Normal
Re: TM1's and Presonus Firstudio .....My first thought is that it's a signal to noise ratio problem. I would assume this is happening acoustically, that is the signal from the loudspeaker in this frequency region is just not sufficiently louder than the noise to get good data. You might try increasing the SPL from the DUT if possible. Increasing the number of averages for a measurement should also help to increase S/N.You can verify that the problem is not in the electronics with a loop back test.
Re: TM1's and Presonus Firstudio .....
My first thought is that it's a signal to noise ratio problem. I would assume this is happening acoustically, that is the signal from the loudspeaker in this frequency region is just not sufficiently louder than the noise to get good data. You might try increasing the SPL from the DUT if possible. Increasing the number of averages for a measurement should also help to increase S/N.
You can verify that the problem is not in the electronics with a loop back test.
