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Audio Compander Circuit - ElectroSchematics.com
https://www.electroschematics.com/audio-compander-schematic/
Audio Compander Circuit Received by Email This audio compander circuit schematic is equiped with NE575 produced by Signetics, it is working with a 3 – 7V battery and has a current consumption of 3.5mA at 3V and 5mA at 7V. The companding process ( input compression, output as expander) is improving the signal/noise ratio on a communication line.
Finally...a Motorola Talkabout FRS radio WITHOUT …
https://forums.mygmrs.com/topic/2948-finallya-motorola-talkabout-frs-radio-without-companded-audio/
It is an audio enhancement feature to try to improve the audio S/N ratio. Motorola claims it helps the audio sound "clearer" compared to other radios. Motorola calls their companding system "X-Pand" and implemented it across their product lines. With Motorola's top tier radios, the compander can be enabled or disabled per channel.
NICAM - Wikipedia
https://en.wikipedia.org/wiki/NICAM
Near Instantaneous Companded Audio Multiplex (NICAM) is an early form of lossy compression for digital audio.It was originally developed in the early 1970s for point-to-point links within broadcasting networks. In the 1980s, broadcasters began to use NICAM compression for transmissions of stereo TV sound to the public.
What is companding ??? | RadioReference.com Forums
https://forums.radioreference.com/threads/what-is-companding.194887/
It's a means of compressing the audio wave form at transmission, and decompressing it at the receiver. The end result in both digital and analog implementations is an increased signal to noise ratio over what the communications channel is otherwise capable of providing if companding wasn't being used.
TK-2360/3360 | Land Mobile Radio | Communications ...
https://www.kenwood.com/usa/com/lmr/tk-2360_3360/
Companded audio per channel Talk around BCL (busy channel lockout) Key lock Slim, Compact & Lightweight Robust & Water-Resistant Clear and Crisp, Enhanced Audio UHF Wide Band Coverage 16 Channels with 4/8/12-Channel Stopper UHF 5W Output Power Programmable Function Keys with Hold Programmable Voice Inversion Scrambler* Signaling Eergency Function
Recommended Practices for Enhancing Digital Audio ...
https://www.cs.columbia.edu/~hgs/audio/dvi/IMA_ADPCM.pdf
type, 8-bit companded (both µ-law and A-law) addresses the native format of many workstations and several industry products compatible with telephony standards. A second, 8-bit unsigned linear is a type used in the PC and Macintosh environment.
Compander set to off by default. - myGMRS.com Forums
https://forums.mygmrs.com/topic/2533-compander-set-to-off-by-default/
In Compandering, Audio is compressed upon transmit, and expanded upon receive. This allows for a potentially better "envelope" of audio response to be compressed into a given amount of bandwidth. However, it requires more manipulation of the audio components of human voice. You give up a bit of audio purity when using Compandering.
License-Free • TK-3701DE Specifications • KENWOOD Europe
https://www.kenwood.eu/comm/license_free/TK-3701DE/?view=details
Digital and Analogue: License-free dPMR446 and PMR446 operation in an all-in-one package that's ready for immediate use: 48 Channels pre-programmed with the 16 Analogue PMR446 Frequencies plus 32 dPMR446 Digital Frequencies
Near Instantaneous Companded Audio Multiplex - definition ...
https://www.thefreedictionary.com/Near+Instantaneous+Companded+Audio+Multiplex
( ˈnaɪkæm) n acronym for (Electronics) near-instantaneous companding system: a technique for coding audio signals into digital form Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 Want to thank TFD for its existence?
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