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  2. Loudspeaker measurement - Wikipedia

    en.wikipedia.org/wiki/Loudspeaker_measurement

    One way to test a loudspeaker requires an anechoic chamber, with an acoustically transparent floor-grid. The measuring microphone is normally mounted on an unobtrusive boom (to avoid reflections) and positioned 1 metre in front of the drive units on the axis with the high-frequency driver. While this can produce repeatable results, such a 'free ...

  3. Audio system measurements - Wikipedia

    en.wikipedia.org/wiki/Audio_system_measurements

    The frequency range often specified for audio components is between 20 Hz to 20 kHz, which broadly reflects the human hearing range. Well-designed solid-state amplifiers and CD players may have a frequency response that varies by only 0.2 dB between 20 Hz to 20 kHz. [ 4 ]

  4. Audio equipment testing - Wikipedia

    en.wikipedia.org/wiki/Audio_equipment_testing

    The Audio Critic - Thirty-year publication, now online only, with in-depth independent verification of vendors' claims. Stereophile - Largest, oldest, and most read subjectivist magazine includes online reviews and articles. Audiocheck - Site for testing audio equipment and speakers; YouTube - 1-minute audio test for speakers and headphones

  5. Audio frequency - Wikipedia

    en.wikipedia.org/wiki/Audio_frequency

    An audio frequency or audible frequency (AF) is a periodic vibration whose frequency is audible to the average human. The SI unit of frequency is the hertz (Hz). It is the property of sound that most determines pitch. [1] The generally accepted standard hearing range for humans is 20 to 20,000 Hz.

  6. Audio analyzer - Wikipedia

    en.wikipedia.org/wiki/Audio_Analyzer

    An audio analyzer is a test and measurement instrument used to objectively quantify the audio performance of electronic and electro-acoustical devices. Audio quality metrics cover a wide variety of parameters, including level, gain, noise, harmonic and intermodulation distortion, frequency response, relative phase of signals, interchannel crosstalk, and more.

  7. Sound level meter - Wikipedia

    en.wikipedia.org/wiki/Sound_level_meter

    The sound level generated is 94 dB, which corresponds to a root-mean-square sound pressure of 1 pascal and is at a frequency of 1 kHz where all the frequency weightings have the same sensitivity. For a complete sound level meter check, periodic testing outlined in IEC61672.3-2013 should be carried out.

  8. Sound quality - Wikipedia

    en.wikipedia.org/wiki/Sound_quality

    Sound quality is typically an assessment of the accuracy, fidelity, or intelligibility of audio output from an electronic device. Quality can be measured objectively, such as when tools are used to gauge the accuracy with which the device reproduces an original sound; or it can be measured subjectively, such as when human listeners respond to ...

  9. Computer speakers - Wikipedia

    en.wikipedia.org/wiki/Computer_speakers

    Computer speakers, or multimedia speakers, are speakers sold for use with computers, although usually capable of other audio uses, e.g. for an MP3 player. Most such speakers have an internal amplifier and consequently require a power source, which may be by a mains power supply often via an AC adapter , batteries, or a USB port.