Eliminate sound crackling from low impedance headphones - Galaxy S 4 Accessories

After hearing crackling noises from low impedance headphones,
( see THIS THREAD for more discussion of this problem)
I found a guy on eBay who made me a custom 15 ohm adapter. It works to eliminate the audio problems!
3.5mm TRRS -> 3.5mm TRRS 15 Ohm adapter
I also asked him to make me one for the Plantronics 2.5mm Headset that I have used in my car for the past several years, which gave much buzzing on my new S4. This solved the problem, as does that adapter above, if you just plug in your existing 3.5->2.5 headset adapter.
3.5mm TRRS -> 2.5mm headset 15 Ohm adapter
The nice thing about these two adapters is that they are narrow plugs, meaning that they work easily with cases.
Hope this helps. It has solved the audio crackling problems for me.

Nice. I haven't had this problem yet but I have read about the issue. Glad to see a fix should the problem arise for me.

Apparently, this audio crackling has been solved by the .BMEA update from Samsung on the i9505. Other S4 versions have not yet received this update, and when they do, those of us with the i337 and locked bootloader, won't be updating until we're sure that this update doesn't break the ability to unlock the bootloader. So, we'll probably be needing this solution a little longer for the i337.

Related

2.5mm to 3.5mm stereo conundrum

Ok....I've fought with finding an adapter to go from 2.5mm to 3.5mm for ages now. Everything I've read indicates it needs to be 4 pole etc etc....I'm aware of that. However, every one I've tried is still producing mono output. For kicks, I've tried the following ALL with mono results:
-Blackberry Pearl stereo headset
-RadioShack catalog #274-004 3/32" to 1/8" Stereo Headset adapter (why wouldn't this work?)
-Just Wireless 08351 Stereo Adapter 2.5mm to 3.5mm from (Target/BestBuy)
-BodyGlove Stereo Sport Headset 7489401 (BestBuy)
Now, when I say these produce mono output, what I'm really saying is that there is only one channel of audio whatsoever...the other earpiece is totally silent.
Anyone had any luck finding something at a retailer without ordering online? I'll order if I have too though. Thanks.
Derek
here ya go:
http://cgi.ebay.com/FOR-Cell-Phone-...6158173QQihZ017QQcategoryZ20354QQcmdZViewItem
remeber google is your friend!
(btw, this is a 4 pole connector, the reason why all they othere ones youve tried doesnt work is cause they were three poled and the contacts dont match up)
The specs on this RadioShack adapter is specifically 4 pole....I checked that first. In fact, the packaging description reads:
"Turns a 3/32" 4-pole wireless phone headset jack into a 1/8" stereo headphone jack"
Check this link and you'll see what I'm talking about: http://www.radioshack.com/product/index.jsp?productId=2603246&cp
I knew it needed to be 4 pole, and that's what I'm saying...every supposed 4 pole adapter I've tried hasn't worked.
Any other ideas?
NOTE: Also note I said I tried the Blackberry Pearl headset, which is also a 4 pole headset jack on taht phone so theoretically that headset should have worked perfectly.
i used to work at radioshack and i can tell you they dont carry any adapters that work with smartphones, i cant tell how many customers came in looking for the same thing.. the adapter on ebay works its just like the one i have
The problem is simple. Look at the base of the 2.5mm jack on the headphones that came with your phone, then look at the base of the 2.5mm jack on the adapter. You will notice that the base of the adapter is way bigger than those on the headphones and this prevents you from pushing the adaptor as far in the hole as it needs to be.
Stupid idiots at The Source were trying to tell me that it wouldn't work because of voltage...
Anyways, when buying an adapter, just make sure that the base of the 2.5mm is small enough so that it'll fit into the recessed 2.5mm in your phone. It is okay if it's just the three pin plug, it will still be in stereo.

