Tone generator

Nowadays there are many kinds of spectrum analyzers: stationary, portable, handhled and networked.

Tuning fork was invented by lute musician.

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.

Use of spectrum analyzer provides a plot and trace of signal amplitude in the frequency domain.

Some artists use oscilloscope waveforms to make certain patterns. They are able to create eye-catching mandalas or floral shap...

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

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

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

Chord consists of minimum three diffrent notes.

Three crossed turning forks are in Yamaha brand logo.

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

Highest note define the position of chord.

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