Abstract: A signal recording apparatus comprising the operation portion to be manipulated when it is found necessary to record a signal on a recording medium while the signal is being produced, a signal conversion circuit for converting the signal to a digital signal, a memory circuit of specified capacity for temporarily storing the digital signal from the conversion circuit and thereafter feeding the signal to a signal recording head, and a main control circuit for controlling the memory circuit for storing the signal therein and reading out the signal therefrom. In response to a recording start instruction given by the operation portion, a system for driving the recording medium is initiated into operation, and at the same time, the signal is read out from the memory circuit retroactively since a predetermined time interval prior to the manipulation of the operation portion and is recorded on the medium.