TRRS Pinouts for Desire-like proper headphones without issues of direct plugging in

Sup all would anyone have the actual TRRS pinouts for the audio jack for the desire I would like to make a up a lead that will allow me to plug an ordinary pair of headphones in using a proper TRRS jack instead of a TRS jack. thanks. There are definately issues plugging in a headphone directly or maybe it is my unit faulty?
Edited, this topic will show you the best way to connect your headphones to your desire as some people will experiance problems with pluggin in normal 3.5 jack plug headphones, this is due to the desire using a trrs socket for the microphone instead of a trs socket that normal headphones use.
pretty sure it is:
tip - left audio
ring 1 (closest to tip) - right audio
ring 2 - data of some kind
shield - ground
Hope this helps
cheers for that, im having some peeps tell me that i can just plug in an ordinary pair of headphones into the phone without any ill effects, i am concerned that i will have a problem because headphones are trs jacks and the desire has the trrs 3.5 jack. can anyone confirm any details on this for me please
nah you can use a normal TRS 3.5mm jack with no problems. I guess that when you use a normal TRS jack then shield and ring 2 on the connector are both connected to shield on the jack so it adjusts the software accordingly. But yea, no problems.
cheers for that
edited, we have since discovered that this is not the case, please read the entire topic for the correct way to connect headphones to the desire.
standard 3,5 mm (TRS) headphones DO CAUSE ISSUES
Was about to resend my HTC Desire, because it randomly called, skipped music stopped the music, FM-radio freeze etc. from the moment I connected my high-end 3,5mm headphone (TRS type: 3 contacts).
No issues with the standard headset delivered with the HTC Desire (TRRS type: 3,5mm 4 contacts).
So, you might need a TRS -> TRRS adapter.
Anyone with other experiences???
Basically what I have found is that many of the normal headphones are not working correctly because it is a trrs socket that is used. To me this would mean that normal headphones shouldnt be used, I have tried various headphones but there are definately issues with them,
The main issue I was having was as you have said above and also the base wasnt right with them
I have since bought this
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=130384433476&ssPageName=STRK:MEWNX:IT
which arrive today and when I am using this in conjunction with my headphones I now have the proper base to the set and NONE of the problems I was having when i was plugging them into the phone directly......... they just didnt sound right, now using griffin smarttalk this i can definately tell the difference now especially in the base, also this unit will lower the volume and allow you to make a call automatically with built in mike, clicking it twice doesnt skip the track suggested instead it will ring the last number dialled in the phone so a bonus actually to me
the straight adapters ie trrs to trs are very nearly the same price as this if not more expensive so i would recommend this all day long to you. At £9.75 delivered bargain m8, bought late evening on the 20th arrived this morning what more can i say, but if you are having issues it is definately in my eyes because of the difference in the trrs socket to the trs socket,
the base is fantastic on this phone now, before it was terrible, now i just need an equaliser to remove some of it
When you speak of "normal headphones", are you referring to simple 3.5 TRS headphones, or headphones with a mic ?
Cause if the majority of the headphones (without mic I mean) won't properly work with the Desire, it's a major flaw according to me.
I confirm: TRS (3 contacts, without mic) do not work...
...I tried 4 different 3,5mm stereo headsets (TRS type, 3 pole, without mic). NONE of them worked correctly (phenomenons as described above).
When you plug a 3 pole TRS headphone in the Desire 4 pole TRRS headphone output, a short circuit is generated between the first 2 internal contacts (seen from connector input: ground + control line).
I suspect that the Desire firmware cannot detect/handle this situation, and so it causes random actions (prev, next, call numbers, stop, play, ....)
I suspect that this issue could be solved with a firmware upgrade....
there is no way they would release hardware with a 3.5mm socket that you cant plug a 3.5mm jack into right? the firmware does detect when you use a TRS instead of a TRRS. You get a different icon on your notification bar for each of them. As ive said before my AKG's have worked perfectly so far and have shown none of the problems listed above.
This afternoon I quickly tested my Seinheiser PX100 headphones with a friend's desire and the Htc music player.
It worked flawlessly. Volume was good and it didn't play/pause/skipped tracks.
As I said it was a really quick test so I can't say for sure that everything's was okay.
Nonetheless apparently a lot of people experienced problems with numerous headphones. To me it's really a shame you can't even plug ANY 3.5mm jack headphones with the desire ...
I hope a software update could fix this.
I also had this problem when connecting my Desire to my car radio using an standard 3.5mm AUX cable. Will this cable solve my problem or will my car radio not be able to recognize a 4 pole cable?
http://cgi.ebay.nl/3-5mm-Male-TRRS-...erAccess_RL&hash=item5d28c530c1#ht_1252wt_939
I think this might be an issue of certain cables not making a full connection due to the shape of the case surrounding the socket. I had no problems with my headphones, sound was good and loud enough although I could see how it might not be loud enough for some.
I did start having issues when I plugged the aux lead in my car into the phone. The lead has a large shroud that obstructed the plug from being plugged all the way in. This gave the same problems as described in other posts, skipping tracks and also crashing the music software at one point.
I replaced the lead with another that had a better fit and the problems went away but I did notice when I leaned against the lead while it was playing music in my car it started skipping track again.
I wonder what HTC have to say about this....
DHel01 said:
I also had this problem when connecting my Desire to my car radio using an standard 3.5mm AUX cable. Will this cable solve my problem or will my car radio not be able to recognize a 4 pole cable?
http://cgi.ebay.nl/3-5mm-Male-TRRS-...erAccess_RL&hash=item5d28c530c1#ht_1252wt_939
Click to expand...
Click to collapse
I solved those problems with this lead- i dont think the one your showing will work for you
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220593400305
they come from china etc however only 5 days to arrive from ordering.
and I now enjoy trouble free music. I also have ordered the Griffin Smart Talk so i can listen to my headphones and be able to answer the phone as well however I didnt want to use it for plugging into a car stereo etc etc so i wanted a straight lead conversion.
Just a quick warning the first lead i ordered from this person was faulty, however i had also ordered 3 other leads from the same person as an after thought which were all perfect.. as they are only pennies it is worth ordering one or two spare for redundancy purposes. I decided to order 3 as backups more in case i broke one and the person stopped selling them etc etc
These leads will allow you to connect the htc to any other source including external speakers which didnt work when putting them in normally but did work when i used this cable in conjunction with it.
this cable is a trrs to trs jack plug and is used to convert a 4 pin socket to a 3 pin socket jack plug.
I've been using a pair of JVC Gummy Air on my Desire since I got it, not a single problem.
Re: TRRS Pinouts for Desire
I've used some headphones, and 2 different aux connector for the cars and all 3 work absolutely perfectly. No issues at all.
Sent from my HTC Desire
I have been using my Yuin PK3 earbuds for music since I got my Desire and it has been working without any problems.
TheOriginalKi said:
I've been using a pair of JVC Gummy Air on my Desire since I got it, not a single problem.
Click to expand...
Click to collapse
Oh yeah and I've also hooked it into the tv via a standard audio cable!
Not sure what you guys are talking about but my AIAIAI headset works fine with the Desire
Mic working too!
aiaiai.dk/headsets/tracks-headsets/tracks-headset-black.html
^those
Sennheiser PXC 250 with NR, no problems

