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I am thinkink of taking apart this little piece with mic and two buttons on it and replace headphones with Sony fontopia. I really don't want to break anything. XDA DEVELOPERS! please, help!
why not just cut the wire right over the mic with buttons and put a female 3.5mm jack then you can plug in a normal headset there ?
Ok, I did. Now I can listen good quality music and not missing any calls. BTW, I love the way XDA2 handles calls, music stops when call comes in and continues right after done
does that on xda 1 too when you got ppc2003 on it
Can it be used in XDA I?
Rudegar said:
why not just cut the wire right over the mic with buttons and put a female 3.5mm jack then you can plug in a normal headset there ?
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Hey all. I'm trying to do this at the moment. I soldered a 3.5mm female extension lead to the headphone socket but i've got a problem. I only have sound coming out of the left headphone.
I know it's not the hima because i opened mine and resoldered the audio jack just to be sure. When using a 2.5mm>3.5mm converter, sound plays perfectly, but when i'm using my modded handsfree kit, i only have sound on the left.
Can someone post some pics on how to properly solder a 3.5mm female extension lead to the handsfree kit mic portion?
Take a look at this
http://forum.xda-developers.com/viewtopic.php?t=14505&highlight=
Hanmin, I love you.
On another note, i found this wiki page in the above mentioned thread that details this procedure. I rewrote it for readability (and NxJay-ness) but it's pretty darn useful.
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
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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.
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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
So I got my car dock, I knew it didn't come with a line out, but figured I could add one. You all know how aewsome it would be to have a line out jack on this thing rather than the stock "speakers". Well good news, I am going to make myself a line out and will post pictures about how I am doing it.
I have the thing taken apart right now, and just need to go buy a 3.5mm audio jack.
So, my plan will be to still use the cardock for phone and stereo profiles, just using my car stereo's aux in rather than the dock's weak speakers. I'll leave the microphones on the dock intact, just not the speakers. The good news is the speakers are removable, making room for a 3.5mm audio jack. the bad news? the jack will have to be on the dock body, not base. I'm sure if you try hard enough, one of yoiu will find a place in the base for a jack, but for now, I'm going to add one to the body, on the bottom (in portrait mode).
There you have it, I'll be able to make the dock a semi-permanent fixture in my car and never have to plug in an audio cable to get my music through my car speakers.
Pictures to follow soon, I just couldn't wait to start this project, and get some reactions / moral support.
Someone else looked at doing the same thing a while back. I seem to recall they came up against several hurdles. It is not as clear cut as it seems.
On the face of it- it would seem the approach you are taking will necessitate you having your car stereo ON and AUX selected any time you need to take a phone call. Might be a bit of a pain when you are for example, listening to the car radio and your phone rings. Or if the phone rings and your stereo happens to be turned off.
I find the inbuilt speakers totally adequate for Phone Audio. This arrangement has the benefit it being standalone and means N1 Phone Audio works regardless of current car stereo state. I send the Media Audio to my car stereo via BT though, as it sure benefits from the better speakers quality and auto pauses the Media when the phone is in use.
Good luck with it and do a search for the other thread as there is some good info info in there.
PS take a look through this thread http://forum.xda-developers.com/showthread.php?p=6427057&postcount=39
Might save you some heart ache
I only found that thread, after i had my dock quite disassembled and did a google search for the chipset under the RF shield. :/
I don't use my car's head unit for anything but aux audio, radio is dead to me, so I shouldn't have any problems. The hurdle is the audio being fed to the speakers do NOT share a common ground. They utilize an active-balanced system. both leads are hot, common to themselves.
Now it seems as I will have to choose which channel gets full audio and just bum 'common' from the dominant channel. or i come up with some way to convert two independent balanced audio feeds to a common ground.
I have had no luck looking up the NF2301 daughter board. I was hoping to find a schematic detailing the line level outputs, but no go. I did think it was interesting that the car dock and desktop dock share the same PCB, too bad there is no detailed schematic yet...
FAILURE - giving up
So, after creatively placing some resistors and whatnot, I got a decent line level with common ground, that won't blow up the built-in amp. However, as pointed out in that other thread, there is some BS DSP that notches the lower frequencies out of the signal to the speakers. I got it all setup in my car, plugged in to my aux-out, and it sounded like i was using the voice profile. I took the aux cable and plugged into my headphone jack on the phone, and all the bass came through just fine.
So, for now? The audio out on the car dock is meant for the crappy on-board speakers. not real ones. Sad...
Now, it seems the only way to get an aux out of the cardock would be to swap the board with a desktop dock, and cut a hole for the aux jack, or just do some more soldering to not modify the casing of the cardock.
Too bad, I had it working, but the damn DSP chip/amp puts out ****ty audio quality
Alternatively, at the point you have a desktop dock.... Instead of butchering it for the board, Just install it somewhere out of site in your car and connect it to your cars Aux-in with a 3.5mm lead. Thats what I have done. Works well. Only downside is I still have to manually connect the desktop. It does not autoconnect to deskdock when N1 is placed in cardock obviously.
