Kantele multi-mic phase: Finnish / Baltic psaltery strings vs soundboard, body, OH, and folk bed fold
Close spots over Finnish kantele courses feel glassy and present in the booth and in cans. On phone speakers or YouTube mono fold, pluck attack, Mid bloom, and drone-course body often thin or cancel against soundboard, body, stereo OH, and room paths that carry the same phrase a few milliseconds later. Karelian and Finnish folk beds (jouhikko, voice, accordion, fiddle) stack the same problem. That is usually polarity and arrival time between string 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 lever/pedal concert harp, Chinese guzheng, and Middle Eastern qanun pages: this page is about Finnish kantele and Baltic psaltery (5 to 40+ string box zithers with diatonic or chromatic courses, played on the lap or table). Cross-links: lever harp, guzheng, qanun, dulcimer, 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 Finnish kantele multi-mic phase failure sounds like
- Course pluck huge in cans, thin on phones. Close string spots share the same phrase a few ms apart from stereo OH, room, or soundboard beds.
- Drone courses and board bloom hollow on YouTube. Spot + stereo bed + room stack cancels Mid when the platform folds.
- Body / soundboard proximity present in booth, gone on phone. Hard L/R across string and board paths collapse on mono fold.
- Kantele hero vs jouhikko / voice / accordion / fiddle folk bed fight. Finnish folk beds and kantele spots share mid energy without polarity hygiene.
- Fine in headphones, broken for livestream viewers. Same destinations as YouTube / social mono, OBS livestream, lever / pedal harp, guzheng.
Fast mono audition (about 60 seconds)
- Solo the stream / mix bus (not only booth headphones). Flip a utility to mono.
- A/B kantele string spots muted vs open under stereo OH and room. Note what disappears: pluck bite, Mid, drone-course body, board bloom.
- Solo pairs: strings vs soundboard, body vs OH, kantele vs jouhikko/voice/accordion bed, spot vs room.
- Check correlation on the delivery bus, then with the full Finnish folk bed muted vs open.
Order of operations (before spectral phase rotation)
1. Polarity between string spots and shared OH / room / soundboard
Flip string or board spots vs stereo OH, or kantele vs companion bed, when body or Mid return immediately on a clear phrase. Guide: polarity vs phase. Cousins: lever / pedal harp, guzheng, qanun.
2. Small delay align secondary paths to the hero kantele image
OH, room, and soundboard secondary often arrive later than close string spots. A few samples of delay on the secondary often restores body better than EQ for "more kantele."
3. One hero kantele image to the stream or mix bus
Do not send every string, board, body, room, and OH all hot into the livestream or print. Pick a hero Mid-safe bed (often a focused stereo OH plus selective string spot), keep extras muted or low. Parallel stacks are classic thin-kantele on phone fold. Related: overhead & room.
4. Prefer hero courses as the tone; quieter color spots
Secondary board and body closes should color proximity and board 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 psaltery bed.
5. Skip wideners and Haas on kantele beds before fold
Short-delay width and stereo imagers make booth headphones shimmer and phones hollow. Keep critical low-mid and drone-course body 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 |
|---|---|---|
| String spots + stereo OH | Body / Mid cancel on stream | Polarity; delay secondary; quieter secondary |
| Kantele spot + soundboard/body + room | Hollow pluck attack, thin drone bloom | Polarity + timing; hero Mid-safe path |
| Kantele + jouhikko / voice / accordion bed | Hero vs companion fight on phone | Polarity + delay; hero image |
| Stereo pair hard L/R across courses/board | 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 strings vs soundboard vs body vs OH vs room vs companion bed
Name string spots, board, body, jouhikko/voice/accordion/fiddle, 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 Finnish folk bed
Solo course pluck and Mid in mono. Then open board bloom and drone courses 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
Lap vs table placement, course 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 strings+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 string spots | Polarity; delay secondary; quieter secondary | Arrival-time fight |
| Kantele + companion 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 kantele 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 strings/OH.
- You want PHIXER to make the kantele louder, wider, or "more Finnish folk." 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 string spots vs OH/room/soundboard → delay-align secondary → one hero image → quieter extras under hero → skip Haas/imagers → mono-check with full Finnish folk bed → PHIXER only for leftover stereo cancellation on a stereo bed → fold again for stream / studio print.
Related guides
- Lever / pedal concert harp multi-mic phase (distinct: concert harp vs Finnish kantele / Baltic psaltery)
- Guzheng / Chinese zither multi-mic phase
- Qanun / Middle Eastern zither multi-mic phase
- Hammered dulcimer / mountain dulcimer / zither 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)