Spectral analyzer

Following the discovery of fast Fourier transform, in 1962 the first spectrum analyzer was engineered.

Since 1939 binding sound for pitching musical instruments is in 440Hz frequency. Formerly it was 432Hz.

Chords contain tierces (thirds).

Tuning fork is a tool used to pitch musical instruments.

Drum sounds can't be compononents of a chord. Chords can only consist of certain notes.

Oscilloscopes are used to observe the change of electrical signal over time.

Osciloscopes are used not only in the audio (music) industry, but also science laboratories, hospitals and clinics.

The first of real time computer games was made for oscilloscope. "Tennis for two" was programmed by William Higinbotham in 1958....

There are two types of spectrum analyzers: swept-tuned and time-sequence.

There are two type of chords- consonant chords and disonant chords.

Key attributes of networked spectrum analyzers include the ability of synchronize data captures and effortless free acces.

Tuning fork was invented by lute musician.

Laryngologists use tuning forks in 432Hz becouse that's the frequency human body transcribes the best.

Three crossed turning forks are in Yamaha brand logo.

Highest note define the position of chord.

In 1897 german physicist K.F.Braun engineered the first oscilloscope.