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Audio Dynamics 101: Compressors, Limiters, Expanders, …
https://www.izotope.com/en/learn/audio-dynamics-101-compressors-limiters-expanders-and-gates.html
If the signal were at 2 dB (2 dB above the threshold), the signal would be amplified to 6 dB at the output. The louder parts of the signal are now louder. In a downward expander, a ratio of x:1 attenuates signal to a level of x dB below the threshold for every 1 …
Software-Based Audio Signal Dynamics Expander
http://www.wseas.us/e-library/conferences/2012/Kos/CIRSYS/CIRSYS-90.pdf
which the hardware audio signal dynamic expander design is based [3]. The function and performance of the software are discussed in this paper and the employed algorithms are described here as well. Key-Words: - audio dynamics, expansion, digital signal processing, software, expander . 1 Introduction The Dynamic Expander application serves for ...
What is an Expander? - Record, Mix & Master
https://recordmixandmaster.com/2010-06-what-is-an-expander
Expanders increase the difference in loudness between quieter and louder sections of audio making quiet sounds quieter and loud sounds louder. They are pretty much the opposite of compressors working by turning down the volume when the signal level falls below the threshold and turning the volume back up when the signal level goes above the ...
Audio signal expander apparatus - Video Technology ...
https://www.freepatentsonline.com/5159636.html
An audio signal expander apparatus for integration into a satellite receiver for recovering audio signal transmissions carried by satellite services utilizing compressed audio signal transmission processing wherein the incoming audio signal is expanded by a ratio which varies with both the audio signal amplitude and audio signal frequency.
Audio Expansion - Media College
https://www.mediacollege.com/audio/processing/expansion/
Audio Expansion. Audio expansion means to expand the dynamic range of a signal. It is basically the opposite of audio compression.. Like compressors and limiters, an audio expander has an adjustable threshold and ratio.Whereas compression and limiting take effect whenever the signal goes above the threshold, expansion effects signal levels below the threshold.
Mixing with Expanders | Icon Collective Music School
https://iconcollective.edu/mixing-with-expanders/
Upward expanders are often used to emphasize the peaks of an audio signal. They increase dynamic range by turning up the signal when it exceeds a set threshold. So rather than attenuating quieter sounds like a standard expander, they amplify louder sounds. The signal levels below the threshold will remain unchanged.
The Noise Gate And The Expander - A Simple Guide
https://www.practical-music-production.com/noise-gate/
Audio Expander . This device is very similar to the gate. The only major difference is that instead of muting the signal once it falls below the threshold, the expander still lets some signal through but at a lower level, resulting in a signal of lower volume.The level of signal that’s reduced is controlled by the ratio setting on the audio expansion unit.
Expander Filter | OBS
https://obsproject.com/eu/kb/expander-filter
An expander reduces the level of an audio signal by applying gain reduction, similar to a compressor but below the threshold instead of above it. An expander can be used in place of a gate for noise reduction, they can produce a smoother open and close due to having an adjustable ratio whereas a gate is a fixed.
Video Surveillance and Security Varna - SOD Varna
http://www.sodvarna.com/en/services/video-surveillance/
The technical teams of SOD Varna are professional enough to offer you a video surveillance system with various functions: video and audio signal recording in real time, monitoring via web, searching for and reproduction of recordings, remote (via Internet) reviewing of records, notification of an event by SMS and e-mail and a number of other functions.
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