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Questions tagged [stereo]

Reproduction of an audio (stereophonics) or a video (stereoscopics) signals, through two separate channels.

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Best practices for combining dual mono to stereo? [closed]

I have two old-style telephone pickup coils, each of which has a 3.5mm mono (TS) male output. I made a simple adapter that just runs together the grounds from both inputs and connects each positive to ...
Michael's user avatar
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1 answer
72 views

TRS headphone output socket that may be used with a TS mono jack: how to prevent short to ground?

I'm using a TPA6132 headphone amplifier connected to a stereo (TRS) output socket. In my application, the output will usually be used as a line output, and only occasionally with headphones. The audio ...
one_three_three_seven's user avatar
1 vote
1 answer
96 views

TRS headphone jack wiring

Summary: I have an in-ear-headphone that I am trying to replace the TRS jack for. I have tried soldering the wires to a jack a couple of times with the same no-good result. The left speaker doesn't ...
Snowplow4371's user avatar
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1 answer
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How to make an active crossover Opamp filter an audio signal

Background I've built a few passive crossovers, but never done anything active and my electrical skills are newb at best. I wanted to test out an active crossover after reading into by-amping a stereo ...
Ricardinho's user avatar
0 votes
2 answers
389 views

Stereo speaker level input to line level mono output converter

I am trying to connect an amplifier with 100W RMS per channel output to a subwoofer that only has a single channel line level input. The amplifier does not have a volume controlled line/preamp output. ...
Peter's user avatar
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2 answers
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How to find where a jack stereo cable is interrupted

I have a jack stereo cable like the one in this video. It stopped working correctly (only one side of the audio could be heard), and when I unscrewed the male and female plugs, both looked a bit iffy. ...
user6376297's user avatar
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2 answers
392 views

Audio Mixer Circuit with Individual Volume

I'm trying to make an audio mixer circuit based on the amplifier circuit published by Scott Campbell. I have no knowledge of opamps so I'm taking it mostly as-is but the input signal I am going to ...
SukkoPera's user avatar
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3 votes
4 answers
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Volume gets lower when left and right audio channels are combined

I noticed that the volume of a speaker gets slightly lower when combining the left and right channels versus having ONLY one of the 2 channels connected to the speaker. I know that combining the left ...
Stelios Liakopoulos's user avatar
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3 answers
262 views

Need help with fixing JVC AX-311 amplifier

Electronics repair noobie here. I have tried to find the answer myself, but would like some assurance on this problem. The left channel of my JVC AX-311 amplifier is unstable, it sometimes works, and ...
Jozef's user avatar
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1 answer
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Why does a walkie talkie have TS for audio output and TRS for audio input? [closed]

Why does a walkie talkie have TS for audio output and TRS for audio input? Is there any sense to have stereo for microphone and mono for speaker? Why doesn't the manufacturer use TS for both audio ...
BrilliantContract's user avatar
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Two mono sound sources into one stereo aux cable

I have two entirely separate mono line-level audio sources. I want to plug them both into a stereo aux speaker, where one sound source goes through the left side of the aux speaker and other goes ...
Ian Gendel's user avatar
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Is it possible to use capacitors or diodes to safely connect two ATX PSUs in parallel for more power? [duplicate]

My school is throwing away some old PCs which are all nearly identical. They happily allowed me to get my hands on a couple of parts including the ATX power supply below. As I see from the spec ...
Παναγιώτης Θ's user avatar
-1 votes
1 answer
71 views

Second battery in UTV for stereo only

I am adding a second battery to a UTV just for the stereo. It is placed right next to the stock battery. I want the aux, stereo, battery to charge while running but when the IGN is off to be isolated. ...
teknotek's user avatar
0 votes
2 answers
710 views

What is the difference of summing left and right channel vs using just one of the two?

Speaking about the sound levels, which is the correct way to connect a stereo output to a mono input? Will the signal in case one be lower in amplitude, or is it not sessizable?
Cătălina Sîrbu's user avatar
4 votes
1 answer
524 views

Volume control for power amplifier

Recently we installed some speakers into our church's ceiling. I've worked a little bit with analog circuits before, so I thought about putting a volume potentiometer before the amplifier. I don't ...
ACEHOBOJOE's user avatar
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2 answers
396 views

Mono headphones to stereo jack

I'm in the middle of a project to adapt a mono aviation headset to a 3.5 mm plug. The headset is mono, the plug will be stereo. Can I just connect both L & R together and connect to the audio of ...
Marc's user avatar
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Connection of microphones to Stereo Audio Codec

I want to interface two electret microphones with a stereo audio codec. One mic will capture audio from one side of a box and the other one from the opposite side. I want to use TLV320AIC3254 from ...
Developing Electronics's user avatar
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What wattage should the resistors or pots be in a car audio voltage divider?

