These grammars are deprecated in favor of built-in SRGS grammars.
The standard grammars are built-in grammars, predefined by LumenVox. Using these grammars will return a single concept, formatted appropriately. Only one standard grammar can be active at a time; no concepts can be removed from the standard grammar. The client application can, however, add and remove concepts to the voice channel grammar, which will coexist with the standard grammar.
1 GRAMMAR_DIGITS
String of single digits, like a phone number or pin code. In version 4.0, digits are a separate acoustical model and so only recognize (One, two, three, four, five, six, seven, eight, nine, zero and oh). It ignores application supplied grammar and cannot currently recognize things like "twenty-five or seventeen". This allowed us to obtain extremely low error rate. The number grammar can be used to mix application grammar and digit recognition.
2 GRAMMAR_MONEY
Monetary value.
3 GRAMMAR_NUMBER
Numeric value like 12,000, 24.45 or 35.
4 GRAMMAR_LETTERS
Letters of alphabet for spelling (not implemented).
5 GRAMMAR_DATE
Date values (not implemented).
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