Too bad your set up did not work for now.
kajer said:
So, after creatively placing some resistors and whatnot, I got a decent line level with common ground, that won't blow up the built-in amp. However, as pointed out in that other thread, there is some BS DSP that notches the lower frequencies out of the signal to the speakers. I got it all setup in my car, plugged in to my aux-out, and it sounded like i was using the voice profile. I took the aux cable and plugged into my headphone jack on the phone, and all the bass came through just fine.
So, for now? The audio out on the car dock is meant for the crappy on-board speakers. not real ones. Sad...
Now, it seems the only way to get an aux out of the cardock would be to swap the board with a desktop dock, and cut a hole for the aux jack, or just do some more soldering to not modify the casing of the cardock.
Too bad, I had it working, but the damn DSP chip/amp puts out ****ty audio quality
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Click to collapse
Maybe it's using a low bitrate A2DP bluetooth transfer. Either way, bluetooth will be lower quality than a direct plug.
khaytsus said:
Either way, bluetooth will be lower quality than a direct plug.
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Click to collapse
I believe this is the likely reason why Google didn't include an audio out port on the dock. Yes, it's on the desktop dock, but that's really all the desktop dock handles, whereas the car dock has a mic as well, etc.
I would be interested in detailed disassembly instructions if you wouldn't mind.
wonkotron said:
I would be interested in detailed disassembly instructions if you wouldn't mind.
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Click to collapse
detail isn't really necessary, it's pretty straightforward.
-get a knife and use it to peel off the black rectangular sticker on the front of the dock. it's right where the battery on the phone is when it's docked.
-undo the 4 screws behind the sticker
-pop the two halves of the phone-holder part of the dock apart. if you can't get them apart with a bit of pulling get your thumb nail or a knife in between the two halves.
that's about as far as you need to go to get to the useful bits.
jamezracer said:
Stuff
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Thanks! I'll see if I can figure anything out.
I had this same idea when I first got my car dock, but I couldn't convince myself to hack my new dock. Instead I hacked an old stereo Bluetooth headset with the same mod and it works perfectly.
Don't ignore this post...
Ok So I took a dive in to it. I disassembled my dock (yes even after reading all that I could find on the internet, including this thread), but in disbelief I wanted to find out for my self. I soldered a head phone jack to the speaker wires, and thought I had something good when connected to my computer speakers. (it worked and I was surprised). But after hooking it all up in the car and actually hearing the quality, I was sorrily disappointed.
Major failure, the sound is terrible. Not tolerable at all. Comparable to scratching fingernails across a chalk board and trying to listen to some good tunes at the same time from an FM radio with very poor reception.
Heed my warning, do not attempt to mod the dock for an FM out, it will not work.
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
Im asking all you guys to help me find best methods, settings, and tweaks to get the best possible audio recordings on my SGS4G. Im asking this not only from the devs here but from all the audiophiles as well.
The reason im starting this thread is that my partners iphone 4 just with the built in mic and camera has produced video and audio recordings 10x better then what this phone has. With great dynamic quality and no distortion or anything. I need broadcast quality recordings for this project to succeed. If i am not able to do so im either going to have to try to clone the SIM card and get a used iphone 3GS just for field work, or give up this phone and switch to an iphone 4. Either of which i really dont want to do. If part of the solution is to dump GB and go back to Froyo, then so be it.
Heres what i got:
1. Highly modded SGS4G with Valhalla 1.3.2, Launcher Pro Plus
2. 32GB class 4 Sandisk card
3. UV using the settings in the ICBINB therad (i tried some lower ones dsexton posted, but they made the phone very unstable)
4. Voodoo Plus sound app
5. i-Microphone (sound was horrible, more on this later) http://www.amazon.com/o/ASIN/B004XC6KHS/ref=nosim/betteraddons-20
6. Sennheiser E835 with XLR to 3.5 mono minijack adapter
7. Rec Forge and Hi-Q MP3 recorder (trying both, if you know of any with more features please share)
First off, im concerned that the custom ROM, kernal, and UV settings may be affecting quality. Any input on this would be appreciated. Ive tried OC, but 1.2ghz was never stable and 1.3ghz drained the battery too much.
I first off was looking for a good solution for face to face interviews, i found the i-mic (link above) to have good reviews, but when i bought it and tried it out, the recordings were horrible! Like someone was rubbing their fingers over the mic when talking. I tried gain adjustments in Voodoo and the recording apps im trying out, but nothing helped.
I plugged in my new Sennheiser using a XLR to RCA cable, with a RCA to mini jack adapter. The sound is A LOT better, but still there is a humming over the recordings, and they just do not have the dynamic quality that im hearing with the iphone recordings.
Are there any equalizer and sound processing apps for commercial or professional audio work out there?
