Voice Processing (Ch. 11)

matchmoaningΤεχνίτη Νοημοσύνη και Ρομποτική

17 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

92 εμφανίσεις

Voice Processing
(Ch. 11)

ENGR 475


Telecommunications

September 8, 2006


Jonathan White

What Voice Processing is


When you interact with an automated
telephone system using your voice.


2 major applications:


Directing calls (hated)


Message manipulation (loved)


Voice processing has a long history


voice mail was actually invented in the
1970’s.

Voice/Touch Tone Recognition


Most voice processing systems depend on touch
tone input from callers.


An alternative is voice recognition.


Still very limited.


Systems can be trained to recognize many words from
one user or a few words from many users.


Good for enrolling in classes.


Voice to text transformations.


Incredible improvements are being made in this
field using sophisticated applications of math and
DSP.

Voice Dialing


You can train your cell phone to
dial a number when you say
something.


This logic is actually stored on
your cell phone


Stored on a PBX in a shared
environment.

Automated Attendant/
Automated Distributor


Almost universally reviled.


You talk and interact with a machine.


Performs these functions:


Answers telephone.


Announces options.


Accepts touch tone/voice input.


Forwards calls to proper human.


Plays music while you are on hold.


http://www.databasesystemscorp.co
m/psautoattendant.htm


Skype / Asterisk do this already

Voice Mail


Many uses


Features:


answer many phones at the same time


store incoming voice messages in personalized mailboxes
associated with the user's phone number


enable users to forward received messages to another voice
mailbox


send messages to one or more other user voice mailboxes


add a voice introduction to a forwarded message


store voice messages for future delivery


make calls to a telephone or paging service to notify the user
a message has arrived in his/her mailbox


transfer callers to another phone number for personal
assistance


play different message greetings to different callers.


Is this an excuse to never answer your phone again?

Voice Mail Architecture


Voice mail is stored on a server


Typically connected to your PBX


On your cell phone, your voice
mail is not stored on your
phone.


Voice is compressed when it is
stored.