Vim li cas cov neeg nrov nrov distort? Yuav ua li cas hnyav nws cuam tshuam txog lub suab zoo?
Loudspeaker distortion yog hais txogWervormform deformationThaum lub sijhawm electroacousic hloov dua siab tshiab, nrogQhov tshwm sim txaus ntshaiRau lub suab zoo .} kev tshuaj ntsuam xyuas:
I {.} distortion Matrix: Ua Rau & Sonic cuam tshuam
| Distortion hom | Tiam sis | Kuaj xyuas kev xav | Kev puas tsuaj loj |
|---|---|---|---|
| Thd (harmonic) | Sib nqus nonlinearity → Integer Harmonics | HARD / MEATALL PURBRE | ★★★★☆ |
| IMD (instmodulation) | Ntau lub suab tau sib cais → sib txawv lub suab | Muddy / Plab ntawm kev nthuav dav | ★★★★★ |
| Nyob | Diaphragm inertia → phiajcim lag | Blunted tawm tsam / txiav tawm lwj | ★★★★☆ |
| Caij | Zaus-lub sij hawm ua haujlwm | Tsaus muag | ★★★☆☆ |
| Clipping | Kev txiav txim siab rau lub cev → WaveForm Truncation | Crackling / pob ntseg-tho cov khoom cuav | ★★★★★ |
📉 Tseem ceeb pib: Human ears detect THD >0.5%; >3% rhuav tshem cov kev ua haujlwm fanced high-forn-Forruction (AES kev tshawb fawb tau tseeb) .
II {. kev sib ntaus sib tua lub cev ntawm distortion
{{0 {}} Sib Nqus Circuit Court
Teb asymmetry: OFF-CENTER LUB VOIL txo qhov tawg los ntawm 30% → khib-xaj kev ua kom muaj kev phom sij
Eddy kurents: Lwm txoj kev ua txhaum uas ua rau muaj kev tawm tsam
kev ua lej
Distorte α \\ fac {eddy \\ tam sim no tsis muaj zog} {{permeability}
2. diaphragm mutiness
Breakup qauv: High-zaus hauv zos vibrations
Piv Txwv: Txhuas Cij Ciav Hlau Rau 7 Z Zav @ 5kHz → Phase Cham →+15 Db resonance
Ntug Diffraction: Sound wave interference at surround → Comb filtering (>8kHz)
3.} Kev Sib Koom Tes Cua
Air Compression nonlineEarity: Cov kev mus ncig loj dua huab cua elasticity → subtharmonics (50Hz teeb liab tsim 25Hz cab)
Cua hlob nrov: Vortices los ntawm Diaphragm suab lus → ntxiv cov suab (200-500 hz; worsens nrog rhiab)
Iii {. Lub Suab Zoo Rissionination
Qhia Txog Kev Cia Siab
Violin Harmonics (3K {{-10 cmz) paug los ntawm IMD → Poob ntawm "Rosin Text"
Bass thaj tsam (40-80 hz) thd → suab paj nruag kab ua "cov drones nyuaj"
▶ Setstage Collapse
Phase shift >30 ° @ 1KHz → Vocal Cov Lus Qhia Kis Los Ntawm "Pinpoint" rau "Noj hmo"
Group delay >2ms → orchestral qhov tob tob hauv 2D
Mloog kev qaug zog
Clipping deporortion generates 7-10 Khz modonics → Cov plaub hau cell tiv thaiv (mob taub hau hauv 20 mins)
►ololden cov cai rau kev distortion tsawg
Lub Zog Sib Tw:
Amp rms=Hais Lus Rms × 1.2-1.5
Ntim Pob Kob ≤75% (20DB dynamic dynamic)
Impedance taming:
kev tsoo pob txha
# Ntsuas Cov Cuam Tshuam Nkaus Ntawm Rew # Ntxiv Parallel Rc Network ntawm Fo Peak
Kev Tswj Cov Thermal:
Txhua txhua 10 ° C Txias akoo suab tsis kam ↓ 4% → lub zog tuav ↑ 15%
XDEC Nto Nthuav Tawm Pls Khaws cov amp haum thiab tig lub pob ntim khawm tsis ntau tshaj 75% thiab hais lus tuaj yeem tau tsawg dua!