analog audio


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analog audio

Recording audio in a format of continuous vibrations that are analogous to the original sound waves. Before audio recording became digital, sounds were "carved" into vinyl records or written to tape as magnetic waveforms. See audio cable.


"Carved" Sound
Sound is literally carved into a phonograph record because the groove undulations are analogous to the sound waves they represent.







Analog vs. Digital
The 78 RPM record (left) contains about four minutes of analog audio per side. The digital disc (right) holds about an hour's worth of CD music (CD-DA format) or 10 hours of MP3 songs.
References in periodicals archive ?
(1) Sampling frequency: the number of times per second at which analog audio is sampled to digitize its waveform.
To avoid these problems, Luis Artiz, director of product management, Business Division, Belkin International, said that the Belkin Secure Headset Adapter is the only solution available today that enables the use of analog audio devices in a secure environment.
Bundling with the companion chip ATC260x, this two chip combination has an integrated HDMI transmitter (TX), low-voltage differential signaling (LVDS) interface, Power Management Unit (PMU), Analog Audio Codec, Class-D amplifier and Ethernet MAC plus PHY.
For applications requiring the extension of analog audio signals along with HDMI signals, the HD-EXT2-C substitutes the RS-232 and IR control with stereo analog audio support.
It also accepts VGA input from a personal computer, as well as six pairs of analog audio inputs.
The Panasonic DMPES overhead system uses technology incorporating the System Controller with Analog Audio Output (SC-A).
It includes a player for CDs, DVDs and BluRay discs, an FM-RDS stereo tuner, an analog audio port, an iPod-/iPhone interface, two ports for USB data storage media and a LAN/WLAN port for rapid access to network-based mass storage device and to music and radio channels on the Internet.
DAISY Digital Talking Books go far beyond the limits imposed by analog audio books or commercial digital audio books.
Iron Mountain, which has operations in Southboro, said it preserves more than 6 million analog audio tapes, including priceless master copies.
Mac Pro also includes dual Gigabit Ethernet ports, optical digital input and output, analog audio input and output, and optional built-in support for AirPort Extreme and Bluetooth 2.0+EDR.
Instead, the system uses digital encoders that translate analog audio into Internet protocol (IP) that runs throughout the house over Category-5 wire.
A total of six analog audio, three video, and one enhanced SPDIF cables are required to get high-res audio and video passed through to the AV receiver and video monitor.