gerzgalar |
|
| QUOTE (angelo.farina @ 21/2/2021, 14:33) Yes, 45 dB above the noise floor gives excellent results.
However this is going to be strongly frequency-dependent, getting such value at low frequency will be hard.
Using a long exponential sweep, you can have decent measurements even with a much lower S/N ratio, around 20 dB at low frequency.
I suggest a sine sweep of at least 15s when the background noise is loud... Hi Angelo , I continue this conversation with the following question. Suppose I have an array of 16 omnidirectional microphones mapping an enclosure. The gain level of the pre amp of each measuring mic should be the same ? ( set so that there is no clip on the mic closest to the omnidirectional source and as Ignacio said, have 45 dB of S/N on the furthest one ). The question arises because in the microphone farthest from the source, the recording level is lower than the closest one. Does this provide any kind of problem when using the aurora convolver to generate the impulse response? thank you very much for your time |
| | |
