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Bose Acoustic Wave Music System CD-3000 with CD player and FM radio. The first "Wave" product was the "Acoustic Wave Music System" (AWMS-1), which was a tabletop mini-hifi system that was introduced in 1984. The AWMS-1 consisted of an AM/FM radio, cassette player, two 2-inch tweeters, and a four-inch woofer. [2]
A boombox is a transistorized portable music player featuring one or two cassette tape players/recorders and AM/FM radio, generally with a carrying handle. Beginning in the mid-1990s, a CD player was often included. [2] Sound is delivered through an amplifier and two or more integrated loudspeakers.
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 ...
Delivered Audio Quality, abbreviated as DAQ, is a measure of audio quality over a transmission medium. This metric is often used to quantify the quality of audio heard over a radio system. DAQ levels are defined by the following scale. DAQ 1: Unusable. Speech present but not understandable. DAQ 2: Speech understandable with considerable effort.
AAD is the SPARS code (highlighted in red) on Madonna's 1990 album, The Immaculate Collection. The SPARS code is a three-position alphabetic classification system developed in the early 1980s by the Society of Professional Audio Recording Services (SPARS) for commercial compact disc releases to denote aspects of the sound recording and reproduction process, distinguishing between the use of ...
The Super Audio CD (SACD) format was created by Sony and Philips, who were also the developers of the earlier standard audio CD format. SACD uses Direct Stream Digital (DSD) based on delta-sigma modulation. Using this technique, the audio data is stored as a sequence of fixed amplitude (i.e. 1-bit) values at a sample rate of 2.884 MHz, which is ...
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]
DAC-in-the-Box, an external digital-to-analog converter intended to improve the sound of the user's CD player. Audio Alchemy was a high end audio equipment manufacturer based in California, USA. The company was first formed in the late 1980s, producing many lines of relatively affordable audio products, including CD players, transports, digital ...