Japan ta fitar da ka'idoji kan irin waɗannan na'urorin gargaɗi a watan Janairun 2010, kuma Amurka ta amince da dokar a watan Disamba na 2010. Hukumar Kula da Tsaron Ababen Hawa ta Ƙasa ta Amurka ta fitar da hukuncinta na ƙarshe a watan Fabrairun 2018, kuma ta buƙaci na'urar ta fitar da sautin gargaɗi lokacin da take tafiya a ƙasa da 18.6 mph (30 km/h) tare da bin ƙa'ida kafin Satumba 2020, amma kashi 50% na motocin "masu shiru" dole ne su sami sautin gargaɗin kafin Satumba 2019. A watan Afrilun 2014, Majalisar Tarayyar Turai ta amince da dokar da ta buƙaci amfani da Tsarin Faɗakar da Motoci na Acoustic (AVAS). Dole ne masana'antun su shigar da tsarin AVAS a cikin motocin lantarki masu ƙafa huɗu da na lantarki waɗanda aka amince da su daga ranar 1 ga Yuli, 2019, da kuma duk sabbin motocin lantarki masu shiru da na hybrid waɗanda aka yi wa rijista daga Yuli 2021. Dole ne motar ta yi ƙarar da ta kai aƙalla 56 dBA (cikin mita 2) idan motar tana tafiya kilomita 20/h (12 mph) ko a hankali, kuma matsakaicin 75 dBA.
Kamfanonin kera motoci da dama sun ƙirƙiro na'urorin sauti na gargaɗin lantarki, kuma tun daga watan Disamba na 2011, motocin fasaha na zamani da ake da su a kasuwa tare da sautunan gargaɗin lantarki da aka kunna da hannu sun haɗa da Nissan Leaf, Chevrolet Volt, Honda FCX Clarity, Nissan Fuga Hybrid/Infiniti M35, Hyundai Sonata Hybrid, da Toyota Prius (Japan kawai). Samfuran da aka sanye da tsarin kunnawa ta atomatik sun haɗa da BMW i3 na 2014 (ba a samun zaɓi a Amurka ba), Toyota Camry Hybrid na 2012, Lexus CT200h na 2012, duk nau'ikan EV na Honda Fit, da duk motocin iyali na Prius da aka gabatar kwanan nan a Amurka, gami da samfurin shekarar 2012 Prius, Toyota Prius v, Prius c da Toyota Prius Plug-in Hybrid. Injin lantarki mai wayo na 2013, zaɓi, yana zuwa da sautunan kunnawa ta atomatik a Amurka da Japan kuma ana kunna su da hannu a Turai.
Kamfanin Enhanced Vehicle Acoustics (EVA), wani kamfani da ke Silicon Valley, California, wanda ɗaliban Stanford biyu suka kafa tare da taimakon kuɗin iri daga Ƙungiyar Makafi ta Ƙasa, ya ƙirƙiro wata fasaha ta bayan kasuwa mai suna "Motar Aiki da Sauti Mai Fitar da Sauti" (VOSES). Na'urar tana sa motocin lantarki masu haɗaka su yi sauti kamar motocin injinan ƙonawa na ciki na yau da kullun lokacin da motar ta shiga yanayin lantarki mai shiru (EV mode), amma a ƙaramin matakin sauti na yawancin motoci. A saurin da ya fi tsakanin mil 20 a kowace awa (kilomita 32/h) zuwa mil 25 a kowace awa (kilomita 40/h) tsarin sauti yana kashewa. Tsarin kuma yana kashewa lokacin da injin ƙonawa na haɗaka yake aiki.
VOSES tana amfani da ƙananan lasifika masu sauti waɗanda ake sanyawa a kan rijiyoyin ƙafafun matasan kuma suna fitar da takamaiman sautuka bisa ga alkiblar da motar ke tafiya don rage gurɓatar hayaniya da kuma ƙara yawan bayanai game da sauti ga masu tafiya a ƙasa. Idan motar tana tafiya gaba, ana nuna sautunan ne kawai a gaban alkibla; kuma idan motar tana juyawa hagu ko dama, sautin yana canzawa a hagu ko dama yadda ya kamata. Kamfanin ya yi jayayya cewa "kururuwa, ƙararrawa da ƙararrawa sun fi jan hankali fiye da amfani", kuma mafi kyawun sautuka don faɗakarwa ga masu tafiya a ƙasa suna kama da mota, kamar "ƙarfin injin ko jujjuyawar tayoyi a hankali a kan titin." An tsara ɗaya daga cikin tsarin sauti na waje na EVA musamman don Toyota Prius.
Lokacin Saƙo: Satumba-11-2023