Stereo Spectrum Analyzer

The Stereo Spectrum Analyzer enables you to see your Music spectrum for test purposes, for analysis purposes, or just for entertainment. The Spectrum Analyzer Software taps into the output Digital Audio Data stream to show you graphically the spectral content of what you are hearing from your system.

The Spectrum Analyzer can be operated in Logarithmic or Linear Frequency axis Mode, Logarithmic or Linear Magnitude axis mode, or Music Mode. The Spectrum Analyzer can operate showing the Full Frequency Band, the Subsonic Frequency Band, or a Selected Frequency Band. In addition the Spectrum Analyzer can be operated to display the Average, the Peak, or the Instantaneous Spectrum of the Music data.

The magnitude Center and Range can be adjusted in order to view Music with low spectral energy content or with high spectral energy content. The Spectrum analyzer uses Fast Fourier Transform (FFT) techniques to generate the displayed spectrum graphs. The Block Size of the algorithm can be adjusted to provide high resolution spectrum graphs that update slowly or low resolution spectrum graphs that update quickly.

The Spectrum Analyzer can display Music spectrums in many graph modes such as Left Plus Right, Left Minus Right, Left Only, Right Only, Left On Right, and Dual Trace. The Spectrum Analyzer can operate in Persist Mode where successive spectrum graphs are not erased but are drawn on top of each other.

The Spectrum Analyzer Trigger Level, Trigger Delay, and Trigger Slope are adjustable to provide stable viewing of almost any spectrum. The Spectrum Analyzer can trigger on the left or the right channel in the Dual Trace modes.

The Spectrum Analyzer has a front end compensation filter that can be enabled or disabled. The filter has a characteristic that emphasizes certain frequencies to produce a more interesting output when viewing music. This compensation should of course be disabled when performing calibrations.

The Spectrum Analyzer screen is fully integrated into the main screen display so that normal Stereo Workstation activities can continue without interference.

Similar to the Oscilloscope, the non-technical person will not have to know anything about Spectrums, Gains, FFTs, or Logarithms because the default settings of Music Mode are designed to provide interesting visual displays for someone that just wants to watch.

The following image shows a screen shot of a typical Music Spectrum waveform:

This picture shows the Stereo Workstation Main Screen in Spectrum Analyzer mode with Logarithmic Frequency axis and Linear Magnitude axis selected. This picture also shows that Instantaneous Mode and Left Plus Right Mode are selected.