An audio playback apparatus includes a playback section for playing audio back, a buffer section (13) for temporarily storing voice data to be played back, a switch (14) for on/off switching transmission of the voice data from the buffer section (13) to the playback section, at least one threshold judgment section (18) for judging whether an amount of voice data buffered in the buffer section (13) is equal to or smaller than at least one threshold value, the at least one threshold judgment section (18) providing a true output when the buffered voice data amount is equal to or smaller than the at least one threshold value, a timer (19) triggered by an output from the at least one threshold judgment section to output a trigger pulse with a predetermined duration of time, and a first control section (191) for controlling on/off of the switch (14) to prevent transmission of the voice data in the buffer section (13) to the playback section for the predetermined duration of time of the trigger pulse when the true output is provided from the at least one threshold judgment section (18).