Animal Ears 🐛 Yileyo ndlela izilwane ezizwa ngayo
U-ibhu uzwa kanjani?
Agrotis segetum
Indlebe enomsebenzi owodwa kuphela: ukuthola ilulwane kungakabi sephuzu.
Ngamafuphi
U-Ibhu uzwa cishe kusukela ku-3 kHz kuya ku-100 kHz, futhi ubamba kangcono eduze kuka-30 kHz. Nge-Animal Ears ungathatha noma yimuphi umsindo wakho bese uwuzwa ngendlela ayizwa ngayo.
Ilunda lasebusuku linendlebe elula kakhulu, amaseli ambalwa nje ezinzwa, kodwa elungiselelwe ngokumangalisayo: liyisithulu emisindweni ephansi futhi lizwela kuze kube ngu-100 000 Hz, izikhathi ezinhlanu zophahla lwakho. Kungani lapho ngqo? Ngoba yilapho kukhala khona amalulwane alizingelayo. Indlebe yalo, empeleni, iyi-detector ye-radar yesitha: uma i-echo izwakala ikude, liyagwema; uma iseduze, lisonga amaphiko bese liziyeka liwe.
I-Hertz (Hz)
Yimiphi imisindo ayizwayo
I-hertz ibala ukuthi umsindo udlidliza kangaki ngomzuzwana. Ukudlidliza okuncane = ophansi (ukuduma kwezulu, cishe u-30 Hz). Ukudlidliza okuningi = ophakeme (ukukhala kwe-microwave, cishe u-3 000 Hz). Futhi u-“1 kHz” kuyindlela emfushane yokusho u-1 000 Hz. Wena uzwa, ngokujwayelekile, kusukela ku-20 Hz kuya ku-20 000 Hz.
Umsindo ophansi uyaduma (cabanga ngokuduma kwezulu); umsindo ophakeme uyakhala kancane (cabanga ngomiyane). Lezi zinombolo ezintathu zikhombisa ukuthi lesi silwane sehla kangakanani, sikhuphuka kangakanani, futhi yiliphi izinga elizwa kacace kunazo zonke.
| Umsindo ophansi kakhulu | 3 kHz |
|---|---|
| Umsindo ophakeme kakhulu | 100 kHz |
| Umsindo awuzwa kacace kunayo yonke | 30 kHz |
| Okuzwa wena | 20 Hz – 20 kHz |
Izindlebe zakho vs. ezika-Ibhu
Yebo: ubamba imisindo ephakeme kangangokuthi kuwe kuwukuthula okuphelele, kuze kube cishe 100 kHz. Uphahla lwakho lungu-20 kHz.
I-audiogram
| I-Hertz (Hz) | Umkhawulo wokuzwa |
|---|---|
| 3 kHz | 75 dB |
| 5 kHz | 68 dB |
| 10 kHz | 55 dB |
| 15 kHz | 48 dB |
| 20 kHz | 43 dB |
| 30 kHz | 40 dB |
| 40 kHz | 45 dB |
| 50 kHz | 52 dB |
| 60 kHz | 58 dB |
| 80 kHz | 68 dB |
| 100 kHz | 78 dB |
True far-field pressure hearing via a paired tympanal ear, broadly tuned to bat echolocation ultrasound, best ~20–40 kHz. Representative V-shaped noctuid audiogram; approximate absolute dB SPL.
Ingabe u-Ibhu uzwa izinto ongenakuzizwa wena?
U-Ibhu ubamba konke kusukela ku-3 kHz (ophansi kakhulu) kuya ku-100 kHz (ophakeme kakhulu), futhi uzwa kacace kakhulu eduze kuka-30 kHz.
Yebo: ubamba imisindo ephakeme kangangokuthi kuwe kuwukuthula okuphelele, kuze kube cishe 100 kHz. Uphahla lwakho lungu-20 kHz.
Imibuzo evamile
Yimiphi imisindo ezwiwa ngu-Ibhu?
U-Ibhu ubamba konke kusukela ku-3 kHz (ophansi kakhulu) kuya ku-100 kHz (ophakeme kakhulu), futhi uzwa kacace kakhulu eduze kuka-30 kHz.
Ingabe u-Ibhu uzwa izinto ongenakuzizwa wena?
Yebo: ubamba imisindo ephakeme kangangokuthi kuwe kuwukuthula okuphelele, kuze kube cishe 100 kHz. Uphahla lwakho lungu-20 kHz.
I-Animal Ears yenza kanjani ukuthi umsindo uzwakale njengoba u-Ibhu ewuzwa?
Ososayensi balinganisile, izinga ngezinga, ukuthi umsindo kufanele ube mkhulu kangakanani ukuze u-Ibhu aqale ukuwuzwa. Sithatha lolo jikelele siluvise ekurekhodweni kwakho njenge-equalizer enkulu: sikhuphula amazinga isilwane esiwazwa kahle, sehlise noma sisuse lawo angekho nhlobo kuso. Umphumela usondela kulokho esikubamba... kodwa usazongena ngezindlebe zakho.
I-Hertz (Hz)
I-hertz ibala ukuthi umsindo udlidliza kangaki ngomzuzwana. Ukudlidliza okuncane = ophansi (ukuduma kwezulu, cishe u-30 Hz). Ukudlidliza okuningi = ophakeme (ukukhala kwe-microwave, cishe u-3 000 Hz). Futhi u-“1 kHz” kuyindlela emfushane yokusho u-1 000 Hz. Wena uzwa, ngokujwayelekile, kusukela ku-20 Hz kuya ku-20 000 Hz.
I-ultrasound
Imisindo ephakeme kangangokuthi indlebe yakho ayisayibhali: ngaphezu kuka-20 000 Hz. Kuwe kuwukuthula okuphelele, kodwa inja, ikati noma ilulwane bayayizwa kahle. Impempe yezinja “ethule” ikhona lapho.
Zivelaphi lezi zinombolo
- Roeder, K.D. & Treat, A.E. (1957). Ultrasonic reception by the tympanic organ of noctuid moths. J. Exp. Zoology, 134, 127–158. doi:10.1002/jez.1401340107
- Nakano, R., Takanashi, T. & Surlykke, A. (2015). Moth hearing and sound communication. J. Comp. Physiol. A, 201, 111–121. doi:10.1007/s00359-014-0945-8
Ezinye izilwane
Ilulwane
Lizingela ebumnyameni lifunda i-echo yokukhala kwalo, izikhathi ezinhlanu ngaphezu kophahla lwakho.
Igundane
Uhlala isitezi esisodwa ngaphezu kwakho: cishe uyisithulu ezwini lakho, umuhle kakhulu ku-ultrasound.
Ihlengethwa
Ukhuphuka izikhathi eziyisikhombisa ngaphezu kwakho futhi “ubona” ngaphansi kwamanzi nge-echo yamaklikhi akhe.
Uvemvane
Izwa ngendlebe esesiqwini sephiko, ilungiselelwe ingoma yezinyoni.
Animal Ears
Landa i-Animal Ears
Layisha umsindo wakho bese uwuzwa ngendlela isilwane ebesizowuzwa ngayo.