Im at a wall here, any help to these issues would be greatly appreciated. Thanks in advance.
It's hard to tell exactly without seeing your set-up but it sounds like you have the following issue.
The XLR is a balanced connector. When you go to an RCA you are dropping down to an unbalanced connector and losing your ground. That is where the hum would stem from.
To eliminate the hum you would need a cable that converts directly from your balanced XLR to a balanced T/R/S (Tip, Ring Sleeve) mini jack. This mini jack has 3 separate contact points, separated by two plastic bands on the plug instead of one.
Ideally for broadcast quality you would need to run your Sennheiser E835 into some sort of mixer with a mic preamp. Then run the line level out from the mixer to the SGS4G. Your recordings would be crystal clear at this point.
I don't believe your issue is with the SGS4G hardware. I use the camcorder with the built in mic all the time and the audio quality is fine.
Hope this helps.
you don't need a balanced connection unless you are talking about long mic cables like over 5 feet long and equipment that is plugged into AC current. Balanced connections are for getting rid of the 60 cycle AC hum, basically.
If I was trying to record using a 4g I would think about using the usb input and some kind of analog to digital converter box. Here is a cheap one -- $25 behringer UCA 202 providing 2 RCA inputs-- it's about the size of a phone. and supposed to work on linux without drivers so maybe it will work on android. I have three of them and use them for laptops. They're pretty good at eliminating noise. I just don't know if the phone has enough power to operate the unit. You need a female to female standard usb adapter to connect the data cable to the converter and something to adapt a (short) mic cable to an RCA port. if it works you can use a dynamic mic like a AKG or Shure or some smaller dynamic mic and will get better recordings than anything built into any phone. It will be a little bit bulky but you'll still be able to fit the whole thing in your pocket. I should try it with my phone and see if it works but I need to get the female to female adapter. if the phone recognizes the UCA202 it should work just fine with a Sennheiser E835. My girlfriend uses a Sennheiser MD-431 for recording songs with her laptop and one of those units.
They also have usb mic adapters at places like guitar center. If you have the female to female USB connector you can take your 4g to guitar center or wherever and try their mics out before you buy anything.
@Nazcalito....great advice, I guess spending all my time on a control room board I hear the word 'hum' and immediately think 'where's the dirty gear, who's missing a direct box.' Haven't used a cable under 10ft in as many years. I'd be very interested to know if someone could get the USB audio/phone rig cooking on or s4g, that would be sweet.
Sent from my SGH-T959V
Thanks for all the responses, ive been playing around with this and i do think the hardware is the biggest issue. I noticed the issue im having is that the built in mic is not turning off when using an external one. When using the external mic, i can tap over the back mic and get the feedback from it as well as the audio from the external mic.
Now the built in 3.5mm jack is a four contact TRRS plug, the RCA to minijack adapter is only two contacts. This would explain why the little plug in mic was getting all the feedback. Though even that mini i-mic was a TRRS plug like the headset thats included with the SGS4G. Why is the built in mic not turning off?
Nazcalito, your suggestion of the USB audio interface may work, i did consider a microphone with a USB connection, though i could not find any accounts of this working by simply plugging the mic in to the phone with a USB to microUSB adapter, and didnt want to take the chance. Though i like the converter box you showed a pic of, i could just velcro it to the back of the phone to make a mobile unit. I'll probably buy one if youre able to confirm it works. Again would i have the same issue with the internal mic not turning off when using this?
One thing i ordered was something called the headset buddy, its a TRRS male plug that splits into two separate minijacks for headphone and microphone. Im hoping this will solve the problem.
http://www.amazon.com/o/ASIN/B002SK66OY/ref=nosim/betteraddons-20
Another concern is the pinout of the SGS4G. Ive found diagrams for the i9000 that shows the mic and ground contacts swapped, and others with the regular mic as the last pin that claim they are for the Galaxy S2 and SGS4G. Anyone can confirm? This might explain the internal mic staying on.
http://pinoutsguide.com/CellularPhones-P-W/samsung_galaxy_headset_pinout.shtml
http://pinoutsguide.com/HeadsetsHeadphones/samsung_i9100_headset_pinout.shtml
As well should i have all the options in Voodoo turned on for this?
Ya know, i wish i didnt order the headset buddy already, i would have tried this:
http://www.kvconnection.com/product-p/km-droid-x43.htm
Caligula36 said:
Ya know, i wish i didnt order the headset buddy already, i would have tried this:
http://www.kvconnection.com/product-p/km-droid-x43.htm
Click to expand...
Click to collapse
That looks like a very handy piece of gear.
Bump
Sent from my SGH-T959V using XDA App
The adapter did not help, the internal mic is still staying on.
That's not good. I have a similar problem occasionally with headphones not muting the speaker when used...I have to wiggle the plug a little until it mutes. The contacts are definitely a little touchy.
Sent from my SGH-T959V
Can anyone with a stock froyo SGS4G try plugging in an external mic and see if that solves it?