19 Apr
2018
19 Apr
'18
12:03 a.m.
Hi, I'm (ab)using gr-fosphor for audio spectrum visualization by using float to complex because it is the most colorful spectrum analyzer that I have. Unfortunately, for some reason gr-fosphor is choppy at 48 kHz, while it is smooth at rtl-sdr output, about 2 MSPS or so. Is there any FFT configuration setting like other spectrum analyzer to change how many FFT bins and the framerate?