15. A memory storing instructions that when executed cause a processor to perform operations, the operations comprising: receiving an audio signal generated by a microphone from speech spoken by a user to control a feature in a vehicle; recognizing a command prefix in the audio signal, the command prefix representing a spoken word in the spoken speech that is recognized as preceding any voice command; identifying a next spoken word after the command prefix as the voice command; storing associations between different next spoken words and different vehicular commands; retrieving a vehicular command of the different vehicular commands that is associated with the next spoken word; and executing the vehicular command in response to the next spoken word after the command prefix.
15. A memory storing instructions that when executed cause a processor to perform operations, the operations comprising: receiving an audio signal generated by a microphone from speech spoken by a user to control a feature in a vehicle; recognizing a command prefix in the audio signal, the command prefix representing a spoken word in the spoken speech that is recognized as preceding any voice command; identifying a next spoken word after the command prefix as the voice command; storing associations between different next spoken words and different vehicular commands; retrieving a vehicular command of the different vehicular commands that is associated with the next spoken word; and executing the vehicular command in response to the next spoken word after the command prefix. 18. The memory of claim 15 , wherein the operations further comprise displaying an event indicator.