Telephone Bandwidth is Limited

• Telephone Transmission

  • Cuts off sounds below 300 Hertz
  • Cuts off sounds above about 3,400 Hz
  • Bandwidth is the difference between the highest and lowest frequencies (3400-300): about 3,100 Hz

Sound

Loudness

Frequency (Hz)

0

300

3400

20,000

Bandwidth

3,100 Hz

Previous slide

Next slide

Back to first slide

View graphic version