Daim ntawv teb los ntawm 17- xyoo tsav tsheb chaw tsim khoom - los ntawm Shenzhen Xuanda Electronics (XDEC)
TL; DR:Active Noise Canceling headphones saib yooj yim ntawm sab nraud - ib khob, lub microphone, tus tsav tsheb. Tab sis tus neeg tsav tsheb sab hauv txiav txim siab seb ANC lub voj sib txuas los yog sib ntaus nws tus kheej. Tom qab 17 xyoo tsim lub mloog pob ntseg tsav tsheb, peb tau pom peb hom tsis ua haujlwm uas tshwm sim tsuas yog tom qab cov khoom thauj khoom. Cov ntawv tshaj tawm no taug kev los ntawm lawv siv qhov tseeb tshaj - pob ntseg ANC qhov project peb tau khiav rau lub npe nrov European.
1. Tus nqi rov qab 22% uas tau pib tshaj tawm no
Xyoo tas los, German ANC lub mloog pob ntseg tau hu rau peb. Lawv tau xa Φ50mm hla- pob ntseg tsav tsheb los ntawm cov chaw muag khoom sab hnub tuaj European rau peb xyoos nrog tus nqi rov qab qis dua 1.5%. Thaum lawv hloov cov khoom siv mus rau cov chaw nyob rau sab hnub tuaj Asia kom txo tus nqi, thawj cov khoom lag luam tau rov qab los nrog 22% kev xa rov qab. Cov neeg siv kawg tau tshaj tawm ob qhov tsos mob:muffled midrange ntawm lub suab lem, thiabaggressive sibilance nyob ib ncig ntawm 6 kHz thaum ANC koom nrog.
Ob qhov tsos mob ploj mus thaum ANC Circuit Court raug kaw. Ob leeg yog tus tsav tsheb- cuam tshuam.
Dab tsi tshwm sim: qhov hloov pauv - tsav tsheb siv tib lub npe impedance (32Ω), tib daim ntawv lo rhiab heev (108 dB/mW), thiab tib lub cev qhov ntev ntawm daim ntawv spec. Tab sis F0 tau drifted ntawm 95 Hz mus rau 118 Hz, thiab rhiab heev kam rau ua yog ± 4 dB es tsis txhob ± 2 dB. ANC algorithm - tuned rau thawj tus tsav tsheb theem thiab nce profile - tam sim no ua haujlwm nyob rau hauv ib cheeb tsam uas tus tsav tsheb qhia tsis yog{12}} theem hloov pauv. Qhov tshwm sim: cov lus tawm tswv yim uas tus neeg siv tau hnov zoo li midrange poob thiab treble glare.
Qhov no yog ib qho kev ua tsis tiav hauv ntau tshaj - pob ntseg ANC.XDEC's 17-xyoo daim teb qhia txog kwv yees li 70% ntawm ANC tus neeg tsav tsheb rov qab-tus nqi tsis txaus siab rov qab mus rau F0 los yog rhiab heev rau kev sib tw, tsis yog hluav taws xob tsis xws luag.(Tau qhov twg los: XDEC teb cov ntaub ntawv, 2020-2025.)
2. Vim li cas tus tsav tsheb ANC tsis yog tus tsav lub mloog pob ntseg li niaj zaus
Tus tsav tsheb lub mloog pob ntseg passive yog txiav txim los ntawm lub suab zoo ib leeg. Tus tsav tsheb ANC raug txiav txim los ntawm lub suab zoonyob rau hauv kaw-loop tawm tswv yim. Lub microphone sab nraum lub khob kuaj lub suab nrov nrov, ANC nti hloov mus rau theem, thiab tus neeg tsav tsheb rov tsim dua qhov kev tiv thaiv - suab nrov. Yog hais tias tus tsav tsheb lub zaus teb thiab theem teb hloov mus rau hauv cov units, lub voj yuav tsis converges ib yam ntawm txhua lub mloog pob ntseg.
Rau ib qho dhau - pob ntseg ANC tsav tsheb nyob rau hauv Φ51–Φ60mm, peb qhov tshwj xeeb yog tus cwj pwm ntawm lub voj convergence:
F0 (resonant zaus):80-110 Hz yog lub qhov rais ua haujlwm. Hauv qab 80 Hz, tus tsav tsheb dhau los ua lub subwoofer nrog tsis zoo siab - zaus txuas ntxiv. Tshaj li 110 Hz, lub txee ntses bass thaj tsam hauv lub khob pib dov tawm thiab lub voj ANC tsis tuaj yeem xa cov kev xav "dub" tshem tawm hauv qab 200 Hz.
