Course Solutions Uncategorized (Solved) : Human Voice Pressure Waves Directed Transducers Microphones Transformed Voltage Waves Huma Q32431119 . . . .

(Solved) : Human Voice Pressure Waves Directed Transducers Microphones Transformed Voltage Waves Huma Q32431119 . . . .

June 27, 2024June 27, 2024| adminadmin| 0 Comment| 8:06 pm
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Human voice (pressure waves) when directed to transducers such as microphones is transformed into voltage waves. The human voice covers a large spectrum from 20Hz to 20kHz. This means if one wishes to hear clearly over a telephone, one needs to design an active bandpass filter with fa20Hz a20kHz with sufficient gain between fe and fe to ensure sufficient volume transmitted while suppressing out-of- band noises and signals. Frequency bands are very limited resources. Over the years, many engineers found any human voice is sufficiently recognizable within the range of 300Hz-3kHz (voltage signals). To conserve bandwidth, rather than covering <div class=

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