Phrase
import type { Phrase } from "https://googleapis.deno.dev/v1/speech:v1.ts";
A phrases containing words and phrase "hints" so that the speech recognition
is more likely to recognize them. This can be used to improve the accuracy
for specific words and phrases, for example, if specific commands are
typically spoken by the user. This can also be used to add additional words
to the vocabulary of the recognizer. See usage
limits. List items
can also include pre-built or custom classes containing groups of words that
represent common concepts that occur in natural language. For example, rather
than providing a phrase hint for every month of the year (e.g. "i was born in
january", "i was born in febuary", ...), use the pre-built $MONTH
class
improves the likelihood of correctly transcribing audio that includes months
(e.g. "i was born in $month"). To refer to pre-built classes, use the class'
symbol prepended with $
e.g. $MONTH
. To refer to custom classes that were
defined inline in the request, set the class's custom_class_id
to a string
unique to all class resources and inline classes. Then use the class' id
wrapped in ${...}
e.g. "${my-months}". To refer to custom classes
resources, use the class' id wrapped in ${}
(e.g. ${my-months}
).
Speech-to-Text supports three locations: global
, us
(US North America),
and eu
(Europe). If you are calling the speech.googleapis.com
endpoint,
use the global
location. To specify a region, use a regional
endpoint with
matching us
or eu
location value.
§Properties
Hint Boost. Overrides the boost set at the phrase set level. Positive
value will increase the probability that a specific phrase will be
recognized over other similar sounding phrases. The higher the boost, the
higher the chance of false positive recognition as well. Negative boost
will simply be ignored. Though boost
can accept a wide range of positive
values, most use cases are best served with values between 0 and 20. We
recommend using a binary search approach to finding the optimal value for
your use case as well as adding phrases both with and without boost to your
requests.