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Continuous display of audio spectrum from PC input or wave file
Reads audio from Windows audio interface or wave file and creates a continuous spectrum display. Command line support for generating sine, square, triangle and sawtooth wave files. Uses biquad IIR digital filters for frequency detection, plus digital lowpass filters for output extraction. Highly configurable. 60+ FPS with suitable hardware. Manual or automatic gain control.
The real open-source RTL-SDR 2832 dongle panoramic spectrum analyzer
"Real-time" wide band spectrum analyzer using rtl2832 dongle.
Dowload latest built exe here:
https://sourceforge.net/p/guiforrtlpower/code/HEAD/tree/Win32/Release/
click to rtlpan.exe, then click download it
Place 3 files from osmocom's librtlsdr windows build
http://sdr.osmocom.org/trac/attachment/wiki/rtl-sdr/RelWithDebInfo.zip
rtlsdr.dll
libusb-1.0.dll
rtl_power.exe
into the same folder and then run rtlpan.exe
Also, it is better to have UAC turned off (as it ask...