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Audio noise measurement information


Audio noise measurement is a process carried out to assess the quality of audio equipment, such as the kind used in recording studios, broadcast engineering, and in-home high fidelity.

In audio equipment noise is a low-level hiss or buzz that intrudes on audio output. Every piece of equipment which the recorded signal subsequently passes through will add a certain amount of electronic noise the process of removing this and other noises is called noise reduction.

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Audio noise measurement

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Audio noise measurement is a process carried out to assess the quality of audio equipment, such as the kind used in recording studios, broadcast engineering...

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Noise measurement

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In acoustics, noise measurement can be for the purpose of measuring environmental noise or measuring noise in the workplace. Applications include monitoring...

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Audio system measurements

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Audio system measurements are a means of quantifying system performance. These measurements are made for several purposes. Designers take measurements...

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Noise

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for detection. In audio engineering, noise can refer to the unwanted residual electronic noise signal that gives rise to acoustic noise heard as a hiss...

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Active noise control

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Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition...

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Audio power

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including power output. Programme level Audio system measurements Sound level meter Audio noise measurement "Understanding Power Amplifier Power Ratings"...

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Noise reduction

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Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort...

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Audio analyzer

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An audio analyzer is a test and measurement instrument used to objectively quantify the audio performance of electronic and electro-acoustical devices...

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Noise pollution

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Society Noise and vibration on maritime vessels Noise calculation Noise control Noise measurement Noise map Noise regulation Occupational noise Safe listening...

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Colors of noise

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In audio engineering, electronics, physics, and many other fields, the color of noise or noise spectrum refers to the power spectrum of a noise signal...

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Pink noise

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waterfall. It is often used to tune loudspeaker systems in professional audio. Pink noise is one of the most commonly observed signals in biological systems...

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Sound level meter

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468 noise weighting Audio system measurements Sound pressure Clap-o-meter General: Noise measurement Noise regulation Health effects from noise "What...

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Noise weighting

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used in telecommunications. A major use of noise weighting is in the measurement of residual noise in audio equipment, usually present as hiss or hum in...

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Noise spectral density

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noise spectral density (NSD), noise power density, noise power spectral density, or simply noise density (N0) is the power spectral density of noise or...

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Loudspeaker measurement

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exceptionally well with sound quality listening tests. Audio power Audio noise measurement Audio quality measurement Bandwidth extension Directional sound Isobaric...

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Audio normalization

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the signal-to-noise ratio and relative dynamics are unchanged. Normalization is one of the functions commonly provided by a digital audio workstation....

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Weighting

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Machine Audio quality measurement G-weighting M-weighting Z-weighting ITU-R 468 noise weighting Psophometric weighting Weight function Noise measurement briefing...

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Wow and flutter measurement

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Measurement of wow and flutter is carried out on audio tape machines, cassette recorders and players, and other analog recording and reproduction devices...

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Loudness war

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for their sound quality include: Alignment level Audio noise measurement Audio system measurements Fader creep Headroom Loudness monitoring Needle drop...

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Total harmonic distortion

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(2l-1)}{2p}}\,,\qquad l=1,2,\ldots ,2p} see for more details. Audio system measurements Signal-to-noise ratio Timbre "Analytic Method for the Computation of the...

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Ambient noise level

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aircraft noise is studied by measuring ambient sound without presence of any overflights, and then studying the noise addition by measurement or computer...

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Audio bit depth

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microphone and room noise level, and hence of little consequence in 16-bit audio. 24-bit and 32-bit audio does not require dithering, as the noise level of the...

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Noise regulation

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23:00 and 07:00, so as not to interfere with residents sleep. Some noise measurement standards which takes into account different times of the day are...

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