Sensitivity kam rau ua:± 2 dB yog cov tswv yim hauv pem teb rau kev tsim ANC. ± 3 dB yog txais tau rau qis -kawg mus ncig ANC. Txhua yam looser thiab khub- sib phim hla cov kab laug sab laug / sab xis yuav hnov, thiab khub- sib phim hla ANC lim lub calibration band yuav tsis ntseeg.
Impedance nkhaus flatness:tus tsav tsheb 32Ω yuav tsum tsis txhob viav vias saum 48Ω ntawm F0, lossis ANC nti cov qauv thauj khoom drifts. Z- cov duab nkhaus tseem ceeb tshaj tus nqi nominal.
3. Peb hom tsis ua hauj lwm hom nco hauv daim ntawv spec
| # | Ua tsis tiav hom | Cov tsos mob hauv thaj teb | Keeb kwm |
|---|---|---|---|
| 1 | Fais fab unit tsis meej pem (E1 pitfall) | Cov qauv hlawv tawm thaum hlawv -in | Spec daim ntawv teev "30" yam tsis muaj mW - engineers nyeem 30W, tsav tus tsav tsheb ntawm 30W, lub suab coil tsis ua haujlwm. E-chav tsav tsheb yog 20–50mW, tsis yog watts . 30W yog tshaj 1000 × lub zog ntsuas. |
| 2 | rhiab heev tawm ntawm qhov qub (E2 pitfall) | Brand nug tus neeg muag khoom spec | E- chav kawm rhiab heev khiav 99–118 dB vim qhov ntsuas qhov deb yog 1 cm, tsis yog 1 m. A 110 dB / mW tus nqi yog qhov qub; nws tsis yog qhov yuam kev. Hla-piv rau multimedia (76 dB/W·m) confuses cov spec. |
| 3 | 32Ω kho raws li "siab" impedance (E3 pitfall) | Cov neeg siv khoom thov 16Ω rau "muab cov khoom siv smartphone" | 32Ω yog tus qauv rau portable thiab tshaj - pob ntseg ANC. Kev txo qis rau 16Ω yuam lub xov tooj kom xa cov tam sim no ntau dua, tshem cov roj teeb, thiab tsis muaj txiaj ntsig acoustic. Tus nqi 32Ω raug xaivrauxov tooj, tsis tawm tsam nws. |
Rau kev dhia dej tob ntawm E-chav kawm spec nyeem, saib peb cov lus FAQ hauv qab no.
4. Reference specification - Φ55mm tshaj- pob ntseg ANC tsav tsheb
Qhov no yog tus sawv cev spec band rau XDEC E-chav kawm dhau- pob ntseg ANC tsav tsheb hauv Φ55mm band. Cov khoom siv tiag tiag raug kho raws li hom kev xav tau; Cov lus no qhia txog lub hnab ntawv raug thiab lub hom phiaj tsim tom qab txhua qhov ntsuas.
