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The torsional deflection of a simple cylinder cannot radiate efficiently acoustic noise, but with particular boundary conditions the stator can radiate acoustic noise under torque ripple excitation. [8] Structure-borne noise can also be generated by torque ripple when rotor shaft line vibrations propagate to the frame [9] and shaft line.
Full-tower computer cases may contain multiple cooling fans. At the top of the case is a fan controller. Fan control is the management of the rotational speed of an electric fan. In computers, various types of computer fans are used to provide adequate cooling, and different fan control mechanisms balance their cooling capacities and noise they ...
As of 2015, some 35 mm magnetic fullcoat tapes produced by Kodak, such as those used for the audio portion of older IMAX films, are also reported to be exhibiting sticky-shed. [5] As tapes remain in storage for a longer time, it is possible that other binder formulations may develop problems.
A fanless CPU cooler based on heat pipe technology. A quiet, silent or fanless PC is a personal computer that makes very little or no noise.Common uses for quiet PCs include video editing, sound mixing and home theater PCs, but noise reduction techniques can also be used to greatly reduce the noise from servers.
The AM/FM radio combined with a CD player has remained a mainstay of car audio, despite being obsolescent in non-car applications. [17] [18] In the 2010s, internet radio, satellite radio, streaming, and podcasting came into competition with AM/FM radio. By this time some models were offering 5.1 surround sound.
Note the NOISE/PGM option on the top rotary switches controlling the modulation busses. Noise is used as basic tonal material in electronic music. When pure-frequency sine tones were first synthesised into complex timbres, starting in 1953, combinations using inharmonic relationships (noises) were used far more often than harmonic ones (tones ...
A high pitch drill sound squeals at the start of “Dirge,” and in the song’s breakdown, while you hear someone singing “blessed be the name of the lord” sampled from Wim Wender’s 1987 ...
It can be heard as low-frequency noise and becomes a serious problem when playing records on audio systems with a good low-frequency response. Even when not audible, rumble can cause intermodulation, modulating of the amplitude of other frequencies. The ‘unweighted’ response curve is intended for use in assessing the level of inaudible ...