Questions tagged [microphone]
A sensor converting an acoustic signal into an electric one.
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How can I record with this old fashioned mono microphone? [closed]
I have this microphone that comes with a 3.5mm mono jack connector.
When I plug it in to my laptop or my phone it won't work, and I believe the "mono" part is the problem. What do I need to ...
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How do you choose an audio isolation transformer for a microphone?
I found a few SE Q/A's for audio transformer characterization, but they neither address calculating the impedance match, nor consider signal loss for weak audio sources (like those from a microphone).
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What type of cap would you use to block DC on a microphone-level audio line (unbalanced)?
I need to block a DC voltage on a microphone line, and a bit of research shows that MLCC is a bad idea because they can mechanically ring from vibration.
Question:
What type(s) of capacitor could be ...
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What is the maximum dBu I can send into a microphone input in this schematic?
The schematic below is from the Icom 9700 radio service manual (page 80). I would like to feed this input from a mixer board's ALT-3/4 outputs, and I want to avoid blowing the TS462 microphone preamp ...
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Aviation headset amplifier
What type of amplifier is on the market or can I use to get my microphone to work? I am converting a British combat headset to use in an open cockpit airplane. Right now current headsets just don't ...
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Audio project converting TSH-4 headset to 3.5 mm audio jack
I've been trying to connect this TSH4 headset to a 3.5 mm audio jack. The headset has kind of a weird setup, with Mono audio + and - being the top pins (I don't know which is which, but the polarity ...
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Digital Microphone Readings to dB SPL
I've seen previous answers on how to calculate the dB SPL based on my I2S readings but I can't come up with a formula to calculate it.
I use the MSM261S4030H0 I2S microphone with sensitivity of -26 dB ...
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3.3V regulator and Comparator not working as anticipated
This is my first time designing something like this so excuse my inexperience. My objective here is to create a simple circuit for checking if a particular component is good or has been damaged. From ...
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How can the microphone senstivity be improved? It works for only a few centimeters
I am using an electret microphone with the preamplifier circuit attached below. The problem is that the microphone works only when I speak very closely to the microphone. If I speak from a distance, ...
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What voltage comes from a standard 6.3 mm instrument cable?
I am designing an electric percussion instrument using various metal strings and objects that are hit my solenoids. Pickups record the sound.I need to know what kind of voltage and current instrument ...
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Why doesn't my microphone amplifier work?
I designed a microphone amplifier like in the simulation image below. The images of it in real life are also below. The microphone is a JLI2555. The input voltage used in the simulation is 1mV.
When I ...
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CB style PTT Mics to USB circuit
I need to design a circuit that takes the input from 2 different CB style (4-pin) push-to-talk microphones and pipes them out to USB. CB mics I have confirmed use regular XLR balanced level output. ...
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Disabling microphone when secondary one is connected
I'd like to add a 3.5 mm female jack to this circuit so that I can add a better external microphone while keeping the internal one for convenience. What would the circuit look like?
Putting both ...
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How to connect an external dynamic microphone to your smartphone (Android)
I use Google Translator so there may be errors in the text.
I have a problem with connecting a dynamic (not electret) microphone.
Dynamic microphones have too low resistance (this one has 200 ohms) ...
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Noise decibel meter - how to convert MAX4466 voltage output to unweighted dB(SPL)
Using this microcontroller with that electret microphone amplifier, I want to build an unweighted dB(SPL) meter as good as it can get - then compare it to this ready made breakout board, this NIOSH ...
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