Keep in mind that only newborn babies can actually perceive frequencies up to 20 kHz. For reference, the maximum dynamic range that a person with normal hearing can perceive is around 120 to 130 decibels (dB), while the maximum frequency range of normal human hearing extends from 20 Hz to 20 kHz. The two primary characteristics of any home audio speaker system are dynamic range (the difference between the softest and loudest sounds the system can accurately store and reproduce) and frequency response (the range of frequencies the system can accurately store and reproduce at roughly the same level). That signal is then amplified and played on speakers or headphones. Likewise, when you put a CD in a CD player, a laser reads the digital information, which is sent to a digital-to-analog converter (DAC) that converts it back into an analog audio signal. When you play a digital-audio file from a computer, smartphone, or other digital device, a DAC converts the digital information to analog. If you’d like to learn more about all aspects of high-res music, check out this blog. So-called "high-resolution" digital audio files use higher sampling rates and bit depths the most common are sampling rates of 48, 96, and 192 kHz with a bit depth of 24 bits. This leads to the specs you might have heard: a sampling rate of 44.1 kHz and a bit depth of 16 bits, often written 16/44.1 or 44.1/16. On CDs, the waveform is sampled 44,100 times per second, and the level of each sample is encoded with 16 bits. Without getting too technical, the analog audio waveform is "sampled" many times per second, recording the instantaneous level of the waveform as it rises and falls using several digital bits to encode the level value of each sample. An analog audio signal enters an analog-to-digital converter (ADC), which converts the analog signal into digital information-a series of 1s and 0s. Those wiggles are converted to an audio signal, which is then amplified and played on speakers or headphones.īy contrast, digital-audio files store audio in the digital realm. A stylus or needle at the end of a tonearm is placed in the groove, and it wiggles with the undulations as the record moves beneath it. To listen to the audio on a vinyl record, you place it on a turntable, which spins the record at a certain speed. Those grooves actually look like the sound waves they represent in other words, they are analogous to the sound waves, hence the name analog. They store audio information as tiny undulating grooves in the surface of the vinyl record. SVS SoundPath RCA Audio Interconnect Cable SoundPath Tri-Band Wireless Audio Adapter
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