Abstract: An information reproducing apparatus which enables regulation of sound volume levels of signals reproduced from a multiple-audio recording medium in which one of a plurality of audio information signals may be reproduced in conjunction with video information. The multiple-audio signals are recorded on a surface of a video disk, along with the video information. A code signal indicative of presence of multiple-audio information also is recorded, and is detected by code reading circuitry in the apparatus. Operation of changeover circuitry is controlled in accordance with the presence or absence of the code signal, and also in accordance with operation of a microphone in a microphone mixing mode.