Проверка частотного диапазона слуха
Звуки частотой 18 килогерц к 18 годам слышит около 60%, а к 40–50 годам — всего 10% слушателей.
3 months ago 00:06:34 1
4 months ago 00:08:58 1
4 months ago 00:07:14 1
4 months ago 00:06:26 1
5 months ago 00:24:27 6
5 months ago 00:28:19 6
5 months ago 00:06:38 1
5 months ago 00:00:16 1
5 months ago 00:00:06 1
5 months ago 00:00:11 1
5 months ago 00:00:21 1
5 months ago 00:00:12 1
6 months ago 00:01:33 1
6 months ago 00:00:24 1
6 months ago 00:00:25 1
6 months ago 00:01:57 1
6 months ago 00:00:17 1
6 months ago 00:00:21 1
6 months ago 00:00:21 1
6 months ago 00:00:29 1
6 months ago 00:00:33 2
6 months ago 01:19:53 1
6 months ago 00:10:04 6
6 months ago 00:00:40 1
