Oud / Middle Eastern lute multi-mic phase: bridge, soundboard, and bowl vs OH and room fold
Close spots on oud bridge, soundboard, and bowl feel huge and woody in the booth and in cans. On phone speakers or YouTube mono fold, body, Mid, and risha attack often thin or cancel against stereo OH and room paths that carry the same pluck a few milliseconds later. That is usually polarity and arrival time between 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 flamenco nylon, acoustic guitar, and kora: this page is about Middle Eastern oud (and related lute ensemble beds) alone. Cross-links: nylon guitar, acoustic guitar, kora, hand drums.
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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 oud / Middle Eastern lute multi-mic phase failure sounds like
- Risha attack and body boom huge in cans, thin on phones. Close bridge/soundboard mics share the same pluck a few ms apart from stereo OH or room.
- Low-course body hollow on YouTube. Spot + stereo bed + room stack cancels Mid when the platform folds.
- Tremolo / taqsim detail present in booth, gone on phone. Hard L/R across neck and bowl paths collapse on mono fold.
- Oud vs riq / percussion bed fight. Lute spots and hand-drum OH share energy without polarity hygiene.
- Fine in headphones, broken for remote viewers. Same destinations as YouTube / social mono, OBS livestream, flamenco / nylon guitar, acoustic guitar.
Fast mono audition (about 60 seconds)
- Solo the stream / mix bus (not only booth headphones). Flip a utility to mono.
- A/B oud bridge/soundboard spots muted vs open under stereo OH and room. Note what disappears: body, Mid, risha attack, low-course boom.
- Solo pairs: bridge vs bowl, oud vs riq/percussion, spot vs OH.
- Check correlation on the delivery bus, then with the full ensemble muted vs open.
Order of operations (before spectral phase rotation)
1. Polarity between spots and shared OH / room
Flip bridge or soundboard spots vs stereo OH, or oud vs percussion bed, when body or Mid return immediately on a clear pluck. Guide: polarity vs phase. Cousins: flamenco / nylon, acoustic guitar, kora.
2. Small delay align secondary paths to the hero pluck image
OH and room often arrive later than close bridge or bowl spots. A few samples of delay on the secondary often restores body better than EQ for "more boom."
3. One hero oud image to the stream or mix bus
Do not send every bridge, bowl, neck, and OH all hot into the livestream or print. Pick a hero Mid-safe bed (often a focused stereo OH plus selective spots), keep extras muted or low. Parallel stacks are classic thin-oud on phone fold. Related: overhead & room.
4. Prefer hero bridge / soundboard as the tone; quieter color spots
Secondary closes should color proximity and risha 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 low courses.
5. Skip wideners and Haas on oud beds before fold
Short-delay width and stereo imagers make booth headphones shimmer and phones hollow. Keep critical low-mid and body boom 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 |
|---|---|---|
| Bridge/soundboard spots + stereo OH | Body / Mid cancel on stream | Polarity; delay secondary; quieter secondary |
| Oud spot + room / OH | Hollow fundamental, thin attack | Polarity + timing; hero Mid-safe path |
| Oud + riq / hand-drum bed | Attack vs bed fight on phone | Polarity + delay; hero image |
| Stereo pair hard L/R across neck/bowl | 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 spots vs OH vs room vs percussion bed
Name bridge, soundboard, bowl, riq/frame drum, 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 ensemble
Solo body and Mid in mono. Then open risha attack and low-course boom 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 / maqam set 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 spot+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 spots | Polarity; delay secondary; quieter secondary | Arrival-time fight |
| Oud + riq harsh and hollow | Polarity; timing; hero Mid-safe path | Dual-path lute + percussion |
| 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 oud 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 spots/OH.
- You want PHIXER to make the oud louder, wider, or "more boom." 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 spots vs OH/room → delay-align secondary → one hero image → quieter extras under hero → skip Haas/imagers → mono-check with full ensemble → PHIXER only for leftover stereo cancellation on a stereo bed → fold again for stream / studio print.
Related guides
- Flamenco / classical nylon guitar multi-mic phase
- Acoustic guitar multi-mic phase
- Kora / West African harp multi-mic phase
- Lever / pedal concert harp multi-mic phase
- Percussion / hand drums multi-mic phase
- Overhead & room mic 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)