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 ?
Mini Converter Analog to SDI is perfect for converting from analog video in HD/SD component, NTSC, PAL or S-Video to SDI video with the choice to embed SDI audio from balanced AES/EBU or analog audio inputs.
Other Connectivity Features ,1 Ethernet Connection, 1 Analog Audio Input(s) for HDMI,
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.
For such a low-priced model, the Evergreen machine has an impressive array of inputs round the back, including component, composite, S-Video, coax, VGA PC and analog audio connections, and it'll also cope with CDR/RW, DVDRW (plus and minus varieties) and discs with MP3 toons on them.
In addition to digital information, a variety of non-digital information applications remain, including analog audio, analog video, many types historical scientific data, books, maps, old music, photographs, and medical images.