Speech scientists are developing a system that can monitor fatigue levels by looking for signs of tiredness in the voice, with plans for its initial use by heavy construction vehicle drivers. Matthew Stock reports.
01:21
01:39
00:45
01:07
00:46
01:18
01:43
01:22
01:30
00:53
01:24
01:06
01:39
01:36
01:10
00:58
02:18
02:26
00:12
01:08
02:14
01:06
02:22
01:06
00:52
02:17
02:04
02:15
01:40
01:04
01:24
01:15
01:51
01:44
01:44
03:02
03:07
00:48
00:53
01:15
00:45
01:07
00:46
01:16
01:39
00:12
01:08
00:45
01:27
01:07
01:16
00:21
02:39
01:17
00:29
00:49
01:32
01:14
01:47
01:48
04:57
01:09
01:16
01:13
01:21
01:18
01:14
05:10
02:38
01:44
01:22
01:31
01:19
02:03
01:26
01:26
02:26
01:59
05:26
02:26
01:22
01:01
01:03
01:21
01:05
01:13
01:17
00:56
01:00
01:49
02:05
00:56
03:04
00:40
01:02
01:37
02:25
01:18
02:56
01:49
01:18
00:59
02:49
02:19
02:19
01:59
00:49
00:38
02:34
02:10
01:46
00:54
02:09
02:09
00:58
02:37
01:11
01:40
01:22
02:09