Music & Audio Advice Synthesizer Waveform Fundamentals 2

Question 1

Which waveform contains only the fundamental frequency with no harmonics?

Accepted Answer

Sine wave

Answer

A pure sine wave consists of a single frequency with no overtones or harmonics.

Question 2

A sawtooth wave is known for containing which set of harmonics?

Accepted Answer

All harmonics, both odd and even

Answer

A sawtooth wave contains all integer harmonics, giving it a bright, buzzy tone.

Question 3

Which waveform's harmonics roll off faster, giving it a softer, more mellow sound than a square wave?

Accepted Answer

Triangle wave

Answer

The triangle wave contains only odd harmonics that fall off steeply, producing a soft tone.

Question 4

Pulse-width modulation (PWM) is most directly applied to which waveform?

Accepted Answer

Square/pulse wave

Answer

PWM changes the duty cycle of a pulse/square wave to create movement and tonal variation.

Question 5

What characteristic harmonic content does a square wave have?

Accepted Answer

Only odd harmonics

Answer

A symmetrical square wave contains only odd harmonics, giving it a hollow, woody tone.

Music & Audio Advice Practice Test