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Questions tagged [headphones]

The tag has no usage guidance.

0
votes
2answers
47 views

Converting a headphone output to line level

I have a guitar amp that has a headphone output. I would like to convert this signal to line level so I can use it in a small mixer along with other line level signals to be heard in "in ear" style ...
0
votes
0answers
58 views

Headphone Jack Detection Mechanism?

I am trying to build a circuit that turns on a speaker when headphones are unplugged (so it like how our phones detect when our headphones are connected). To do this, I was thinking of simply using ...
-1
votes
1answer
39 views

Bose QC 25 Headphone Cable Type

I am trying to repair my set of Bose QC25s and I need to buy more cable in order to do so. I am not sure which type I need specifically. The cable looks like this: It appears to have 4 conductors, 3 ...
1
vote
1answer
48 views

Using a Bluetooth receiver with 3.5mm jack headset [closed]

For the past 1/2 year I have been using a cordless Bluetooth headset (this one) connected with my motorcycle Garmin GPS device. While connected the device will not allow me to control the volume over ...
0
votes
1answer
34 views

Can I make my cellphone a 3.5mm jack bluetooth transceiver? [closed]

I want to hear sound from my TV using my Beats Solo3 wireless headphones the problem is that the TV doesn't have a bluetooth transmitter (or any wireless connectivity) it has USB and 3.5mm headphone ...
0
votes
1answer
49 views

Does this headphone jack-type component exist?

For a personal project, I'm looking for kind of equipment that acts like headphone jack and plug, where the plug can be easily pulled out after applying some force on the wire. However, the problem ...
0
votes
1answer
44 views

Changing microphone's jack to headphone's jack

I was trying to change my microphone's jack into my headphones with mic jack by cutting my microphone's wire and connect it to my headphone jack's wires. But these 4 color coded wires makes me ...
-4
votes
1answer
80 views

Are headphones with EMF measurement of 10,000 milligauss harmful to me?

I used a EMF detector app on my phone and measured the EMF output on my wired headphones. It measured around 10,000 milligauss on one part of both ear cups. Since wearing these headphones on my head ...
0
votes
2answers
124 views

Planned obsolescence / failure of consumer electronics / kill switch [closed]

General question for those who have worked in the consumer electronics industry: Are small rechargeable devices (like bluetooth audio devices specifically) designed to fail after a set time to force ...
4
votes
1answer
220 views

How do I appropriately power a headphone amplifier and where do I place the volume regulating potentiometers?

At the moment I am building a device that splits an analog stereo audio signal into 3 signals and amplifies 2 signals for headphones. I need to know how to supply -12VDC and where to put the volume ...
-3
votes
1answer
63 views

How can I connect these two wires? [closed]

I wanted to tinker with the microcontroller of the headphones so I cut the solder between these two wires, to stop the power supply. Now when I connect the black wire (power ground) lead to the ...
1
vote
3answers
58 views

Output impedance and loudness

I've a DAC for headphones (GeekOut 720) which has two output jacks with different impedances: 47 Ohm (with a large headphone icon next to it) and 0.47 Ohm (with a small headphone icon next to it). I'...
26
votes
4answers
9k views

I've become an electrical conductor for my headphones… but how?

So I have a pair of Bose noise-cancellation headphones that I plug into my keyboard every night to charge them (via my keyboard's USB port). My keyboard happens to be a metallic Apple keyboard. You ...
0
votes
1answer
74 views

Replacing a broken 3.5mm audio jack with a different one, why does each cable have different amount of wires?

I found a nice speaker system that seems to work except the 3.5mm audio jack is damaged (it's missing the tip of the conductor for left channel audio). I gathered some broken audio cables with 3.5mm ...
2
votes
3answers
427 views

How to wire headphone switch correctly in audio amp (LM4875) circuit?

I'm working on a circuit for a small audio device and I'm a bit confused about the headphone jack wiring, I hope someone can shed me some light. I'm using the LM4875 because I have a speaker and a ...
1
vote
1answer
94 views

Would an audio signal be degraded by adding a 0.45 ohm resistor?

