In a record player, magnetic reproducing apparatus, magnetic recording and reproducing apparatus, etc. used for reproducing a sound recorded on a disc record or tape record; the reproducing device comprising a stop motion for temporarily stopping automatically or manually the movement of said recording medium in relation to a converter element, a means interlocked with said stop motion for switching the input of an amplifier between a converter element such as a pick-up cartridge or a magnetic head and a microphone, and a releasing means for de-energizing said stop motion, a teacher's model speech or pronunciation being reproduced by the relative movement of said recording medium and converter element in a reproducing operation, said reproducing operation then being temporarily stopped, which connects a microphone with the amplifier and enables a learner to hear his own speech or pronunciation through headphone, earphone or a speaker, the temporary stoppage of reproduction being released on completion of said hearing of the learner's own voice, thereby to reproduce a teacher's model again.
To eliminate the recording of undesirable sounds which can occur upon stang a sound motion picture camera in which sound is recorded simultaneously as the picture is recorded, a circuit shorting switch is installed in parallel with the sound recording head, and a film transport motor control switch is arranged to function opposite to the circuit shorting switch but in cooperation with that switch to stabilize the amplifier before film movement begins.
A tape end warning apparatus comprises an alarm switch which is closed in response to the detection of a terminal end of a running tape being reached during a record or playback operation of a tape recorder, and an oscillator circuit which is activated by the closure of the switch. The oscillator circuit produces an alarm signal which is fed to an amplifier inherently contained in a tape recorder so as to give off an audible alarm through a loudspeaker which is connected with the amplifier.
A tape end warning apparatus comprises an alarm switch which is closed in response to the detection of a terminal end of a running tape being reached during a record or playback operation of a tape recorder, and an oscillator circuit which is activated by the closure of the switch. The oscillator circuit produces an alarm signal which is fed to an amplifier inherently contained in a tape recorder so as to give off an audible alarm through a loudspeaker which is connected with the amplifier.
A tape end warning apparatus comprises an alarm switch which is closed in response to the detection of a terminal end of a running tape being reached during a record or playback operation of a tape recorder, and an oscillator circuit which is activated by the closure of the switch. The oscillator circuit produces an alarm signal which is fed to an amplifier inherently contained in a tape recorder so as to give off an audible alarm through a loudspeaker which is connected with the amplifier.
