THD+N versus Frequency
... Why is the Noise-dominated region typically lowest in THD+N values? Spectral content dominated by the amplifier’s noise as opposed to its harmonics. Without noise, the curve would continue to decrease with a slope of +20 dB/decade at low frequencies ...
... Why is the Noise-dominated region typically lowest in THD+N values? Spectral content dominated by the amplifier’s noise as opposed to its harmonics. Without noise, the curve would continue to decrease with a slope of +20 dB/decade at low frequencies ...
3-Channel, Low-Power Video Amplifier with I
... THS7303 is a low-power, single-supply, 2.7-V to 5-V, 3-channel integrated video buffer. It incorporates a selectable fifth-order Butterworth filter to eliminate data converter images. The 9-MHz filter is a perfect choice for SDTV video including composite (CVBS), S-Video, and 480i/576i Y'P'BP'R, and ...
... THS7303 is a low-power, single-supply, 2.7-V to 5-V, 3-channel integrated video buffer. It incorporates a selectable fifth-order Butterworth filter to eliminate data converter images. The 9-MHz filter is a perfect choice for SDTV video including composite (CVBS), S-Video, and 480i/576i Y'P'BP'R, and ...
V - Physics | Oregon State University
... How many T0 periods elapse in the damping time? This number (times π) is the Quality factor or Q of the system. ...
... How many T0 periods elapse in the damping time? This number (times π) is the Quality factor or Q of the system. ...
Document
... two critical frequencies and rejects all others. • A band-stop filter rejects frequencies between two critical frequencies and passes all others. • Band-pass and band-stop filters can be made from both series and parallel resonant circuits. •The bandwidth of a resonant filter is determined by the Q ...
... two critical frequencies and rejects all others. • A band-stop filter rejects frequencies between two critical frequencies and passes all others. • Band-pass and band-stop filters can be made from both series and parallel resonant circuits. •The bandwidth of a resonant filter is determined by the Q ...
Equalization (audio)
Equalization (British: equalisation) is the process of adjusting the balance between frequency components within an electronic signal. The most well known use of equalization is in sound recording and reproduction but there are many other applications in electronics and telecommunications. The circuit or equipment used to achieve equalization is called an equalizer. These devices strengthen (boost) or weaken (cut) the energy of specific frequency bands.In sound recording and reproduction, equalization is the process commonly used to alter the frequency response of an audio system using linear filters. Most hi-fi equipment uses relatively simple filters to make bass and treble adjustments. Graphic and parametric equalizers have much more flexibility in tailoring the frequency content of an audio signal. An equalizer is the circuit or equipment used to achieve equalization. Since equalizers, ""adjust the amplitude of audio signals at particular frequencies,"" they are, ""in other words, frequency-specific volume knobs.""In the field of audio electronics, the term ""equalization"" has come to include the adjustment of frequency responses for practical or aesthetic reasons, often resulting in a net response that is not truly equalized. The term EQ specifically refers to this variant of the term. Stereos typically have adjustable equalizers which boost or cut bass or treble frequencies. Broadcast and recording studios use sophisticated equalizers capable of much more detailed adjustments, such as eliminating unwanted sounds or making certain instruments or voices more prominent.Equalizers are used in recording studios, radio studios and production control rooms, and live sound reinforcement to correct the response of microphones, instrument pick-ups, loudspeakers, and hall acoustics. Equalization may also be used to eliminate unwanted sounds, make certain instruments or voices more prominent, enhance particular aspects of an instrument's tone, or combat feedback (howling) in a public address system. Equalizers are also used in music production to adjust the timbre of individual instruments by adjusting their frequency content and to fit individual instruments within the overall frequency spectrum of the mix.The most common equalizers in music production are parametric, semi-parametric, graphic, peak, and program equalizers. Graphic equalizers are often included in consumer audio equipment and software which plays music on home computers. Parametric equalizers require more expertise than graphic equalizers, and they can provide more specific compensation or alteration around a chosen frequency. This may be used in order to remove (or to create) a resonance, for instance.