Search results
Results from the WOW.Com Content Network
The Hum is a name often given to widespread reports of a persistent and invasive low-frequency humming, rumbling, or droning noise audible to many but not all people. Hums have been reported all over the world, including the United States, the United Kingdom, Australia and Canada.
A rumble is a continuous deep, resonant sound, such as the sound made by heavy vehicles or thunder. [1] In the context of audio reproduction rumble refers to a low frequency sound from the bearings inside a turntable. This is most noticeable in low quality turntables with ball bearings. Higher quality turntables use slide bearings, minimizing ...
A strange, low, rumbling sound that travels through walls and floors and seems to come from everywhere. At first, he was convinced the noise was from some kind of machinery, but he couldn’t find ...
Sensurround pseudorandom number generator circuit on the patent, to create low frequency rumble. The original Sensurround design used for Earthquake employed a pseudorandom noise generator, designed by D. Broadus "Don" Keele, Jr., to create the low-frequency rumble, using recordings of the 1971 Sylmar earthquake as a reference. [3]
Rumble The measure of the low frequency (many tens of Hz) noise contributed by the turntable of an analogue playback system. It is caused by imperfect bearings, uneven motor windings, vibrations in driving bands in some turntables, room vibrations (e.g., from traffic) that is transmitted by the turntable mounting and so to the phono cartridge.
The report "A Review of Published Research on Low Frequency Noise and its Effects" [54] contains a long list of research about exposure to high-level infrasound among humans and animals. For instance, in 1972, Borredon exposed 42 young men to tones at 7.5 Hz at 130 dB for 50 minutes.
A "rumble filter" is a high-pass (low cut) filter with a cutoff typically in the 20 to 40 Hz range; this is the low frequency end of human hearing. "Rumble" is a type of low-frequency noise produced in record players and turntables, particularly older or low quality models.
As for its noise level? Users report wearing it in public (dinner, the movies) and not being detected. ... Je Joue's low-frequency rumbling is quiet, but seems to penetrate more deeply than buzzy ...