My new radio amplifies the output too much and my car stock amplifier is non-adjustable. The only solution (that I know) besides putting the stock stereo back in, is 4 voltage dividers. I'd like to ...
frog's user avatar
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2 votes
2 answers
488 views

I2S microphone data synchronization for left and right channel

I have I2S MEMS microphones (transmitters, stereo) in slave mode and a microcontroller in master mode. When the WS pin iw 0 (low) the data available on the SD pin is for the left channel (microphone ...
CuriousByte's user avatar
0 votes
1 answer
546 views

Stereo amplifier producing hum on certain conditions. How to troubleshoot/repair?

I recently acquired a stereo amplifier, Pioneer brand, A-303 model. Upon testing it, i noticed it produces an audible speaker hum (at about 100hz) whenever the bass and balance knobs are turned. I'm ...
Esquirish's user avatar
1 vote
0 answers
456 views

What trouble will I get into if I use a headphone jack for serial communication between two arduinos?

I have a project that requires two arduinos to exchange some information when connected together via wire. When the connection is made, Arduino A should start sending a message. When Arduino B has ...
Bas's user avatar
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-1 votes
2 answers
147 views

AC signal combination

I have a question about combining two AC signals into one. For my project I need to convert stereo audio to mono audio. For the conversion I used this circuit: I made this simple circuit on my ...
Randy Peeters's user avatar
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0 answers
312 views

Balanced Mono XLR output to Unbalanced Stereo Input

I have an Allen & Heath ZED-10 mixer with a balanced XLR output. All signals coming into this mixer are mono and therefore we were going to use a single balanced mono XLR main output (Left channel)...
D.R.'s user avatar
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10 votes
5 answers
6k views

Why is this 3-way speaker wired this way?

I found a service manual of a pair of 3-way speakers that were part of a mini integrated stereo system. These are Sony SS-H77 speakers, which have served me very well back in the day. Looking at the ...
ysap's user avatar
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1 answer
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identification SMD 3 Pin 3x1.5mm code 4B C39 for stereo camera

I am trying to build stereo camera using android or iphones. The pcb is from a wired selfie stick and works well. By using 2 pcb's with one push button, simultaneous photos can be taken. I have looked ...
Hackneyite's user avatar
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0 answers
143 views

How to combine a stereo audio signal, but maintain the original stereo separation?

A long time ago I had a CD player boombox and wanted to add a "subwoofer" to it (it was really just a small guitar amp with the EQ set to cut the highs and mids). The CD player had a 3.5mm ...
Pak's user avatar
  • 111
-1 votes
1 answer
618 views

How to make a two channel mono mixer with in balance control into stereo output

I wanted a circuit I thought was a basic pan control, but after mapping it out it wasn't so standard after all. The final design will have this exposed: two mono inputs (left and right), one stereo ...
Sam's user avatar
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1 vote
0 answers
325 views

How to build an audio mute button?

I'm planning on building a mute button that would physically cut the audio signal from or to my computer. This could be used for both input and output. I would like to be able to disconnect my ...
MFlop's user avatar
  • 465
0 votes
1 answer
91 views

Somehow the DSP library is combining a stereo channel to a mono one, any ideas?

I have a confusing problem that's happening to me, ill explain it to the best of my abilities with code, text, all that good stuff. THE PROBLEM: I have a laptop that uses its in-line output into an ...
Leoc's user avatar
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Use stereo DAC for mono application

I am developing an audio device that will have a mono audio output. I currently use the PCM5102A stereo DAC in my prototype as it is easy to find as a separate module. But it does have a stereo output,...
artsin's user avatar
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1 vote
1 answer
465 views

How to connect microphone mono to stereo power amp

I try to connect mono microphone to stereo power amp like this image. I connect line of microphone to left and right of power amp input and ground of microphone to ground of power amp but it have no ...
user58519's user avatar
  • 111
0 votes
1 answer
68 views

TPA0253: Help Understanding Mono Output

I'm working on implementing an audio amplifier into a circuit design, and I am trying to understand the output configuration for the speaker using the TPA0253. I will be using a 8 ohm, 1W speaker for ...
Jayvin Street's user avatar
0 votes
1 answer
178 views

Using car radio output jacks for input

On the backside of my Sondpex RUSX903 car radio I found two RCA jacks: a red and a white one. With an adapter cable I connected these to my cellphone headphone jack. So far so good, I noticed two odd ...
user1785730's user avatar
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2 answers
646 views

Speaker wired in parallel & connecting to stereo amplifier [closed]

I just bought two 2-way in-ceiling speakers (Yamaha NS-IC800). Each of them is rated at 8 ohms. I wired them in parallel (so it's 4 ohms in total): The amplifier I will be using is Nobsound NS-20G ...
HA E's user avatar
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1 vote
1 answer
415 views

