Patent ID: 8462964
Filing Date: 2013-06-11
Classification: H03G

Abstract:
1. A recording apparatus comprising: an audio signal correction block configured to execute correction for flattening the frequency characteristic of an audio signal supplied from a microphone and correction of the level of said audio signal on the basis of a recording mode in which correction amounts of the frequency characteristic and the level of said audio signal are defined; a correction control block configured, if, on the basis of a lower limit value and an upper limit value of a target value predetermined for said recording mode, the level of said audio signal is lower than the lower limit value of said target value, to make said audio signal correction block adjust the level of said audio signal so as for the level of said audio signal to exceed the lower limit value of said target value, if the level of said audio signal is over the upper limit value of said target value, make said audio signal correction block adjust the level of said audio signal so as for the level of said audio signal to go below the upper limit value of said target value, by use of an absolute value of the level of said audio signal that is maximized in a predetermined period as a reference value, attenuate said reference value with time, and, if an audio signal with a level thereof exceeding said reference value is entered, use the absolute value of the level of said audio signal exceeding said reference value as a new reference value; and a recording block configured to record said audio signal to a recording media, wherein said audio signal correction block cuts an ultra low range, said ultra low range being lower than an audible band and may cause or contain noise, from said audio signal to flatten the level of said audio signal in an audible range and said correction control block makes an attenuation amount per certain time of said reference value variable in accordance with the level of said audio signal and causes a speed of the correction of the level of said audio signal to be executed by said audio signal correction block to be variable.