audio_fetch_hint

Specifies the MRCP hint for how to access audio URIs.

Value
  • prefetch: audio URIs can be downloaded when the request is received.
  • safe: audio URIs must not be downloaded until referenced.
  • stream: audio URIs can be streamed.

DEFAULT: prefetch

How to set

Shown in precedence order (see Rules of parameter precedence):

Set in the voice browser, using the Audio-Fetch-Hint header in a SPEAK or SET-PARAMS method.

In the application's session xml in the <speechsynth> section of <sessionparameters>.

Set in a VoiceXML application, using the fetchhint attribute of an <audio> element.

In Management Station, set on the Vocalizer service. If not using Management Station, set in the Vocalizer configuration file (User-nvsxx.xml).

Usage

Not used. Supported for MRCP compatibility, but has no effect in Vocalizer.