amplifier, directivity, speech intelligibility, acoustical, heterodyne, modulation, amps, acoustics, microphonic, preamplifier, transduction, attenuation, sideband, amplitude modulation, passband, dephasing, harmonics, impedances, reverb, liveness, preamp, superheterodyne, condenser microphone, loudness, subwoofers, electret, synthesis, synthesizer, lightwave, intermodulation, distortion, intelligibility, cardioid, chemiluminescence, resonators, resonant cavity, boomy, psychoacoustics, flanging, stereo, pmos, crosstalk, photolysis, dispersive, vocalisation, subwoofer, photocurrent, synchronism, triode, instrumentation, quantization, demodulation, bypass capacitor, plasmon, kilohertz, lavalier, corona discharge, polyphony, anechoic chamber, sibilance, decrescendo, backscattering, pulser, amplitudes, quasiparticle, nernst, inhomogeneity, sensorineural, reverberation, directionality, sine wave, variable resistor, interpolation, acoustic impedance, photoconductive, cytometer, linearity, ultrasonics, ferrites, hysteresis, diminuendo, monochromator, excitation, audiometry, audibility, canceller, modulator, cochlear, amplifying, attenuator, auditory, frequency modulation, crystal oscillator, decoding, vocalization, pyrometer, contrabassoon, audio, formant, strain gage, directional antenna, spls, magnification, damping, dilution, buffering, crosslinking, retention, cooling, dissipation, heating, purification, weighting, adsorption, breakage, compaction, decoupling, filtering, ionization, leaching, suction, extraction, recovery, feedback, deflection, expansion, compression, counting, mapping, matching, precipitation, propagation, relaxation, sampling, stripping, activation, autocatalytic, balancing, coding, conditioning

electronic transistor, electronic voltmeter, junction transistor, laser, maser, optical maser, p.a. system, pa, pa system, public address system, transistor, triode

expanding upon, expansion, increase, increment, step-up

elaboration, gain