Questions tagged [headphones]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
1 answer
46 views

Why do electronics and live wires cause a buzzing in my headphones

I have a pair of wired over the ear headphones with a normal headphone jack. I noticed a few days ago that if I went near wires that are plugged in or got close to electronics it would make a buzzing ...
3 votes
1 answer
229 views

What wire runs between two speakers on a headphone, and how do I replace it?

I have a Sennheiser HD 280 Pro pair of headphones. There is a wire running through the bow that connects the left speaker in the headphone to the right one (see drawing, red line), I managed to snap ...
  • 33
0 votes
0 answers
39 views

LM4910 headphone amplifier noise source

I built a headphone amplifier using the LM4910, following the typical application schematic in the datasheet. The noise floor of this IC is specified at around 50uV for a 32 Ohm load, while my circuit ...
0 votes
2 answers
52 views

GPD2846A mp3 module with headphones?

The GDP2846A module has an in-built 2W amplifier which is fine for a small speaker but not for a pair of headphones as it is indeed way too much. I've thought of directly taking the DAC outputs (...
2 votes
1 answer
72 views

Replacing a virtual ground circuit with center tapped transformer

I just bought a cheap headphone amp (those 47 Amp). I aiming to replace the voltage-divider-virtual-ground circuit with a 12v-0v-12v transformer (ofc with rectification). I checked the NE5532's VCC+'s ...
  • 125
4 votes
1 answer
125 views

How to properly couple DC in this biased headphone amplifier design on power-up?

I am a self-study noob to electronics (and audio electronics) but diligently learning every day :) Some things I understand well, others I'm fuzzy on. This device is a headphone amplifier using NE5532 ...
  • 141
3 votes
1 answer
725 views

Headphone output - what is the function of these resistors going to ground between the decoupling capacitors and headphones

The Korg Monotron Duo synth uses the TPA6111A2 headphone amp. The circuit they use is largely the same as the one from the datasheet - except for R78, the 470ohm resistor going to ground right after ...
2 votes
1 answer
76 views

How to use the button on a headset?

I want to implement push to talk on my custom PCB. I apply a 2V DC bias on the microphone line of the jack through a 2.2k resistor. While pressing the button of the headset I see the resistance ...
  • 33
0 votes
1 answer
188 views

What kind of wire is this? Copper wire with some kind of wool in it

I am trying to repair broken headphone wire with this amazon thing. Here is the first pic showing what I am trying to do: I made sure that black wire is working by playing something on the phone and ...
  • 117
1 vote
1 answer
53 views

Replacing headphone wire

I am trying to replace a broken head phone wire (with three terminals). Here is the overview of the headphone, showing the broken part: Here is the close up of the other end, showing it has three ...
  • 117
1 vote
3 answers
178 views

Discrete headphone amplifier output stage

What is the role of R13? I tried simulating this circuit using the Falstad simulator and removing it changed nothing. It is a circuit from Small Signal Audio Design by Douglas Self, second edition.
  • 13
0 votes
1 answer
72 views

I have an XMOS 7-mic board using the CS43L21 for DAC output. I get it working at 48 kHz, but not at 8 kHz, following the example of XMOS AN00219

What I am looking for is some open driver that tackles more than just 48 kHz. Or a trick, if there is one. PIN30 MCLK gets 24.576 MHz and I have internal counters to count down with, for the speed of ...
-2 votes
2 answers
65 views

Do I require an amplifier?

I am planning to do a simple DIY project to replace the cable on my Sennheiser HD 598, which has 50Ω impedance, with a bluetooth receiver, a 3.7V 1000mAh battery (and a charging board). My calculation ...
0 votes
1 answer
193 views

Headphone and speaker switching

I am having difficulty with a headphone plugged in and speaker mute configuration. I am using the SJ-3524-SMT-TR headphone jack and the TPA711DGN audio amplifier IC. What circuitry should I use with ...
-1 votes
1 answer
91 views

Headphones on a line output (vs. headphones output)

I'm designing a device using a DAC (TI PCM 2704 like this one to be precise,) and optionally a headphones amplifier. I noticed that connecting (32 Ohms, closed-back Beyerdynamic) headphones to the ...
  • 1,700
0 votes
0 answers
145 views

Looking for Power Transformer for ECC99 OTL Headphone Amp

I'm planning on building an OTL headphone amp using a pair of ecc99 (I got matched pair of soviet 6n6p in my hand). Eliminating output transformer would reduce the complexity of the circuit and the ...
  • 93
1 vote
0 answers
169 views

