1. web www.VOCAL.com
email Sales@VOCAL.com
Tel (716) 688-4675

2. Click
Start Demo
when ready
to continue

3. Select a
demo to
begin

4. Click
next when
ready to
continue

5. Click
next when
ready to
continue

6. Select
parameter
configuration
and next to
continue

7. Select a
button to
review input
signals

8. Far
End Speech
is what you
speak into your
telephone!

9. Near End
speech is what
you hear from
your telephone!

10. Additive
noise is
introduced at
near end to
far end
speech

11. Echo Path /
Line impulse
Response

12. Far
End Speech
is what you
speak into your
telephone!

13. Near End
speech is what
you hear from
your
telephone!

14. Additive
noise is noise
added at near
end to far
end speech

15. Echo Path /
Line impulse
Response

16. Select a
button to
review demo
results

17. Our
Echo Canceller
output is the
Signal with no
Echo!

18. Our
Echo Canceller
output is the
Signal with no
Echo!

19. ERLE measures echo
canceller path loss
A
Higher ERLE
indicates
better echo
attenuation!

20. VOCAL’s
API simplifies
LEC integration
with your
code!

21. For product and
licensing information
please contact
David Jamieson
Sales@VOCAL.com
or call
(716) 688-4675
Thank you!