person recording into a listenable range quickly.
Step 1 — Map the problem
Play the file and mark timestamps where speaker A is fine and speaker B disappears. If the whole file is quiet, you need a global lift. If only one person is soft, you may need separate takes or a DAW — browser tools shine when the imbalance is moderate or the whole program is under-level.
Step 2 — Measure the full file
Load the interview into Audio Quality Check. Note integrated LUFS and whether peaks already clip on the loud speaker. If the loud side is already at full scale, a global boost will hurt; prefer trimming noise and only raising a quieter export if you can isolate it.
Step 3 — Global level when both are soft
When both voices sit low and peaks have headroom, use Volume Booster to normalize. Then re-measure. Aim for speech-friendly loudness (often around −16 LUFS integrated) without pinning every laugh to 0 dBFS.
Step 4 — Clean edges and long gaps
Use Audio Trimmer for start/end. For long internal silences, Silence Finder helps you see gaps; cut only what makes the conversation drag.
Step 5 — Final listen on headphones and a phone speaker
Uneven interviews show up on small speakers. If one person still vanishes, plan a proper multi-track edit later — do not keep boosting until the loud speaker distorts.
Why interviews sound uneven
Most imbalance comes from the recording, not the edit. A speaker who sits farther from the microphone is quieter, and moving a few centimetres can change the level by several decibels. Different microphones, different gain settings and different room positions add to the gap. Knowing the cause helps you decide whether a global lift is enough or whether the problem needs separate tracks.
Record the next interview more evenly
- Give each speaker their own microphone and keep both at a similar distance from the mouth.
- Do a short level test with each person speaking at normal volume before the real recording starts.
- Aim for peaks well below the top of the meter, so a laugh or an excited answer does not clip.
- If you can, record each person on a separate track so levels can be fixed later.
When this workflow is not enough
If speakers were recorded on separate tracks, balance them in a multi-track editor. Browser tools work on the mix you already have; they cannot pull a buried guest out of a single mono file beyond simple gain.
Two mics, one file
Remote interviews bounced to a single stereo or mono mix hide the real problem: you cannot raise the guest without also raising the host if both share the same track. When imbalance is severe, ask for separate tracks next time. This recipe still helps when the gap is moderate or when the whole program was exported too quiet.
Mark the worst thirty seconds. If the loud speaker already saturates there, global boost is the wrong lever. If both speakers have headroom, normalize is safe. If only the guest is soft and the host is fine, a DAW with clip-gain on regions will beat any single-file booster.
Dialogue and music beds
Some interviews drop in theme music that is louder than speech. After you level voices, the bed may feel aggressive. Either lower the bed in the original project or accept a slightly lower overall LUFS so dialogue stays comfortable. Quality Check on the final mix is more honest than metering the voice alone.
Sharing a “fixed” version
Keep the original file. Export a clearly named copy such as interview-balanced.wav so you can reopen the source if the boost was too strong on a different speaker. One careful pass is better than three stacked encodes.
Frequently asked questions
What loudness should an interview have?
Spoken content is often delivered around −16 LUFS, with some platforms and shows preferring slightly quieter targets. Check the destination’s guidance and measure with Audio Quality Check.
Should I trim before or after levelling?
Trim first so long silences and false starts do not affect the measurement, then measure and level the result.
Why does boosting make background noise louder?
Gain raises everything in the recording, including room tone and hiss. This is why a clean recording is more valuable than a large boost.