1 in 2 out portable headphone amplifier

Here's my idea of a portable headphone amplifier. A line receiver INA1650 (instrumentation amplifier with all its benefits) that feed two LM4880 that drive the headphones (with separate volume control....
0 votes
1 answer
120 views

Soldering headphone wires with another wire

I am trying to solder the wires of a headset back into another wire with the exact same wiring but I’m unsure how to approach the wires that shield the copper wire. There also seems to string in the ...
0 votes
0 answers
61 views

Telephone headset adaptor weak microphone and speaker sound

I have made a simple adaptor for a telephone P4C4 -- RJ9 -- separate headset output (The wiring diagram of a telephone handset can be viewed in this wikipedia article) to two TRS jack for an ordinary ...
3 votes
2 answers
504 views

How do I calculate sound pressure level (dB SPL) from headphones at a specific setting on my sound card?

I am using headphones with sensitivity 102 dB SPL / 1 Vrms with impedance of 300 ohms. For a particular volume knob setting on my sound card embedded with a headphone pre-amplifier, I would like to ...
0 votes
1 answer
59 views

Impedance sensing technology with headphone extension cord [closed]

I have a simple question and I've tried researching the topic but I don't understand the technology. My computer uses impedance sensing technology to set the impedance for headphones. My situation is ...
0 votes
1 answer
124 views

Capacitor and Resistor Values on Headphone Amp Out (highpass filter)

I'm more of a programmer than someone who knows electronics. Just trying to figure out what forumlas/method to get the right capacitor and resistor values in my headphone out circuit here. Would you ...
0 votes
2 answers
115 views

What are the wires of headphones made up of?

Of what material are headphone wires made up of? Are they made up of copper? Can can replace the wires in it with copper wire?
0 votes
0 answers
43 views

Mobile headset audio OUT to MIC of another mobile using adapters [duplicate]

I want give sound output of one android mobile to MIC of another android mobile using adapters only ( I can not build circuit). One person suggested some work around using adapters , Please find below ...
0 votes
2 answers
59 views

Is it possible to run a small circut off the power that is output from a unpowered headphone/speaker?

So I'm currently dreaming up my first PCB project! I would like to make a 1/4 audio switcher for my current audio setup (two outputs 1 input) I'm fairly new to electrical engineering I'm about 3 years ...
  • 1
0 votes
1 answer
76 views

What would be the best, cheapest, smallest way to power a Bluetooth bone conduction headset project?

Please, be forewarned, I'm an idiot when it comes to electronic builds. The last thing I soldered was a pick-up in a guitar kit I built, and the thing still isn't grounded right. I'm trying to build a ...
1 vote
0 answers
40 views

Would an LM7805 need a heatsink stepping down two stacked LiR2032/CR2032 (3.6V X2) batteries?

Okay, I'm terrible at anything electronic, especially when it comes to building from boards (think rudimentary understanding). I've built a few PC's in my day, but piecemeal, not from scratch. Keep ...
0 votes
1 answer
39 views

Replace 3.5mm Jack

I have a JBL T380A headphone, and it broke near 3.5mm jack. Do I have to replace this 3.5mm jack or can I combine these wires with an existing 3.5mm jack? Please leave your thoughts.
0 votes
1 answer
89 views

How do I wire a trs jack to a dual channel amplifier?

So I have a bluetooth audio amp circuit board. I believe it is dual channel it has two chips (one for left, one for right) The outputs are R+ R- L+ L-, but I want to wire them to a trs jack, which has ...
0 votes
0 answers
33 views

Automatic Headphone Control Issues

A friend wants an automatic headphone controller for his bike. According to the Android spec we should be able to add a bias resistor of 5kohm between mic and ground, short mic to ground for play/...
0 votes
0 answers
44 views

Earbuds with only 1 speaker working: will it draw less power from iPod battery?

I want to test battery life (music play time) for my iPod nano 6, but my earbuds has only one speaker working (other has a broken wiring). Will my test be accurate, i.e. will my earbuds draw the same ...
  • 103
9 votes
3 answers
2k views

Can an electrolytic capacitor withstand 0.1 V reverse polarity?

Let’s start the question with a brief description of my application. I am trying to attach a headphone jack with a detect pin to a RDA5807 IC based FM radio project. I am using a separate ...
  • 173
-2 votes
1 answer
53 views

How Can I Fix a Fraying Earbud Cable? [closed]

My KZ earbud is broken, I don't hear anything from the left speaker. After a quick inspection I noticed the cable is fraying. The cable is detachable but I don't want to buy a new one. Do you think I ...
1 vote
1 answer
428 views

How can I make a L+R+mic audio dongle to record an Android phone's own output?

