An audio information correction system, comprising: storage means for storing continuous audio information received by communication means; time measurement means configured to measure time; silent part determination means for determining if a silent part that lasts for a length of a reference time is present in the audio information stored in the storage means; and audio information correction means for correcting the audio information by deleting the silent part from the storage means or by adding another silent part continuously before or after the silent part, and storing the resultant audio information in the storage means, if the silent part determination means determines that the silent part is present, wherein the audio information correction means deletes the silent part from the storage means when a volume of the audio information stored in the storage means becomes equal to or larger than a first upper limit that is larger than a target volume, and the audio information correction means adds another silent part continuously before or after the silent part and stores the resultant audio information in the storage means when the volume of the audio information stored in the storage means becomes equal to or smaller than a first lower limit that is smaller than the target volume and, wherein the audio information correction means deletes an audio part having a predetermined length in the audio information from the storage means at a predetermined time interval as measured by the time measurement means, when the volume of the audio information stored in the storage means becomes equal to or larger than a second upper limit that is larger than the first upper limit, and the audio information correction means adds an audio part having a predetermined length in the audio information at a predetermined time interval as measured by the time measurement means, and stores the resultant audio information in the storage means when the volume of the audio information stored in the storage means becomes equal to or smaller than a second lower limit that is smaller than the first lower limit. storage means for storing continuous audio information received by communication means; time measurement means configured to measure time; silent part determination means for determining if a silent part that lasts for a length of a reference time is present in the audio information stored in the storage means; and audio information correction means for correcting the audio information by deleting the silent part from the storage means or by adding another silent part continuously before or after the silent part, and storing the resultant audio information in the storage means, if the silent part determination means determines that the silent part is present, wherein the audio information correction means deletes the silent part from the storage means when a volume of the audio information stored in the storage means becomes equal to or larger than a first upper limit that is larger than a target volume, and the audio information correction means adds another silent part continuously before or after the silent part and stores the resultant audio information in the storage means when the volume of the audio information stored in the storage means becomes equal to or smaller than a first lower limit that is smaller than the target volume and, wherein the audio information correction means deletes an audio part having a predetermined length in the audio information from the storage means at a predetermined time interval as measured by the time measurement means, when the volume of the audio information stored in the storage means becomes equal to or larger than a second upper limit that is larger than the first upper limit, and the audio information correction means adds an audio part having a predetermined length in the audio information at a predetermined time interval as measured by the time measurement means, and stores the resultant audio information in the storage means when the volume of the audio information stored in the storage means becomes equal to or smaller than a second lower limit that is smaller than the first lower limit.