| Parameter | Yam nqi | Tsim lub hom phiaj / pitfall kom zam |
|---|---|---|
| Sab nraud txoj kab uas hla | Φ55 hli | Sib tw tus qauv tshaj - pob ntseg khob kab noj hniav; F0 nyob twj ywm hauv qhov rais 90-110 Hz |
| Impedance | 32 Ω ±15% | Txheem rau portable ANC; tsis txhob hla-piv rau multimedia 4Ω / 8Ω |
| Z- nkhaus ntawm F0 | Tsawg dua lossis sib npaug li 48 Ω | Flatness yog qhov tseem ceeb; tus nqi nominal tsis txaus |
| Kev ntsuas fais fab | 30mW (nruam) | E- chav tsev yog milliwatts, tsis yog watts - 30W yuav rhuav tshem cov kauj |
| rhiab heev | 108 dB/mW @ 1 cm | E- chav ntsuas qhov deb yog 1 cm; tsis txhob muab piv rau 1 m spec ntawm multimedia |
| rhiab heev kam rau ua | ± 2 dB khub- sib phim | Yuav tsum tau L/R tshuav nyiaj li cas thiab ANC voj convergence |
| F0 (rov qab) | 95 Hz ± 8 Hz | Drift saum ± 10 Hz rhuav tshem ANC algorithm theem kev xav |
| Zaus teb | 20 Hz - 20 kHz | Txwv los ntawm lub khob kab noj hniav, tsis yog tus tsav tsheb - tsav tsheb yuav tsum nyob twj ywm rau 18 kHz |
| TSI @ 1 mW | Tsawg dua lossis sib npaug li 1% @ 1 kHz | Siab dua THD qhia txog kev sib haum xeeb ntawm ANC lub voj tsis tuaj yeem tso tseg |
| Ua haujlwm kub | −10℃rau +60 degree | Khob sab hauv hits 45℃+ nyob rau lub caij ntuj sov hnav; coil yuav tsum nyob ruaj khov |
5. Qhov twg Φ51–Φ60mm ANC tsav nkoj hauv ntim
Los ntawmXDEC cov ntaub ntawv xa khoom, 2024(dhau- pob ntseg ANC tsav tsheb ntu, qhov chaw sab saum toj):
Taug kev / commuter ANC headphones- qhov siab tshaj - qeb ntim. Φ52-Φ58mm tsav tsheb dominate, tuned rau 30-40 dB ntawm broadband tshem tawm hauv 100-1000 Hz band. Lead hom yog lub hauv paus hauv lub teb chaws Yelemees, Nyiv, thiab Tebchaws Meskas.
Studio / pro saib xyuas ANC lub mloog pob ntseg- ntim me me, nruj dua spec. Φ55-Φ60mm, rhiab heev kam rau ua ± 1.5 dB, F0 kam rau ua ± 5 Hz. Siv rau hauv kev saib xyuas kev tshaj tawm thiab kev kaw cia hauv teb.
Wireless gaming ANC headsets- Φ50–Φ55mm, feem ntau nrog lub rear acoustic chaw nres nkoj tuned rau spatial suab rendering. Tus neeg tsav tsheb yuav tsum ua ke nrog lub suab nrov nrov; khob ntim tau muab faib.
Hwm lub npe nrov tshaj - pob ntseg- flagship-tier ANC, feem ntau yog ob tus tsav tsheb ib sab (ib qho rau ntses bass thaj tsam, ib qho rau treble) lossis ib qho dav dav Φ55–Φ60mm nrog crossover. XDEC muab ob qho kev teeb tsa.
Sab nraud ntawm cov no, peb tau xa Φ55mm hla- pob ntseg ANC tsav tsheb mus rau hauv maus taus lub kaus mom hlau sib txuas lus thiab aviation headsets - ob qho tib si yuav tsum muaj F0 zoo tib yam tab sis nrog cov hnab ntawv kub thiab av noo.
6. XDEC teeb tsa li cas tshaj - pob ntseg ANC tsav tsheb
Thaum ib lub hom phiaj ze rau peb rau Φ51–Φ60mm tshaj -pob ntseg ANC tsav tsheb, kev sib tham feem ntau pib nrog peb lo lus nug:
Lub hom phiaj F0 yog dab tsi?Peb phim lub hom ANC algorithm kev cob qhia band. Yog hais tias lub algorithm yog tuned rau 95 Hz, tus tsav tsheb yuav tsum xa 95 Hz ± 5 Hz, tsis yog 110 Hz ± 10 Hz.
Dab tsi yog khub - sib piv?Rau flagship ANC, ± 1.5 dB hla 200 Hz - 5 kHz band. Kev mus ncig ANC, ± 2 dB. Rau kev nkag - theem, ± 3 dB.
Lub khob ntim yog dab tsi?Ib khob 200 ml thiab 350 ml khob txav F0 los ntawm 15-20 Hz. Peb qhib tus tsav tsheb rau lub khob, tsis yog lub khob rau tus tsav tsheb.
XDEC khiav lub ANC tsav tsheb sib piv chaw nres tsheb uas ua ke sab laug thiab sab xis los ntawm kev ntsuas rhiab heev ntawm 1 kHz, 500 Hz, thiab 200 Hz. Pairs raug xa mus rau hauv cov tais sib txuam. Qhov no yog cov kauj ruam uas, thaum hla mus, ua rau 22% rov qab tus nqi peb pom thaum pib ntawm tsab ntawv no.
