Questions tagged [volume]

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1answer
64 views

Volume control for chinese lightsaber

I've got a cheap chinese lightsaber and want to make some adjustments to it. The item looks great but its volume is too loud and my neighbours get mad when I switch it on. It doesn't have any way to ...
0
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1answer
58 views

Bypass volume potentiometer

Can't get my headphones replaced in warranty during COVID lockdown so I am forced to fix the old ones. I have a pair of old headsets that have this volume potentiometer that I would like to bypass ...
2
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0answers
38 views

Strange leak problem in simple tone control circuit

I built the following circuit (physically): V1 is my audio signal and the circuit is a simple tone and volume control. When both the volume and the tone pot are turned all the way down (so each wiper ...
0
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1answer
109 views

What component is the infinite volume knob?

I am looking for the name of potentiometer like component which built in keyboards like Logitech G910, it sending just a plus and minus data I assume. Thanks
0
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1answer
37 views

How to Cascade Filters and Audio Volume Control

I am trying to output PWM from an MCU, filter it with a LPF to form an analog signal, cascade an audio volume control that allows for smooth control between silence and a somewhat amplified signal, ...
0
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2answers
215 views

Marantz PM6005 potentiometer

I am looking to change faulty, scratchy Alps potentiometer (RK168 series - 50k ohms) in my amplifier. This is not available easily but 100k is available. Will 100k work the same way as 50k without any ...
0
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3answers
64 views

Quad voltage controlled resistance

In order to have a quad volume control, I thought of having a single log pot between a DC negative source and 4 gates of 4 matched JFET's as shown above. We're talking audio here, I haven't calculate ...
1
vote
1answer
223 views

CD4011 Oscillator Square Wave Output Fed to Transistor Audio Amplifier; Volume Control Question

I built an audio frequency square wave oscillator using 3 gates on a CD4011 quad NAND gate IC. I then fed the output of the oscillator (pin 11) to a very basic "push-pull" transistor amplifier on the ...
16
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2answers
2k views

Potentiometer like component

Okay you might get this a lot around here; I'm trying to figure out the inner workings of this specific potentiometer like component. I want to get my hands on the datasheet or a similar components ...
3
votes
2answers
583 views

Volume control for LM386

For some context, see my earlier question: Ceramic capacitor value for an LM386N project What I learned is that the 10k potentiometer on pin 3 (Vin) forms a voltage divider. When I carefully dial it, ...
0
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3answers
141 views

perceived loudness of noise vs. sine wave

I am trying to understand what gains I need to use each for a white noise generator and a pink noise generator for a human ear to perceive the loudness to be the same as it is for a 440 Hz sine wave ...
2
votes
1answer
144 views

Voltage divider to drop volume of one speaker by 1.5dB

I have a a balanced stereo audio source, being fed into a headphone amplifier. Both source and amplifier are connected via a pair of 3-pin XLR cables, one for each channel. The amplifier then outputs ...
0
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2answers
69 views

Is it better to control an amplitude of audio signal or gain?

I'm creating simple headphones amplifier with an opamp (basic non-inverting config with RC high-pass on NI) and I wonder, what's better - to control an amplitude of input signal, or a gain of an opamp?...
3
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1answer
367 views

Microcontroller PWM output volume

So I am designing a cheap and simple sound device using the Atmega32U4 uC and stumbled across one problem. I am using the 10-bit PWM output of the uC to output audio and I want the user to be able to ...
1
vote
1answer
328 views

How to add an UPS beeper volume controller so that I can make it sound quieter when it beeps?

I've an EATON 5E850iUSBDIN 850VA/480W UPS. This UPS makes a very loud beep sound both when it's first plugged into the mains(short beep) and when it's first turned on from the button(3x longer beep)...
1
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3answers
715 views

Potentiometer/attenuator between amp and speaker

I have a setup where an amplifier with 2 channels drives four 8 ohms 80 watts speakers on each channel. The amplifier has a single volume knob which controls volume of both channels at once. What I ...
1
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1answer
264 views

Audio volume levelling / AGC for spectrum analyser

I'm busy building a preamp, and want to include an LED-matrix spectrum analyser on the front panel (for aesthetics, not accuracy!) I've set up a circuit that uses a couple of MSGEQ7 chips to analyse ...