WTS701 Datasheet, PDF (55/77 Pages) Winbond – WINBOND SINGLE-CHIP TEXT-TO-SPEECH PROCESSOR

WTS701
7.7.3 Volume Change
The speech volume can be changed by sending SPI command to modify the speed or by adding
control character to control the volume in real-time.
0x16 ^V
Volume Change Flag. A space character is required after the control characters
before the input text string.
• ^V+: Increase volume by 1 (e.g. ‘^V+ Hello world’).
• ^V-: Decrease volume by 1.
• ^VX: Set the volume to X. X starts from 0 to 7 (e.g. ‘^V1 Hello world’).
Any number that is greater than 7 will be set to 0.
It’s the user’s responsibility to verify the WTS701 volume setting before sending a control character
and/or SPI command that modify volume.
7.7.4 Case Sensitivity
The way upper/lower case is handled can be changed by adding a control character in the text sent to
control the case sensitivity behavior in real-time.
0x15 ^U
All-Uppercase Word (all CAPs) Control Flag. This flag controls interpretation of strings
with all uppercase letters. A space character is required after the control characters before the acutual
input text string.
• ^U0: This is the default setting. Some all-uppercase words (all CAPs) are spelled out, but
others are treated as ordinary words, abbreviations, Roman numerals, ect. (e.g. ‘^U0 IBM
equals ‘i b m’).
• ^U1: Avoid spelling out all-uppercase words. Any all-uppercase word in the input string will
NOT be spelled out unless the system determines that the word is not pronounceable. In this
mode, there is no abbreviation support (e.g. ‘^U1 NOKIA’ equals ‘nokia’).
• ^U2: Spell out all words, regardless of case. All words in the input sting are spelled out in
this mode. There is no abbreviation support in this mode (e.g. ‘^U2 NOKIA’ equals ‘n o k i a’).
^U3: Force the all-capital words/strings to be spelled out regardless of string length. For
instance, ‘^U3 HELLO’ will be pronounced as ‘H’, ‘E’, ‘L’, ‘L’, ‘O’.
7.7.5. Pause Control
Pause control flage: ‘^QX’: Pauses with variant length can be added within a sentence by using the
‘^QX’ flag. ‘X’ is an integer which indicats the pause duration (‘X’ is 0.1 sec per unit). For instance,
‘^Q10’ will add in a 1-second pause.
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Publication Release Date: May 2003
Revision 3.09