faisal349
Junior Member level 1
Hi,
I generated a linearly frequency modulated signal (40kHz-45kHz) in Audacity software with an amplitude of 1. Ideally, the gain should be 0dB in this frequency range. But, when I use the Plot Spectrum option in Audacity, the gain is not 0dB but less. And as I increase the size e.g. from 1024 to 65536, the gain further reduces. What is the reason for it? I think it is divided by the size of the window, that is why the gain reduces?
How can I extract the true voltage level from the Plot Spectrum option in Audacity or MATLAB etc?
Regards
I generated a linearly frequency modulated signal (40kHz-45kHz) in Audacity software with an amplitude of 1. Ideally, the gain should be 0dB in this frequency range. But, when I use the Plot Spectrum option in Audacity, the gain is not 0dB but less. And as I increase the size e.g. from 1024 to 65536, the gain further reduces. What is the reason for it? I think it is divided by the size of the window, that is why the gain reduces?
How can I extract the true voltage level from the Plot Spectrum option in Audacity or MATLAB etc?
Regards