Mosquito sound "ear age test 2" can be measured to 20s or less (~ 20000 Hz) скачать в хорошем качестве

Mosquito sound "ear age test 2" can be measured to 20s or less (~ 20000 Hz)

All age Ear age check HD setting possible 0: 10 【Teens (18000 to 20000 Hz)】 0: 19 【Twenties (16000 to 18000 Hz)】 0: 31 [30s (14000 to 16000 Hz)] 0: 42 【40s (12000 to 14000 Hz)】 0: 53 [50s (10000 to 12000 Hz)] 1:03 【60s (8000 to 10000 Hz)】 1:14 [All ages (7000 to 8000 Hz)] Specific ear age and frequency can now be measured (age is a guide) The sound should come out to 20000Hz, but depending on your device, high frequency sound may be cut. It is recommended to check if the sound waveform is output with the measurement application of frequency etc before using it Use image source URL https://www.ac-illust.com/ The sound is made by the generator. Sound of most used in conversation: 1000Hz Sound higher than human voice (about snail insect call): 4000 Hz Mosquito sound: 16000 Hz or more It is said that the mosquito sound will not be heard from the late twenties. The indicator released by the WHO (World Health Organization) in March 2015 "The sound of 91 dB is within one hour a day" With the sound of 91 dB "Slight sound leaks when listening to music with earphones" "Sound of the dryer" "Sound of high power vacuum cleaner" "Screaming voice" Such. Listening to these sounds for more than an hour a day can lead to premature aging of the ear. It is said that the ears weakened by aging do not return. As a preventive measure "When you hear loud noises, do" ears of cotton " "Stay silent for a while after hearing loud noises (rest your ears)" "Use TV and music with a smaller sound. Stimulate ear cells to prevent aging." and so on. ● Our channel recommended video Water sound of healing "Sound of shaking on the water surface" Sleep, Relax, Work ASMR for 3 hours    • 癒しの水音｢水面が揺れる音｣睡眠･リラックス･作業用ASMR 3時間　/B...   Sounds of waves 【Healing 3D sound BGM (High sound quality)】 Natural music for healing / sleeping (Sound of the sea) 1 hour    • 波の音【ヒーリング立体音響BGM(高音質)】癒し･睡眠用の自然音楽(海の音...   Sound of healing water "Seseragi (water flow sound)" Relax alpha wave natural sound for 5 hours promoting sleep and concentration    • 癒しの水の音｢せせらぎ(水流音)｣ 睡眠・集中力を促進するリラックスα波自...