Rau European, Nyiv, thiab Asmeskas tshaj - pob ntseg ANC hom, XDEC tau xa 1.2 lab Φ50–Φ60mm lub mloog pob ntseg tsav tsheb hauv peb lub xyoos dhau los hla kev mus ncig, studio, thiab cov khoom lag luam gaming.(Tau qhov twg los: XDEC cov khoom xa tuaj, 2022-2024.)
7. FAQ - dhau- pob ntseg ANC lub mloog pob ntseg (Φ51–Φ60mm)
Q1. Vim li cas lub zog ntsuas hauv mW, tsis yog W?
Lub mloog pob ntseg tsav tsheb khiav ntawm lub teeb liab me me. Ib qho dhau ntawm - pob ntseg ANC tsav tsheb yog ntsuas 20–50 mW txuas ntxiv. Tus nqi 30 mW yog qhov chaw ua haujlwm ib txwm muaj; 30W yuav dhau 1,000 × lub zog ntsuas thiab yuav hlawv lub suab coil hauv vib nas this. Thaum nyeem ib daim ntawv E-chav kawm spec, nco ntsoov xyuas chav tsev. Tus lej liab qab tsis muaj mW yog tus chij liab. (Saib E1 pitfall saum toj no.)
Q2. Yog vim li cas rhiab heev 99-118 dB ntawm lub mloog pob ntseg spec thaum multimedia tsav tsheb yog 76-95 dB?
E-cov tsav tsheb hauv chav kawm yog ntsuas ntawm 1 cm nrog 1 mW input, siv pob ntseg pob ntseg (IEC 60318-4). Multimedia tsav tsheb yog ntsuas ntawm 1 m nrog 1 W input. Cov kev siv nrug deb thiab cov tswv yim muaj zog sib txawv los ntawm kev txiav txim ntawm qhov loj. A 108 dB / mW @ 1 cm lub mloog pob ntseg tsav tsheb yog qhov qub; nws tsis yog "nrov tshaj li tus neeg tsav tsheb multimedia" hauv kev sib piv muaj txiaj ntsig. (Saib E2 pitfall saum toj no.)
Q3. Puas yog 32Ω "siab" impedance rau lub mloog pob ntseg? Peb puas yuav poob rau 16Ω rau cov khoom siv txawb?
Tsis yog. 32Ω yog tus qauv rau kev nqa tau thiab tshaj- pob ntseg pob ntseg, suav nrog ANC. Tus nqi 32Ω raug xaiv tshwj xeeb vim nws rub tawm tam sim no los ntawm lub xov tooj lub mloog pob ntseg, txuas ntxiv roj teeb lub neej ntawm ob lub xov tooj thiab lub mloog pob ntseg. Kev poob rau 16Ω ob npaug ntawm qhov kos tam sim no, uas tso lub xov tooj sai dua thiab tsis muaj txiaj ntsig acoustic. (Saib E3 pitfall saum toj no.)
Q4. Vim li cas F0 drift tawg ANC, txawm tias tus tsav tsheb zoo nyob rau hauv hom passive?
ANC algorithm raug cob qhia ntawm F0 tshwj xeeb thiab cov lus teb theem uas los nrog nws. Yog hais tias tus tsav tsheb ntau lawm F0 hloov los ntawm 15-20 Hz, lub algorithm tus qauv sab hauv ntawm tus neeg tsav tsheb theem tsis phim qhov tseeb. Cov teeb liab tawm tsam - suab nrov yog tsim los ntawm cov theem tsis ncaj ncees lawm, thiab cov suab nrov seem ntawm - feem ntau pom tau tias yog xim nruab nrab lossis sib sib zog nqus. Nyob rau hauv passive (ANC-tawm) mloog, tib tus neeg tsav tsheb suab tau txais. Qhov tsis xws luag tsuas yog pom nyob rau hauv lub voj voog ua haujlwm.
Q5. Dab tsi yog qhov tsawg kawg nkaus txiav txim kom muaj nuj nqis thiab lub sijhawm ua haujlwm rau kev cai Φ55mm tshaj - pob ntseg ANC tsav tsheb?