I have a pair of expensive in-ear monitors (earbuds). Each side utilizes six balanced-armature drivers and a passive crossover. The right side is quieter than the left side. The headphone wires are ...
-3
votes
1answer
52 views

Regarding headphones [closed]

i have a headphone. it it having problem while listining to music. it is having wheel like structure to increase music. the wheel like structure is having problems. when i press it little or roll it ...
1
vote
1answer
252 views

Increase headphone impedance using resistors

I have an LG-V30 cellphone, which has an integrated headphone amp with two modes for audio reproduction depending on the headphones you plug in. Normal mode for headphones under 50 ohm, low output, ...
0
votes
0answers
38 views

How come sound is muffled in my headphones even though all pins have continuity

I was wondering why my headphones sound muffled until I put pressure on the cable even if all the contacts on one side have continuity with the contacts on the other side. Picture for clarification: ...
0
votes
0answers
48 views

How to switch off from headphone jack insertion

I am trying to control a boost converter - I want it on when headphone jack inserted and off otherwise. It is on when it's EN pin is >1V and off when EN pin<0.2V. I would also like to be able to ...
1
vote
1answer
102 views

What type of headphone connector is this? [closed]

I got a pair of Onkyo headphones as a gift a while ago, and now one of the connectors on the cable broke (the red one in the picture). What type of cable connector is this? Searching the Onkyo ...
0
votes
1answer
443 views

Bluetooth headphones pair to some unknown device. Can't pair to my source [closed]

Apparently, there's some BlueTooth source in the building with a policy of "pair to everything". I am NOT able to find that and snap its neck off! For the headphones: I use the "restart" procedure, ...
0
votes
2answers
67 views

How can I mechanically secure a headphone cable after soldering on a new connector?

My headphone (Sennheiser HD 265) has a socketed connection between cable and headphone. The headphone cable had come loose, so I bought a new connector and soldered the headphone cable to it. The ...
0
votes
1answer
70 views

Quieting headphone pop: Would it work to put a discharge resistor in a custom dongle?

When I leave my favorite headphones connected to my favorite smartphone or laptop when I'm not currently playing any audio, I periodically hear a small pop/click/crackle. I suspect it happens when ...
1
vote
2answers
875 views

PC Headset crosstalk

I had issues with crosstalk (microphone picking up headphones sounds) and thought it was caused by headset. So I removed headset's original cable, put 4 pole female 3.5mm jack on the headset and ...
-2
votes
1answer
297 views

Make audio jack detect headphone without actually putting headphones plug in

I am making a solution where I want to control headphone detection by PC externally as I have no control over the PC to do it through software. Below are my attempted solutions. My first try was to ...
-1
votes
3answers
92 views

How i can use the same audio jack for input line and headphone output

I have an audio circuit that can record and play audio (saw schematic). I have a DAC and a class D amplifier for playing audio through headphone but i wanted to try to use the same audio jack for ...
0
votes
0answers
223 views

Headphone amplifier with OPA2227

I found this schematics and I want to replace op amps with OPA2227. Can it be done? When having two channels, is 4.5VA transformer sufficient? Where can I place volume control? Thank you very much!
0
votes
1answer
68 views

Headphone Audio Noise

I built an audio mixer, and tested it with two different pairs of headphones. When I test it with one pair of headphones (I'll call Headphones #1), there is no noise (except for a few "pop" sounds ...
1
vote
1answer
447 views

Headphone amplifier for guitar with stereo MP3 input - mixing

I'm building a practice amplifier for my girlfriend who is learning to play the bass guitar. I'm a reasonably experienced electronics builder so building something to plug a guitar and headphones into ...
2
votes
1answer
87 views

Kids Bluetooth Headphone Volume Limit mod

I have purchased a set of NIA X2 Bluetooth headphones for my kid which are very convenient. However, my advice for lowering the volume is constantly bypassed, so I would like to mod them in order to ...
1
vote
1answer
98 views

How does headphone volume correspond to driver excursion?

I was curious about how driver excursion in a headphone corresponds to the volume that music is playing at. For this question, let's use my current headphone as an example. It's the Audio Technica ...
1
vote
2answers
484 views

sensitivity vs impedance of headphone

My understanding of the audio domain is very bad and I apologize for that. In a Wikipedia article, they say in the "History" section that "Those headphones used with early wireless radio had to be ...
1
vote
1answer
128 views

how to drive 1930s bakelite headphones

I’ve received a very old pair of mono bakelite headphones that I would like to re-use for demonstration purposes. Just for voice audio and morse code tones. The writings on the side of each headphone:...
5
votes
4answers
3k views

Why places capacitors in front of the line to a (headphone) audio speaker?