I'm looking for a way to wire the stereo output of a device into its own mono microphone input. This will be soldered as a 4 pin 3.5mm TRRS audio jack. I need to record the output of my smartphone on ...
2 votes
6 answers
658 views

10Ω series resistor in output of headphones amplifier

I managed to reverse engineer a headphone amplifier in a USB DAC that I bought on aliexpress. As I expected there is a electrolytic capacitor in series to the output, but there is also a 10Ω resistor ...
  • 361
2 votes
0 answers
4k views

How to connect 5 colored wire headphone to 3.5 TRS jack?

I have a somictone headphone and I want to repair its headphone jack, It contains five colored wires. Here are the wire and TRS jack. Please give me a feedback Can you please tell me how to wire this?...
2 votes
0 answers
59 views

Portable Headphone Amp Power Supply 18V MCP73871 TPS61178 TPS7A470

Disclaimer: I'm fairly new to diyaudio, amplifiers, power supplies, schematics, PCB design and everything that this forum touches on (read: noob), so I urge you to be patient with me - I am eager to ...
0 votes
0 answers
471 views

Earphone wiring and how do I unscrew the housing from a 3.5mm plug?

The 3.5mm plug on my earphones broke. My earphone is the Xiaomi hybrid pro HD. It has the left and right earbud, a 3-button controller and a mic. It has 5 wires: ...
0 votes
2 answers
150 views

Connecting Headphone to Phone and Laptop via Switch

I am trying to build a small circuit which will connect my phone, laptop and headset with a switch. So in state 1, the headphone and phone will be connected and in state 2, the headphone and laptop ...
0 votes
0 answers
55 views

Headphone Jack wire coding is different

I recently opened my headphone jack because one side of headphones wasn't working There are 6 wires basically Dark green, dark blue, yellow, red and two copper wires Please help which wire should I ...
1 vote
1 answer
56 views

Connect multiple earphones (with microphone) to one computer

I would like to connect up to 4 pair of earbuds (the in-ear type, stereo, with a TRRS connector and a tiny condenser microphone located along the cable, think iPhone wired earbuds) to a single ...
  • 767
0 votes
2 answers
1k views

Headphones with 3 wires: blue, green, and copper

I'm trying to replace the male connector on my headphones. After cutting off the broken connector, there are three little wires sticking out, colored green, blue, and copper. What does each color ...
1 vote
1 answer
72 views

Is it possible to protect a headphone socket from contact wear while allowing for repeated removal/insertion of headhones? [closed]

I have an electronic home organ. I want to play music out loud some of the time, but at night to use headphones so as not to disturb people. The headphone socket works fine, and I could do this just ...
  • 11
3 votes
2 answers
254 views

Help me interpret this audio jack schematic

I'm having trouble interpreting the following schematic: From this drawing: Adam Tech ASJ-99H-R-HT-T/R drawing I want to know: Are 5 and 6 normally open (open when there's no plug inserted), or ...
1 vote
0 answers
95 views

Connecting copper and aluminium wires though a board

My g430 headphones recently broke and I narrowed it down to the wire that connects the left speaker to the right. The video I was watching recommends using a spare RCA cable to replace the wire, my ...
  • 11
0 votes
0 answers
682 views

Cutting the earbuds and keep the microphone: will it work?

I have old still functioning earphones with a microphone incorporated. I want to keep the microphone and remove the earbud so that I can then put the microphone inside a small pipe and record sounds. ...
3 votes
1 answer
263 views

Channel separation on a 3.5mm audio jack

I read an article regarding the removal of the 3.5mm audio jacks on phones. It quoted this: ...
  • 1,049
0 votes
1 answer
129 views

TRS connector for noice cancelling headphones has 5 wires inside cable, instead of 4

Scenario: 3.5mm TRS audio connector on a pair of Panasonic RP-HC200 Noise Cancelling headpohones is damaged, so I cut it off and I'm going to replace the connector from another pair. After cutting and ...
  • 101
1 vote
2 answers
524 views

Headset microphone is noisy, but touching speaker wires removes the noise

I'm repairing my simple wired headset which is composed of two little speakers and one microphone. The audio and mic jacks are separate. The speakers work fine. But the microphone is very noisy. As I ...
  • 113
1 vote
3 answers
876 views

The right way to have amplified speakers that mute when you plug in earphones

I am designing a handheld device that has an I2S DAC, small speakers, amplifiers (~2 watts), and an earphone jack. I'd love advice on the best way to hook these together. My goal is high quality audio ...
  • 121