Customizing the user interface
Cisco TelePresence ISDN Gateway 2.1 Online help (Printable format) 116 of 135
Voice prompt specification Below is a complete list of the voice prompts that may be c ustomized. The default wording is shown
for each prompt. You do not have to use exactly the sam e wordings if they are not appropriate for your
needs, and are provided only as a guide.
Filename
Default wording
voice_prompt_connecting
Thank you. I’ll connect you now
voice_prompt_enter_number
Please enter the number you wish to dial followed by the
hash key
voice_prompt_welcome_isdn_gw
Hello
Making the best possible recordings
There are many factors to consider when recording alternati ve voice prompts in order to get the best
results. Below is a summary of the points to bear in m ind.
Recording format
It is best to make each recording with the ideal settings and hence avoid any sample-rate or resolution
changes. As discussed, the ideal format is Microsoft Wave (.WAV) format, uncompressed, mono, at
16 kHz and 16-bit resolution.
If you are unable to make mono recordings, the ISDN Gateway can convert stereo recordings .
Background noise
It is important to minimize background noise (hiss) as much as possible. This includes ambient noises
such as road noise and slamming doors etc. but also tr y to keep fan noise and similar to a minimum.
When played back by the ISDN Gateway, samples with background noise are very apparent.
Consistency
If possible, record all voice prompts in one session. This will ensure that all voice and background
conditions remain constant and the recorded voice will sound similar from prompt to prompt.
Volume
Record prompts using a relatively constant loudness o f voice. Although it may take some trial and
error, the best recordings will result from speaking loud eno ugh that the voice is recorded loudly
compared to any residual background noise, but not so loud ly that it sounds distorted when played
back.