1. A vehicle-mounted voice recognition apparatus comprising: a voice input unit for acquiring an inputted voice; a voice recognition unit for performing voice recognition on said acquired inputted voice; a guidance information output unit for providing a guidance on a basis of a result of said voice recognition; and a guidance description determining unit for determining a user's degree of understanding of recognized words to said guidance according to a number of timeout times that a timeout has occurred in a user's operation which is monitored while said voice recognition unit performs the voice recognition, a number of correction times that a correction has been made to the user's operation, or both of the number of timeout times and the number of correction times so as to change said guidance.
1. A vehicle-mounted voice recognition apparatus comprising: a voice input unit for acquiring an inputted voice; a voice recognition unit for performing voice recognition on said acquired inputted voice; a guidance information output unit for providing a guidance on a basis of a result of said voice recognition; and a guidance description determining unit for determining a user's degree of understanding of recognized words to said guidance according to a number of timeout times that a timeout has occurred in a user's operation which is monitored while said voice recognition unit performs the voice recognition, a number of correction times that a correction has been made to the user's operation, or both of the number of timeout times and the number of correction times so as to change said guidance. 9. The vehicle-mounted voice recognition apparatus according to claim 1 , wherein said guidance information output unit sets a sound volume of a portion showing words to be uttered included in said voice guidance to be variable on a basis of the user's degree of understanding of recognized words which is determined by said recognized word understanding degree determining unit.