PHIXER for Film / TV: LoRo fold-down, ADR, and stems delivery
Trailer beds and FX stems sound huge in the suite. On a LoRo fold, hotel TV, or phone check, bass thins, impacts hollow, and music beds lose weight under dialogue. ADR stacks and stem deliveries can cancel the same way. That is fold-down physics and multi-take phase, not a broken limiter. Free phase-repair helps after polarity and timing. It is not an LtRt encoder, and it does not replace a true mono / LoRo listen.
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 loudness processor, not an LtRt encoder, and not a substitute for polarity, timing, or a real mono/LoRo check. Use it after hygiene, when residual spectral cancellation remains on stereo beds, FX prints, or dialogue stacks you must keep stereo.
Three film / TV failure modes this page covers
- LoRo fold-down. Stereo music beds, trailer boom, and hard L/R FX hollow when summed. Full checklist: Film / TV LoRo fold-down mono compatibility.
- ADR / dialogue multi-take. Comp stacks, dual-mic production dialogue, and lav+boom outdoor paths fight by band. Guide: Dialogue / ADR multi-take phase.
- Stems delivery. Printed music / FX / dialogue stems cancel on the client fold or broadcast check even when the session mix sounded fine. Guide: Stem bus / stem delivery phase.
Fast LoRo / mono audition (about 60 seconds)
- Sum L+R (or your facility LoRo monitor path). Listen under dialogue and alone.
- A/B music bed and FX with dialogue muted vs open. Note what disappears: chest, impact body, vocal mid.
- On dual-path dialogue (lav+boom, dual take, printed ADR stack): mute one path briefly. Note which path thins the fold.
- Confirm on a phone speaker or hotel-TV-like mono path, then again on the delivery stems, not only the session master.
Honest order of fixes (before spectral phase rotation)
1. True mono / LoRo listen
Facility LoRo path or a hard L+R sum. Full habit: mono check workflow and null-test + mono-check.
2. Polarity if a path flips
Interfaces, field recorders, and some DSP invert. Flip Ø when body returns immediately. Guide: when not to use PHIXER (polarity first).
3. Timing / align before spectral tools
ADR comps and lav+boom need sample-accurate alignment first. Spectral rotation is not a substitute for a few ms of delay.
4. Prefer mono-safe delivery for beds and stems
Keep critical low-mid energy correlated. Put width in sides that survive fold. Related: LoRo fold-down and stem delivery.
5. Only then audition residual L/R spectral fights
If a printed stereo music bed, FX stem, or dialogue stack 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.
Film / TV path types
| Setup | Common mono failure | First fix |
|---|---|---|
| LoRo / broadcast fold | Fine in suite, thin on delivery | True LoRo listen; mono-safe bed |
| Trailer music / FX bed | Boom / impact hollow under VO | Mute fighting width; polarity |
| ADR / dialogue multi-take | Comp stack cancels mid | Align; one hero take; polarity |
| Lav + boom / field dual path | Body thins when both open | Timing; mute weaker path |
| Stems delivery (DX / MX / FX) | Session OK, stems hollow | Audition stems alone; see stems guide |
| Hotel TV / phone check | Huge in nearfields, gone on phone | Phone speaker check before ship |
When free PHIXER belongs in a film / TV toolkit
- The material is already stereo and must stay stereo (music bed, FX print, dialogue stack), not a mono boom you fake-widened.
- Polarity, timing, and LoRo listen are cleaned up, but fold still hollows a band of the spectrum.
- You can A/B mono with the plugin bypassed and hear clearer body without wrecking the image.
- You are building a mono / LoRo habit on the stems, not using PHIXER to paper over three open dialogue paths.
- Budget is zero: free download on Gumroad (Win/Mac/Linux · VST3/CLAP/AU).
Decision table
| You notice… | First try | Why |
|---|---|---|
| Music bed thins on LoRo | Mute width; polarity | Anti-correlated low-mid bed |
| ADR stack cancels mid | Align; one hero take | Timing before spectral tools |
| Session OK, stems hollow | Audition stem bus alone | Printed stem ≠ session master |
| Stereo bed still cancels by band | PHIXER on that stereo bed | Residual spectral L/R fight |
| Dialogue alone is dull | Gain / EQ / take choice | Not an L/R repair job |
When NOT to use PHIXER here
- You have not LoRo-auditioned the delivery stems or a phone speaker yet.
- The fix is obviously one hero dialogue path, polarity, or quieter stereo width under VO.
- You want PHIXER to make the mix louder, wider, or to replace an LtRt / surround encoder. Wrong job.
- The path is mono and the print problem is level or tone.
- Full list: when not to use PHIXER.
Quick path: LoRo / mono listen → one hero dialogue path → polarity if a path flips → align ADR / lav+boom → mute fighting stereo width under VO → phone or hotel-TV check → PHIXER only for leftover stereo cancellation on beds or stems → confirm again on the delivery stems.