Connecting Stereo Jack Socket

I have the following Stereo Jack Socket, but I think Its pin layout is different than the socket images available on the internet. Please show me how to connect this female socket to the circuit (L, R,...
Vishal's user avatar
  • 63
1 vote
2 answers
624 views

Mono to stereo circuit only if one cable is plugged in

Im not sure how to phrase my question or what to google, but does anyone know how this feature is implemented (eg a simple example circuit): On some audio mixers, if only the left channel is plugged ...
alexmac22347's user avatar
1 vote
0 answers
263 views

Common ground for subwoofer-out

I have a Sony Sony DSX-A110u which is a car stereo having 4*55W Speaker out and a Sub-woofer out. The subwoofer-out port it a female RCA jack. which looks like this - I am using the sub-woofer out ...
GeekWithGlasses's user avatar
2 votes
0 answers
69 views

Summing Audio Channels

I’m trying to sum my car stereo output. Factory output has bass on one output and mid and tweeter on another output giving me 2 channels for left and 2 channels for right. Ideally I’d like to sum ...
Phils Channel Various Stuff's user avatar
-2 votes
1 answer
110 views

How can I add a raspberry to a touchscreen car dvd unit? [closed]

I am working on converting a Toyota 2-din touch screen dvd stereo unit into a car computer. I would like to add a raspberry to it and be able to have the raspberry display a browser on the touch ...
James Okwudili Agada's user avatar
0 votes
2 answers
333 views

Noise on stereo summing circuit from LED's

I've been a tinkerer and hobbyist for 20 years now, but mostly in software. I've done my fair share of simple soldering (replaced controller ports on an original Xbox with actual USB ports, for ...
pdm's user avatar
  • 101
1 vote
1 answer
321 views

How to get stereo and mono signals simultaneously?

I have PAM8403 circuit module to drive my two 3W speakers. I want to drive a subwoofer with a different amplifier. I have a 3 inch subwoofer, and I'll get an amplifier for that. My question is how do ...
Hash Tang's user avatar
0 votes
1 answer
134 views

How many Watts is my stereo? [closed]

I have a Pioneer SX-316-S stereo. It has six speakers. The specification says it consumes 320 Watts. It also says the continuous power output is 100W per channel. It also says the RMS power output is ...
Magmatic's user avatar
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0 votes
1 answer
187 views

Adapter to plug home audio system speakers into computer

I'm wondering if there is an adapter I can use to plug two speakers that came with my home audio system into a laptop. My laptop has an auxiliary port (not sure what the technical name is) that I plug ...
Ion's user avatar
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1 vote
1 answer
91 views

Do I need a stereo digital microphone? [closed]

I am working on a voice recording application. The circuit simply has microcontroller, flash memory and mems digital microphone. What are the advantages of using a stereo microphone on the quality ...
Berker Işık's user avatar
0 votes
2 answers
831 views

Connect IR Emitter (+) to IR Receiver (+)?

I have a vehicle stereo deck that has an IR receiver input (+) and a steering wheel control module that has an IR emitter LED (+/-). The steering wheel control module, "translates" (using a mapping ...
Nick Betcher's user avatar
3 votes
1 answer
2k views

DIY Aux In connection to car stereo JVC KD-G151

I would like to connect my phone via jack cable (aux in) to my car stereo, which has no aux input (brand: JVC KD-G151). It is a CD player, so i wrote a silent disk to operate the cd player, and tried ...
davidszasz91's user avatar
0 votes
3 answers
2k views

Mono to Stereo Pan Knob

I am trying to make a small box to take the mono audio output form my analog synth and run it through a panning knob so I can control where in the stereo mix the mono signal is placed. The goal is to ...
Rozgonyi's user avatar
  • 105
1 vote
3 answers
648 views

Vacuum tube stereo amplifiers with an odd number of tubes

While researching the world of vacuum tube audio amps, I noticed that many commercially available stereo amps have an odd number of tubes. Here's a random example. How can a decoupled stereo sound be ...
ysap's user avatar
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0 votes
3 answers
304 views

Does somebody have a schematic for a stereo electret condenser microphone?

I’m trying to use a Cmoy headphone amp (built around an OPA2227P chip) as a hard-wired in-ear-monitor. I bought a stereo electret condenser microphone from Jaycar this afternoon, but I can’t get any ...
Muzzlitebeer's user avatar
0 votes
2 answers
655 views

Stereo or bridged mono? (LA4597)

I have a stereo amp (LA4597) and is currently wired in a standard stereo circuit. Recently, I read an updated answer from one of my questions stating that wiring the amp in bridged mode doubles the ...
Ground's user avatar
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