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Audio Gain Control Using Digital Potentiometers - …
https://pdfserv.maximintegrated.com/en/an/AN1828.pdf
Audio Gain Control Using Digital Potentiometers Dec 26, 2002 Abstract: Digital potentiometers (pots) offer advantages for audio volume (gain) control applications and ... and again, the wide tolerance on end-to-end resistance means that L-R tracking suffers at any setting apart from the extremes. Figure 6 shows the idea. 3DJH RI
What Is A Gain Control? (It's NOT a Volume Control)
https://www.extremeaudio.org/what-is-a-gain-control/
Enter the gain control. The purpose of a gain control is to tune the amp’s input stage to accept the head unit’s voltage level. Think about it like a cellphone conversation. Your job is to listen to the person on the other end. With phone turned down too low, you can’t hear the other person over the background noise around you.
AUDIO engineering society Automatic Audio Gain …
https://www.aes.org/aeshc/pdf/how.the.aes.began/hathaway_automatic-audio-gain-controls.pdf
Audio Gain Control-such as frequency response, input and output impedance, signal-to-noise ratio, and harmonic dis- tortion-are similar to those of ordinary amplifiers. It is essential in the meas- urement of some of these either to block out the control circuit or else to employ a signal level which is safely below the
Audio Compression Amplifier /AGC - ElectroSchematics.com
https://www.electroschematics.com/audio-compressor-agc/
This is an audio compressor/AGC (automatic gain control) with an astonishing 75db input voltage range. A P-Channel JFET is used as a variable resistance element that is applied as a variable attenuator. Distortion is minimized by keeping the signal voltage across the JFET extremely low (1.3mV). This is an improvement over similar circuits that ...
Audio Gain Control Using Digital Potentio | Maxim …
https://www.maximintegrated.com/en/design/technical-documents/tutorials/1/1828.html
Audio Gain Control Using Digital Potentiometers. Abstract: Digital potentiometers (pots) offer advantages for audio volume (gain) control applications and can replace bulky mechanical pots, especially in handheld portable devices such as MP3 players, PDAs, cell phones, mobile Internet devices, or stereo AM/FM radios.
Audio level control with resistive optocouplers.
http://www.cresttech.com.au/pdf/Silonex/levelcontrol.pdf
Audio level control with resistive optocouplers. Series attenuator Figure 6 shows the attenuation and distortion vs. control voltage of the circuit in Figure 1, driven by the constant current source. Please note that the horizontal scale is in mA, for example 300 m =300 microamps. Input signal was 1 KHz, +10 dBu. The high dark resistance
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