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In such a system, the use of bass management allows the redirection of low-frequency signals from any of the five main speakers to the subwoofer (SW). The high-pass filters applied to each of the main channels are typically 12 dB/octave and use a Butterworth filter. These are complemented by a 24 dB/octave low-pass filter in the subwoofer feed ...
In 1975 Ed Long [1] in cooperation with Ronald J. Wickersham invented the first technique to Time-Align a loudspeaker systems. In 1976 Long presented "A Time-Align Technique for Loudspeakers System Design" [2] at the 54th AES convention demonstrating the use of the Time-Align generator to design improved crossover networks for multi-way loudspeakers systems.
Remote Control Pass Through allows remote control commands to be passed through to other devices within the system Device OSD Name Transfer transfers the preferred device names to the TV set System Audio Control allows the volume of an AV receiver, integrated amplifier or preamplifier to be controlled using any remote control from a suitably ...
VCRs, DVD recorders, etc. act as a "pass-through" for composite video and S-video, though sometimes they act as an RF modulator for use on Channel 3. Tape monitor features allow an AV receiver (sometime the recording device itself) to act as a "pass-through" for audio.
Low-pass Low-pass filters pass through frequencies below their cutoff frequencies, and progressively attenuate frequencies above the cutoff frequency. [1] Low-pass filters are used in audio crossovers to remove high-frequency content from signals being sent to a low-frequency subwoofer system.
Speaker drivers are the primary means for sound reproduction. They are used among other places in audio applications such as loudspeakers, headphones, telephones, megaphones, instrument amplifiers, television and monitor speakers, public address systems, portable radios, toys, and in many electronics devices that are designed to emit sound.
As a rule, transmission line speakers tend to have exceptionally high fidelity low frequency response far below that of a typical speaker or subwoofer, reaching into the infrasonic range (British company TDL's studio monitor range from the 1990s quoted their frequency responses as starting from as low as 17 Hz depending upon model with a ...
Tetrahedral speaker setups were used in the 1970s for first trials of full-sphere sound reproduction. One such experiment conducted by the Oxford University Tape Recording Society was documented by Michael Gerzon in 1971. [14] [15] [16] In this setup, the tetrahedron was inscribed into a cuboid, using every other corner.