dialing tone recognition l.
Download
Skip this Video
Download Presentation
Dialing Tone Recognition

Loading in 2 Seconds...

play fullscreen
1 / 9

Dialing Tone Recognition - PowerPoint PPT Presentation


  • 77 Views
  • Uploaded on

Dialing Tone Recognition. Samuel Simmons Justry Weir Eduardo Moya Abubakr Mohamed. Dual Tone Multi Frequency. Theory. Record a series of dialing tones Input signal to Matlab Play sound file Perform FFT Represent signal graphically Output numbers dialed. How it Works. Recording

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Dialing Tone Recognition' - jag


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
dialing tone recognition

Dialing Tone Recognition

Samuel Simmons

Justry Weir

Eduardo Moya

Abubakr Mohamed

theory
Theory
  • Record a series of dialing tones
  • Input signal to Matlab
  • Play sound file
  • Perform FFT
  • Represent signal graphically
  • Output numbers dialed
how it works
How it Works
  • Recording
  • Run Program
  • Input file name of recording
  • Program runs / runtime
  • Displays number and graphs
experimental setup
Experimental Setup
  • Hardware
  • Software
  • Types of different sound scenarios
data results
Data Results
  • Higher quality signal with little noise
  • Noise and signal of similar power
  • Poor signal quality with noise
conclusion
Conclusion
  • Equipment
  • Environment
  • Run Time
  • Efficiency