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An idealized and extreme smiley face curve shown using a 29-band graphic equalizer. A smiley face curve or mid scoop [1] in audio signal processing is a target frequency response curve characterized by boosted low and high frequencies coupled with reduced midrange frequency power.
For example, in Europe, for many years recordings required playback with a bass turnover setting of 250 to 300 Hz and a treble rolloff at 10,000 Hz ranging from 0 to −5 dB, or more. In the United States, practices varied and a tendency arose to use higher bass turnover frequencies, such as 500 Hz, as well as a greater treble rolloff such as ...
Equalization, or simply EQ, in sound recording and reproduction is the process of adjusting the volume of different frequency bands within an audio signal. The circuit or equipment used to achieve this is called an equalizer. [1] [2] Most hi-fi equipment uses relatively simple filters to make bass and treble adjustments. Graphic and parametric ...
Dynamic equalization involves variation of the equalizer characteristics in the time domain as a function of the input. Due to the varying nature, noise is reduced compared to static equalizers. Harmonic synthesis involves the creation of higher order harmonics from the fundamental frequency signals present in the recording. As noise is usually ...
Bass (/ b eɪ s / BAYSS) (also called bottom end) [2] describes tones of low (also called "deep") frequency, pitch and range from 16 to 250 Hz (C 0 to middle C 4) [3] and bass instruments that produce tones in the low-pitched range C 2-C 4. They belong to different families of instruments and can cover a wide range of musical roles. Since ...
Bass traps are typically used to attenuate modal resonances and so exact placement depends on which room mode one is trying to target. Bass traps typically combine structural mechanisms that can work at both positions of high particle velocity/low pressure (thick fiberglass) and high pressure/low particle velocity (membranes).
Tuning machines (with spiral metal worm gears) are mounted on the back of the headstock on the bass guitar neck. The standard design for the electric bass guitar has four strings, tuned E, A, D and G, in fourths such that the open highest string, G, is an eleventh (an octave and a fourth) below middle C, making the tuning of all four strings the same as that of the double bass (E 1 –A 1 –D ...
The double bass is the sub-bass instrument of the orchestral strings family, as it produces the pitches in the lowest register for this family. Sub-bass sounds are the deep, low-register pitches below approximately 70 Hz [ 1 ] (C ♯ 2 in scientific pitch notation ) and extending downward to include the lowest frequency humans can hear ...