I'm using this module based on the popular bluetooth module CSR8635 https://www.tinyosshop.com/index.php?route=product/product&product_id=875 I was wondering why, in the right-hand side of the ...
-1
votes
1answer
95 views

Is it possible to bring wired headphones into bluetooth one?

Newbie question, but I can't find better place to ask... I have K. in-ear wired headphones which i love so much, but now their jack broke. I'm not in able to buy expensive wireless headphones, but ...
1
vote
0answers
149 views

3.5 male to IR Transmitter - Receiver [amplified] back to 3.5 female

Trying to recreate a DIY headphone with IR transmitter and receiver I already searched this is what I have found so far: 1.- http://www.instructables.com/id/DIY-Infrared-transmitter-for-iPhone-iPod/ [...
1
vote
1answer
79 views

Why do faulty headphones make MP3s sound low bitrate when I touch the wire? [closed]

I have a pair of headphones which came with my phone. They're the standard type that comes with a mobile phone - TRSS 3.5mm jack with an inline microphone. I was listening to Spotify on my phone. I ...
1
vote
1answer
97 views

Detect if bud earphones are in ear

I have bud earphones, through which I am listening to music. Air pressure in my ear (after inserting the earphones) is presumably slightly higher than the pressure of the surrounding air outside of my ...
0
votes
0answers
235 views

TRRS 3.5 mm Audio Plug (male) into a printed circuit board

Have a device I'd like to plug into a headphone jack of a cell phone. Wanted to start making some more professional prototypes; print my first circuit boards, etc. I'd like to be able to implement a ...
0
votes
1answer
119 views

Headphone Amplifier circuit problem

I have to design a headphone amplifier circuit. We are told the impedance of the headphones and the minimum voltage they require and also the voltage source. After researching I have found that the ...
0
votes
1answer
112 views

Driving a speaker without a DAC

I was reading about Audiotechnica's new "Pure Digital Drive" headphone drivers here, and I can't understand how their drive scheme would be better than having a regular DAC feeding into the voice coil....
1
vote
1answer
134 views

Why are there not more incompatibilities in 3.5mm audio jacks?

I use 3.5mm audio jacks for my boom box, laptop, android phone, iPhone, iPod Touch, portable personal analog FM radio (no external speakers), and my classical sound system on a shelf. I assumed that ...
0
votes
1answer
109 views

How should I connect a braided shield 2-core cable with a headphone plug with three cores

I'm a beginner in Electronics. The cable has two cores and a braided shield. What should I do about the ground?
45
votes
3answers
7k views

Loud pop noise while plugging to a headphones jack

I have a Panasonic RX-ES29 boombox with a type C plug (ungrounded). I sometimes hear a relatively loud snap/pop sound in the right speaker of my headphones while I completely plug them into the ...
0
votes
2answers
334 views

How to determine quality of headphone earbuds by spec sheet?

I have been doing some work with cheap headphone earbuds for quite a while now. I was wondering, when buying earbuds in bulk, if there was any way to tell what the sound quality would be before ...
1
vote
1answer
470 views

Connecting DAC to line out and headphones

I am designing a PCB with a stereo DAC UDA1334BTS and two stereo jacks -- one for "line out" and the second one for headphones. My original plan was to connect the DAC output both directly to the "...
0
votes
2answers
12k views

Headphones volume controls do not work after 4 pole jack repair

I have been repairing the jack for my pair of Sennheisers for Android (I have done 3 attempts so far) but I can't seem to make the volume controls work. To clarify, after the repair, the sound is ...
0
votes
4answers
444 views

Does the electrical impedance of a headphone depend more on the cable or on the headphone itself?

I'm currently considering buying a defect headphone with a built-in broken cable which would be quite expensive otherwise. I'm quite sure I'm able to solder a new cable onto the headphone to fix it. ...
0
votes
1answer
2k views

My headphones have 4 wires instead of just 3 [closed]

I cut into my headphone cable to repair the headphone plug and instead of the standard "3 wires" I read about all the time mine has four: 1 red (I assume right) 1 blue (I assume left) 1 white (???) 1 ...