External microphone for 3.5mm audiojack.

Hey!
Anyone knows if it's possible to connect a external microphone in the 3.5mm jack. Would be nice to be able to plug in a better microphone when recording music shows etc. Shouldnt it be possible since you can speak through the htc-headset?
I don't think that you can plug a mic in it, this jack is "way-out" only, not "in"...
At least i never tried, but i guess it's how it works (if anyone can confirm this or prove me wrong ).
It's a 4 pin 3.5mm TRRS connector. It has a mic connector built in as well as the audio and ground.
I don't know if you can get a microphone with that specific connector, look it up and see... but it would be pretty easy to make your own connector if you cannibalise a headset or something like that and then connect whatever mic you wanted to that.
Not sure about the quality, but dealextreme sku.20714 seems like to fit your description.
I bought one of these some time ago to connect my Klipsch headphones.
http://cgi.ebay.co.uk/3-5mm-Headpho...GS-/280544944694?pt=UK_Mobiles_Accessories_RL
It is still recognised as a headset even when there are no headphones plugged into it.
So the quality for what you want is probably poor BUT it does prove that it can be done.
Perhaps one of these PLUS a good quality mic PLUS a soldering iron is the answer

Headset problem solved

After trying numerous ROMs to get my low impedance headset to work, I finally found a hardware solution. By using this adapter,
http://www.ebay.com/itm/15ohm-added...P3_Player_Cables_Adapters&hash=item3f263c4ed1
I am using the adapter with a mono headset + mic that has 3 bands on the 2.5mm connector. There is another adapter for 3.5mm headphones.
I was able to raise the impedance of my headset and get rid of the distortion. There are many posts about this issue on XDA and not much discussion about it with the Vz S4.
thanks
Great. thanks so much

Is your Audio jack stable? (Does your headphone cables pop out or stay in?)

I read a review where the reviewer said the cable would not fit well in the audio jack and so it would sometimes disconnect.
Anything you owners have noticed?
Fits perfectly on mine,
I've tried many headphones and earphones and they all seem to fit fine.
For some reason specifically the microphone on Samsung AKG earphones doesn't seem to work (Tried a few different ones)

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