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Automatic Gain Control IC for Audio Application | All ...
https://forum.allaboutcircuits.com/threads/automatic-gain-control-ic-for-audio-application.147215/
I'd like to build a circuit which takes a variable-level audio input (no DC bias), and outputs a relatively fixed-level audio signal. Input: variable range, 0+/-1V to 0+/-12V (it's a radio output that a user can control the volume for) Output: fixed, 0+/-6V I'm trying to find the right IC to do this, and the right way to wire it up.
AN-1451LM4935 Automatic Gain Control (AGC) Guide
https://www.ti.com/lit/an/snaa028a/snaa028a.pdf
Automatic Gain Control (AGC) Overview www.ti.com 1 Automatic Gain Control (AGC) Overview A microphone is typically used in an environment where the level of the audio source is unknown. The LM4935 features an Automatic Gain Control (AGC) circuit that addresses this situation by compensation for significant variations in level from a microphone’s input.
arduino - Auto Audio Gain Control IC for normalized audio ...
https://electronics.stackexchange.com/questions/313889/auto-audio-gain-control-ic-for-normalized-audio-from-line-level-input
Auto Audio Gain Control IC for normalized audio from line level input. Ask Question Asked 4 years, 6 months ago. Active 4 years, 6 months ago. Viewed 633 times 0 \$\begingroup\$ The problem I am having is like this: I am using an aux cord line level output from a smartphone to a MSGEQ7 chip which samples the frequencies and splits it into 7 ...
Audio Gain Control Using Digital Potentio | Maxim …
https://www.maximintegrated.com/en/design/technical-documents/tutorials/1/1828.html
The gain of this circuit can be shown as: AV = (1 - K N)/(K P - K N) Where K N is the negative feedback fraction and K P is the positive feedback fractions. For the example in Figure 4, K N = 100kΩ/(100kΩ + 50kΩ) or 2/3, and K P is variable. Figure 4. ±6dB stereo gain trim control, 17 gain settings in an improved design.
Volume Control ICs | Products | Audio | TI.com
https://www.ti.com/audio-ic/amplifiers/volume-control-ics/products.html
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What Is A Gain Control? (It's NOT a Volume Control)
https://www.extremeaudio.org/what-is-a-gain-control/
Extreme Audio Understands Gain Controls. You should now have a new appreciation for a properly tuned gain control, so go outside, crank up the tunes, and enjoy! If you don’t have an amplified system yet, well… What are you waiting for? At Extreme Audio, we understand how to properly tune your system and set your gain controls. We have all the right equipment and we …
Automatic Gain Control Circuit - ElectroSchematics.com
https://www.electroschematics.com/automatic-gain-control/
The automatic gain control circuit AGC provides a signal with less harmonics and additional amplification, between certain limits. As a result, it eliminates those intensity differences, annoying, and of speech music, which sometimes appear on radio and television. Field effect transistors T1 is used as a variable resistance.
Trying to understand this gain control circuit | diyAudio
https://www.diyaudio.com/community/threads/trying-to-understand-this-gain-control-circuit.380783/
The GAIN control is a 10K audio taper pot, the output I shared is a logarithmic sweep of that value showing the gain of the circuit at different values. The output impedance of the input generators is 18.2K, which was determined from earlier stages of the schematic - with R6 and R8 it creates the -20dB pad I mentioned in the original post.
MAX9814 Microphone Amplifier with AGC and Low-Noise ...
https://www.maximintegrated.com/en/products/analog/audio/MAX9814.html
The MAX9814 IC contains a low-noise amplifier, an output amplifier, a microphone bias-voltage generator, and automatic gain-control (AGC) internal circuitry. The overall gain of the microphone amplifier is selectable to 40dB, 50dB, or 60dB without compression.
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