Morin khuur / Mongolian horsehead fiddle multi-mic phase: bow + bridge vs body resonance, room/OH, and ensemble fold
Close spots on the morin khuur bow and bridge feel huge in the booth and in cans. On phone speakers or YouTube mono fold, bow attack, Mid, and body resonance often thin or cancel against stereo OH and room paths that carry the same phrase a few milliseconds later. Throat-singing / khoomei companion beds and Mongolian ensemble stacks add the same problem. That is usually polarity and arrival time between bow/bridge spots and shared beds, plus a stereo bed that was never folded before send. Fix polarity and small delays first. Frequency-aware phase repair belongs only after residual L/R fights remain on stereo beds before mono fold. Distinct from erhu, string section, Hardanger fiddle, and nyckelharpa: this page is about Mongolian morin khuur / horsehead fiddle (and khoomei / Mongolian ensemble companion beds) alone. Cross-links: erhu, string section, Hardanger, nyckelharpa, field, livestream.
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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 compressor, not a widener, and not a substitute for mic placement or mono audition of the stream or mix bus. Polarity and timing first; PHIXER after residual spectral fights.
What morin khuur / horsehead fiddle multi-mic phase failure sounds like
- Bow and bridge bite huge in cans, thin on phones. Close bow or bridge spots share the same phrase a few ms apart from stereo OH or room.
- Warm body resonance hollow on YouTube. Spot + stereo bed + room stack cancels Mid when the platform folds.
- Body secondary present in booth, gone on phone. Hard L/R across bow/bridge and body resonance paths collapse on mono fold.
- Morin khuur hero vs khoomei / throat-singing / Mongolian ensemble bed fight. Companion beds and horsehead spots share mid energy without polarity hygiene.
- Fine in headphones, broken for livestream viewers. Same destinations as YouTube / social mono, OBS livestream, erhu, string section.
Fast mono audition (about 60 seconds)
- Solo the stream / mix bus (not only booth headphones). Flip a utility to mono.
- A/B morin khuur bow/bridge spots muted vs open under stereo OH and room. Note what disappears: bow bite, Mid, body resonance, drone warmth.
- Solo pairs: bow vs bridge, morin khuur vs khoomei bed, spot vs OH, body secondary vs hero close.
- Check correlation on the delivery bus, then with the full Mongolian ensemble / throat-singing bed muted vs open.
Order of operations (before spectral phase rotation)
1. Polarity between bow/bridge spots and shared OH / room / body
Flip bow or bridge spots vs stereo OH, or morin khuur vs khoomei companion bed, when body or Mid return immediately on a clear phrase. Guide: polarity vs phase. Cousins: erhu, string section, Hardanger, nyckelharpa.
2. Small delay align secondary paths to the hero morin khuur image
OH, room, and body resonance secondary often arrive later than close bow/bridge spots. A few samples of delay on the secondary often restores body better than EQ for "more horsehead fiddle."
3. One hero morin khuur image to the stream or mix bus
Do not send every bow, bridge, body, room, and OH all hot into the livestream or print. Pick a hero Mid-safe bed (often a focused stereo OH plus selective bow/bridge spot), keep extras muted or low. Parallel stacks are classic thin-morin-khuur on phone fold. Related: overhead & room.
4. Prefer hero bow/bridge as the tone; quieter color spots
Secondary body closes should color proximity and resonance identity, not replace the hero image for the stream mix. If every close sits at full level under a loud OH, mono fold almost always hollows the horsehead bed.
5. Skip wideners and Haas on morin khuur beds before fold
Short-delay width and stereo imagers make booth headphones shimmer and phones hollow. Keep critical low-mid and body resonance centered for stream and print.
6. Only then audition residual L/R spectral fights
If a stereo bed 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, rotator bypassed vs engaged.
Path types and typical failure modes
| Path | Common mono failure | First fix |
|---|---|---|
| Bow/bridge spots + stereo OH | Body / Mid cancel on stream | Polarity; delay secondary; quieter secondary |
| Morin khuur spot + body + room | Hollow bow attack, thin resonance | Polarity + timing; hero Mid-safe path |
| Morin khuur + khoomei / ensemble bed | Hero vs companion fight on phone | Polarity + delay; hero image |
| Stereo pair hard L/R across bow/body | Huge in cans, thin on phone | Center critical lows; simplify width |
| Board / matrix → OBS / YouTube | Fine in booth, hollow for viewers | OBS livestream / YouTube mono |
Studio / livestream checklist (to send)
1. Label bow vs bridge vs body vs OH vs room vs khoomei / ensemble bed
Name bow spots, bridge, body resonance, throat-singing companion, stereo OH, and room so operators know what hits the livestream or print. Ambiguous stacks get left open and comb on fold.
2. Mono-check delivery bus alone, then with full Mongolian ensemble / khoomei bed
Solo bow body and Mid in mono. Then open resonance and bridge bite in mono. Note fights between secondary color and hero bed.
3. Watch phone, YouTube, and social destinations
Most remote viewers hear mono or near-mono. Guides: YouTube / social mono, OBS livestream, TikTok / Reels / Shorts.
4. Re-check after stand / seating / angle moves
Instrument angle and mic height change distance and bleed. Flip polarity again after you move stands, change OH height, or re-seat the player.
When PHIXER helps
- The material is already stereo and must stay stereo (stereo OH, stereo room or board print), not a mono close you fake-widened.
- Polarity, delay align, and hero-path levels 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 or Mid without wrecking the image.
- You are not using it to "fix" unaligned bow+OH under room, or to replace a time-align edit on the matrix.
Decision table
| You notice… | First try | Why |
|---|---|---|
| Body thins when OH opens under bow/bridge spots | Polarity; delay secondary; quieter secondary | Arrival-time fight |
| Morin khuur + khoomei harsh and hollow | Polarity; timing; hero Mid-safe path | Dual-path spot + companion |
| Fine in booth, thin on phone | Mono delivery bus; pull extras | Booth ≠ viewer fold |
| Stereo bed still cancels by band | PHIXER on that stereo bed | Residual spectral L/R fight |
| Mono morin khuur alone is dull | Tone / EQ / gain / mic choice | Not an L/R repair job |
When NOT to use PHIXER here
- You have not mono-auditioned the stream / mix bus yet.
- The fix is obviously polarity, delay, one hero image, or quieter secondary under bow/OH.
- You want PHIXER to make the morin khuur louder, wider, or "more Mongolian." Wrong job.
- The path is mono and the print problem is balance or EQ.
- See also when not to use PHIXER.
Quick path: Solo delivery bus in mono → polarity bow/bridge spots vs OH/room/body → delay-align secondary → one hero image → quieter extras under hero → skip Haas/imagers → mono-check with full Mongolian ensemble / khoomei bed → PHIXER only for leftover stereo cancellation on a stereo bed → fold again for stream / studio print.
Related guides
- Erhu / Chinese bowed multi-mic phase
- String section multi-mic phase
- Hardanger fiddle / hardingfele multi-mic phase
- Nyckelharpa / Swedish folk multi-mic phase
- Field recording / dual recorder outdoor phase
- Polarity vs phase rotation
- When not to use PHIXER
- YouTube / social mono fold checklist
- Twitch / OBS livestream mono fold
Watch
- PHIXER tutorial + how it sounds (walkthrough with audio examples)