PHIXER for ENG / field dual-mic interview stereo that must fold to mono TV
ENG kits, field interviews, and dual-mic standups often record stereo (lav + boom, reporter + guest, camera stereo pair). Living-room TVs, hotel screens, and many broadcast folds still sum L+R to a single speaker. What feels solid in cans can thin on air or on the set. Check fold-down and phase before the package leaves the truck. Free phase-repair helps after polarity and timing. It is not a broadcast limiter, not a dialog cleaner, and not a substitute for a true mono listen on a small speaker.
Download PHIXER free YouTube tutorial
PHIXER is free stereo phase-repair (VST3/CLAP/AU · Win/Mac/Linux) from Riverflux Audio. Frequency-aware phase rotation for leftover L/R fights on stereo material. It is not a dialog denoiser, not a time-aligner, not a stereo widener, and not a substitute for polarity, delay matching, or a real mono / TV-speaker check. Use it after hygiene, when residual spectral cancellation remains on a stereo interview path you must keep stereo under fold to mono TV.
Three ENG / field dual-mic failure modes
- Mono TV / broadcast fold. Interview body softens, guest lav thins, stereo ambience swishes when the plant or TV sums L+R. Habit: true L+R sum on the ENG stereo bounce / package print.
- Radio / FM cousin. Broadcast fold-down is the same L+R story as a mono TV path. Cousin guide: PHIXER for Radio / FM Fold-Down.
- TV dialog / stereo beds cousin. Living-room mono TV speakers need the same fold habit under dialog. Cousin guide: PHIXER for TV Dialog / Stereo Beds.
Fast ENG dual-mic / mono-TV audition (about 60 seconds)
- Sum L+R on the ENG stereo bounce, package print, or monitor controller mono. Listen to reporter body, guest lav, and ambience under the interview.
- A/B stereo vs mono. Note what disappears on fold: S and SH consonants, lav low-mid, wide camera stereo under lines.
- Mute wide FX / Haas / side-heavy verbs briefly under a dual-mic pass. Note which path thins the TV fold.
- Confirm on a small speaker or single earbud (TV / hotel-set proxy), then again after any loudness / limiter / encode pass, not only before cleanup.
Honest order of fixes (before spectral phase rotation)
1. True mono / L+R listen on the ENG delivery path
Hard L+R sum on the stereo package or LoRo-style bounce. Habit: mono compatibility checklist and the 60-second audition above.
2. Polarity if a path flips
Lav vs boom, reporter vs guest, camera stereo vs wireless. Flip polarity when body returns. Guide: polarity vs phase.
3. Timing / delay-align before spectral tools
Nudge dual mics and dual-path beds a few ms. Spectral rotation is not a substitute for timing.
4. Prefer correlated voice and lows for the TV path
Keep critical interview voice and low-mid correlated. Put width in sides that survive fold. Related: radio / FM fold-down and TV dialog / mono TV speakers.
5. Only then audition residual L/R spectral fights
If a stereo ENG path must stay stereo and fold still hollows a band after the steps above, gentle frequency-aware phase rotation can help. Prove it with mono A/B. Watch the YouTube tutorial and the mono demo.
ENG / field dual-mic path types
| Setup | Common mono failure | First fix |
|---|---|---|
| Lav + boom interview | Fine in cans, thin on mono TV | True L+R + polarity then timing |
| Reporter + guest dual wireless | One voice soft-drops on fold | Polarity; correlated center |
| Camera stereo pair under standup | Ambience swish, voice thin on set | Hard mono bounce check |
| ENG package for plant / affiliate | OK in truck, hollow on living-room mono | Small-speaker proxy after encode |
| Haas / wide beds under lines | Swish or cancel on fold | Less width in lows; correlated center |
| Social cut of the package | TV mix hollow on phone | Phone speaker check; checklist |
Radio fold and TV dialog cousins (short version)
- Radio / FM fold-down shares the same L+R habit as a mono TV speaker.
- TV dialog / stereo beds already demand mono-safe centers under voice.
- Polarity and timing still come first. Spectral tools after residual L/R fights only.
- Full write-ups: PHIXER for Radio / FM Fold-Down · PHIXER for TV Dialog / Stereo Beds.
When not to reach for PHIXER
- Wrong polarity on lav vs boom or reporter vs guest (flip polarity first).
- Obvious attack misalignment (nudge first).
- You only need a mono interview print, not a stereo path under fold.
- Loudness, dialogue IQ, RF dropouts, or encoder problems (wrong tool).
- Honesty list: When not to use PHIXER.