23
Common Speech Recognition Problems
– While the speech recognizer works for most people, you may
encounter a problem once and a while. Here are some of the common problems you might have:
•
Holding the Microphone – The microphone design requires it to be clipped to an object. If you hold
the microphone in your hand it will not pick up your voice.
•
Speaking too soon - The most common speech recognition problem is answering a question before the
GNAV20 has stopped speaking. To avoid this problem, wait until the GNAV20 has finished speaking
before answering.
•
Talk radio or other people talking in the car - If you are playing a talk radio station or if anyone in the
car is talking, even if they are talking quietly, you will have difficulty with speech recognition. You
must turn down the radio and ask others to remain quiet during speech input.
•
Fan is too loud or is blowing air across the microphone - This problem occurs very often in summer
when the air conditioning is turned up high. Lower the fan speed and/or reposition the microphone.
•
Road noise is too loud - In some vehicles, especially convertibles and trucks, the interior noise
increases dramatically at freeway speeds. If your vehicle is noisy at freeway speeds, you should enter
your destination while parked, or while on a surface street. Positioning the microphone on your
shoulder harness, about eight inches below your chin should also resolve this problem.
•
Shouting - Shouting puts stress into the voice, and actually degrades speech recognition performance.
If the GNAV20 is not hearing you, try moving the microphone closer to your mouth and speak in a
normal voice.
24
CHAPTER 9 - ENTERING A DESTINATION BY VOICE
Selecting a Destination
- The GNAV20 will ask you if you want to go to an address, place or location in
your address book (if programmed).
ADDRESSES
Entering the City Name
– The GNAV20 will ask you for the city name, spell the city name one letter at a
time. Remember to wait for confirming BEEP before saying the next letter. Say STOP after the last letter
and the GNAV20 will ask you to confirm the name. Answer YES if it is correct or NO if it is incorrect.
Example (has previous entered City Name in memory)
You:
Navigator
(
beep
)
Address
GNAV20:
“Do you want to go to” and LONDON will be displayed on the screen
You:
No
[If you answer Yes, it will go to the Street Name screen]
GNAV20:
“Spell the city name.”
You: P-O-R-T-S-M-O-U-T-H–
stop
GNAV20:
“Did you say” and PORTSMOUTH will be displayed on the screen.
You:
Yes
Example (no previous entered City Name in memory)
You:
Navigator
(
beep
)
Address
GNAV20:
“Spell the city name.”
You: P-O-R-T-S-M-O-U-T-H–
stop
GNAV20:
“Did you say” and PORTSMOUTH will be displayed on the screen.
You:
Yes