7. An electronic device comprising: a sensor; a microphone; memory storing instructions; one or more processors configured to execute the instructions to: determine, based on one or more signals from the sensor and when a multimodal interface of an electronic device is at a text modality, that a context satisfies a criterion; and responsive to determining that the context satisfies the criterion: preemptively establish a voice-to-text conversion session between the electronic device and a voice-to-text conversion processor, the voice-to-text conversion session used to process voice input received via the microphone at a voice modality of the multimodal interface; provide output to indicate that the voice-to-text conversion session is available; receive a voice input; initiate processing of at least a portion of the voice input at the voice-to-text conversion processor within the session; and build a complete query based on output from the voice-to-text conversion processor.
7. An electronic device comprising: a sensor; a microphone; memory storing instructions; one or more processors configured to execute the instructions to: determine, based on one or more signals from the sensor and when a multimodal interface of an electronic device is at a text modality, that a context satisfies a criterion; and responsive to determining that the context satisfies the criterion: preemptively establish a voice-to-text conversion session between the electronic device and a voice-to-text conversion processor, the voice-to-text conversion session used to process voice input received via the microphone at a voice modality of the multimodal interface; provide output to indicate that the voice-to-text conversion session is available; receive a voice input; initiate processing of at least a portion of the voice input at the voice-to-text conversion processor within the session; and build a complete query based on output from the voice-to-text conversion processor. 8. The device of claim 7 , wherein the sensor is a position coordinate sensor.