Results and Discussions

Time frequency analysis of stationary and non stationary sounds have been done for analysing the variations of frequency with respect to time.

Time Frequency Analysis of stationary sound waves.

1. A time frequency analysis of sine wave at 1000 Hz frequency

      Time frequency plot of sine wave at 1000 Hz frequency

2. A time frequency analysis of boat stream motor

      Click the button to hear the sound file of boat stream motor

      Time frequency plot of boat stream motor



Time Frequency Analysis of non stationary sound waves.

1. A time frequency analysis of sweep sound between 800-2000 Hz frequency

      Time frequency plot of sweep sound between 800-2000 Hz frequency

2. A time frequency analysis of air-raid

      Click the button to hear the sound file of air raid

      Time frequency plot of air raid

3. A time frequency analysis of alarm beep

      Click the button to hear the sound file of alarm beep

      Time frequency plot of alarm beep

4. A time frequency analysis of dentist drill

      Click the button to hear the sound file of dentist drill

      Time frequency plot of dentist drill

5. A time frequency analysis of door creak

      Click the button to hear the sound file of door creak

      Time frequency plot of door creak

6. A time frequency analysis of hammer anvil

      Click the button to hear the sound file of hammer anvil

      Time frequency plot of hammer anvil

7. A time frequency analysis of hammer anvil2

      Click the button to hear the sound file of hammer anvil2

      Time frequency plot of hammer anvil2

8. A time frequency analysis of jet doppler1

      Click the button to hear the sound file of jet doppler1

      Time frequency plot of jet doppler1

9. A time frequency analysis of jet doppler2

      Click the button to hear the sound file of jet doppler2

      Time frequency plot of jet doppler2

10. A time frequency analysis of falling object

      Click the button to hear the sound file of jet falling

      Time frequency plot of falling

11. A time frequency analysis of dolphin whistle

      Click the button to hear the sound file of dolphin whistle

      Time frequency plot of dolphin