Method and apparatus for signaling the volume level of reproduci

Details Method and apparatus for signaling the volume level of reproduci Method and apparatus for signaling the volume level of reproduci

1987-08-10

1989-07-11

Sikes, William L.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 50, G11B 700

Patent

active

048478253

ABSTRACT:
In order to warn persons who are about to listen to sound performances from player apparatus using digital records and particularly those listeners using headphones, of the volume setting of the record player, a warning sound having an amplitude substantially lower than the amplitude of the recorded performance, and proportional to the volume setting of the player, is generated for a few seconds before the player begins to reproduce the performance. The warning signal may emanate from digital signals encoded on the record media before each recorded performance, or alternatively, may be generated by circuitry built into the player that generates its own warning tone for a few seconds following the actuation of the "play" button.

REFERENCES:
patent: 3051795 (1962-08-01), Roberts et al.
patent: 3171902 (1965-03-01), Jones et al.
patent: 3881072 (1975-04-01), Becker
patent: 3958272 (1976-08-01), Rotter et al.
patent: 4519057 (1985-05-01), Higashihara et al.
patent: 4764860 (1988-08-01), Takao

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