Invention of the Phonograph
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17 سال پیش
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Transmission of sound electronically through
Transmission of sound electronically through the telephone came (oddly) before acoustical recording of sound via the phonograph. Electrical transcription of sound and playback on phonograph records came much later, in the 1920s.
17 سال پیش
در تاریخ 1386/05/27 منتشر شده
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