Rau cov qauv hauv -frame tsav tsheb (Φ51–Φ60mm, 32Ω, 30 mW, F0 nyob rau hauv 90–110 Hz), sim ntau lawm pib ntawm 500 units, txheem ntau lawm ntawm 3,000 units, thiab customization (F0, impedance, Z-khov, 00 ntawm hlau, connector). Cov khoom txheem yog nyob rau hauv Tshuag thiab nkoj hauv 3-5 hnub; cov qauv xa tuaj hauv 7 hnub. Kev cai F0 los yog impedance tuning yuav siv sij hawm 15-20 hnub rau cov qauv, nrog huab hwm coj ntau lawm pib nyob ib ncig ntawm hnub 30. Specification rov qab nyob rau hauv 48 teev, thiab ib tug neeg tsav tsheb kev pom zoo yog muab nyob rau hauv 24 teev tom qab tau txais lub hom phiaj spec. (XDEC project policy, 2024.)
Q6. XDEC puas tuaj yeem txhawb nqa ob qho tib si - tsav tsheb thiab dual - tsav tsheb (coaxial) dhau - pob ntseg ANC tsim?
Yog lawm. Rau cov qauv tsim coaxial qhov twg lub tweeter tau nruab rau hauv lub woofer, XDEC muab ob qho tib si ua ib khub sib tw ntawm ib qho kev sib tw. F0, rhiab heev, thiab impedance nkhaus yog kho raws li lub kaw lus, tsis yog tus tsav ywj pheej. Qhov no yuav tsum tau ntsuas qhov ntsuas acoustic ntxiv thiab ntxiv 7-10 hnub rau lub sijhawm ua piv txwv.
8. Hais txog XDEC
Shenzhen Xuanda Electronics Co., Ltd. (XDEC)tau tsim muaj nyob rau hauv 2009 thiab tau siv 17 xyoo tsom rau cov neeg hais lus tsav tsheb, receivers, thiab microphones rau lub ntiaj teb no suab kev lag luam. Peb cov neeg tsav tsheb xa mus rau ntau dua 30 lub teb chaws thiab ua haujlwm dhau - pob ntseg ANC, ntawm - pob ntseg saib, gaming headset, hauv - pob ntseg siv, thiab daim ntawv thov lub ntsej muag ntse.
Cov ntawv pov thawj: ISO 9001: 2015 / ISO 14001: 2015 / IATF 16949 / TÜV / Shenzhen High-Tech Enterprise
Lub zeem muag: Txhawm rau dhau los ua lub ntiaj teb -chaw tsim khoom nrov nrov
Lub Hom Phiaj: Pab peb cov neeg siv khoom xa cov suab zoo nkauj rau txhua lub ces kaum ntawm lub ntiaj teb
Lub hauv paus ntsiab lus ntawm kev pabcuam: Kho tus neeg siv khoom ceev raws li peb tus kheej, thiab xav ua ntej ntawm tus neeg siv khoom yuav xav tau dab tsi tom ntej
9. Cov kauj ruam tom ntej
Yog tias koj tab tom ntsuas Φ51–Φ60mm dhau- pob ntseg ANC tsav tsheb rau 2026 lossis 2027 cov khoom lag luam, XDEC tuaj yeem xa rov qab cov lus pom zoo tsav tsheb hauv 24 teev tom qab tau txais koj lub hom phiaj spec, thiab kev tshuaj xyuas tag nrho hauv 48 teev. Kev sim tsim pib ntawm 500 units. Peb tau xa cov khoom sib tw -paj ANC tsav tsheb rau cov khoom lag luam hauv lub teb chaws Yelemees, Nyiv, Kaus Lim Qab Teb, thiab Tebchaws Meskas, thiab peb zoo siab tos txais tuaj xyuas lub Hoobkas rau cov hom phiaj npaj lub sijhawm ntev - daim ntawv cog lus muab khoom.
Hu rau:Manager Yuan· +86 135 2888 3307 · xd12@xdec.cn · www.xdecspeakerdriver.com
Cov ncej no tau npaj los ntawm XDEC engineering team. Cov lus qhia tshwj xeeb thiab cov ntaub ntawv hauv teb tau hais txog yog rub los ntawm XDEC cov khoom siv sab hauv thiab cov ntaub ntawv xa khoom, 2020-2024. Daim ntawv thov scenarios yog piav qhia; cov lus qhia tshwj xeeb yog qhov project- nyob ntawm.