Spectrider is a 3D high resolution real-time spectrometer, for educational and scientific purposes where analysis of analog signals is required.
These are the hotkeys that can be used to easily operate the functions of Spectrider (in help screen hot keys are highlighted by underscores):
* F: Change number of points in Fast Furrier Transformation (FFT)
* D: Change dynamic range for spectrum visualization
* A or +/- keys of numeric pad: Change factor for waveform amplification
* W: Change weighting function for waveform
* M: Switch color or mono mode for spectrum visualization
* V: Switch between 3-dimentional or 2-dimentional (colored) modes for spectrum visualization
* R: Change sampling rate
* N: Change minimum frequency of spectrum analysis
* X: Change maximum frequency of spectrum analysis
* : Adjust layout of spectrum, waveform and spectrum cut
* F1: Switch On/Off screen with contact info
* F2: Switch On/Off help screen together with current parameters
* F3: Switch On/Off map of spectrum colors
* F4: Switch On/Off grid together with labels
* ESCAPE or CONTROL+BREAK: close application
You can additionally press CONTROL key together with a hot key to decrement correspondent parameter, by default increment of parameter by pre-fixed step will be done.

Spectrider Features:
1. Three dimensional or colored spectrum visualization
2. FFT (Fast Fourier Transformation) from 64 till 4096 points
3. Dynamic signal range from 10 dB till 90 dB
4. Sampling rates from 11025 Hz to 44100 Hz
5. Different weighting functions
6. Variable frequency range for spectrum analysis
7. Colored or monochrome spectrum visualization mode
8. Pause mode

The license of this software is Free Trial Software, the price is $95.00, you can free download and get a free trial.