sound level meter Frequently Asked Questions
Question number FAQ-1228
What is the delay time of the AC output for the LA-3000 series?
It is about 5 ms.
If you need a signal without delay, please use the Through output.
Delay time in single mode
5.0 ms (Input - AC-Z OUT)
5.0 ms (Input - AC OUT)
Delay time of 1/3 octave filter
| Center frequency (Hz) | Sampling frequency (Hz) | Input Delay (ms) |
|---|---|---|
| 4 kHz | 64 kHz | 5.1 ms |
| 2 kHz | 32 kHz | 5.6 ms |
| 1 kHz | 16 kHz | 6.4 ms |
| 500 Hz | 8 kHz | 7.9 ms |
| 250 Hz | 4 kHz | 11.2 ms |
| 125 Hz | 2 kHz | 17.9 ms |
| 63 Hz | 1 kHz | 30.8 ms |
| 31.5 Hz | 500 Hz | 56.3 ms |
Delay time during 1/1 octave filter.
| Center frequency (Hz) | Sampling frequency (Hz) | Input - ACOUT delay (ms) |
|---|---|---|
| 4 kHz | 64 kHz | 5.1 ms |
| 1 kHz | 32 kHz | 5.4 ms |
| 500 Hz | 16 kHz | 6.1 ms |
| 250 Hz | 8 kHz | 7.3 ms |
| 125 Hz | 4 kHz | 9.7 ms |
| 63 Hz | 2 kHz | 15.2 ms |
| 31.5 Hz | 1 kHz | 25.0 ms |
Last updated date: 2014-12-03