- #1
Tino
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I need help with the two questions below please because i just don't understand it !1
Questions
1. A signal processing system consists of a preamplifier, an amplifier and a filter connected in series. At a given frequency the preamplifier and the amplifier have gains of 12 dB and 31 dB respectively, while the input and output voltages of the filter are 7.0 v and 0.35v respectively. Calculate the overall gain of the system at that frequency.
2. A rock band produces music with a bandwidth from 30Hz to 20kHz. If the music is amplified through a system with the following bandwidths what range of frequencies will be heard by the audience.
Microphones (10Hz to 12khz), Amplifiers (45Hz to 16kHz), Loudspeakers (50Hz to 14kHz).
Thanks !
Questions
1. A signal processing system consists of a preamplifier, an amplifier and a filter connected in series. At a given frequency the preamplifier and the amplifier have gains of 12 dB and 31 dB respectively, while the input and output voltages of the filter are 7.0 v and 0.35v respectively. Calculate the overall gain of the system at that frequency.
2. A rock band produces music with a bandwidth from 30Hz to 20kHz. If the music is amplified through a system with the following bandwidths what range of frequencies will be heard by the audience.
Microphones (10Hz to 12khz), Amplifiers (45Hz to 16kHz), Loudspeakers (50Hz to 14kHz).
Thanks !