8. A system comprising: one or more computers and one or more storage devices storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising: accessing a contact record for a contact, wherein the content record includes a textual representation of a name of the contact; obtaining an audio recording of the name of the contact; generating an update to a speaker-dependent speech recognition model associated with the contact using the audio recording of the name of the contact; and storing the speaker-dependent speech recognition model in association with the contact record.
8. A system comprising: one or more computers and one or more storage devices storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising: accessing a contact record for a contact, wherein the content record includes a textual representation of a name of the contact; obtaining an audio recording of the name of the contact; generating an update to a speaker-dependent speech recognition model associated with the contact using the audio recording of the name of the contact; and storing the speaker-dependent speech recognition model in association with the contact record. 11. The system of claim 8 , wherein the operations comprise: after storing the speaker-dependent speech recognition model, receiving a spoken input; and obtaining a result of performing speech recognition on the spoken input using the speaker-dependent speech recognition model.