FM transmitter? - myTouch 4G Q&A, Help & Troubleshooting

Just wondering if anyone has figured out how to make our phone a FM transmitter. So we could play out music through our car stereos without Bluetooth.
Sent from my HTC Glacier using XDA App

Had this been possible to do on any phone that didn't have this feature built in?

Not sure its possible.
I know they've been trying to do the same thing for ages on the N1, without much success. However, can't really be certain as I don't know much about the FM chip they used on the MT4G.
Also, seeing as the antenna for the FM is built onto the headphones, they'd probably be needed for transmitting FM as well as receiving.
Your best bet would probably be to get on of those FM transmitters that hook into your headphone jack and transmit them that way. I'll warn you though, the cheaper ones generally tend to sound HORRIBLE, and even the expensive ones are hit and miss.

I was just wondering if it was evebln possible. True that you need headphones in order to use the FM app.
Sent from my HTC Glacier using XDA App

Related

Hidden features in nexus one?

I got my nexus one exactly 1 week ago, and this device is amazing! I unlocked it and installed the cyanogen mod the day after i got it, and Iam really impressed of the results all you developers out there making theese custom roms happen.
I'have read on the internet that nexus one hardware has a fm recciver and transmitter + N wireless capable chip.
And its not even mentioned in the phone's spec list(i've hard it was at lauch, but was removed short time after), is this because there is currently no software support that they wont advertise the features?
Or is this just hardware which is on the phones chip because its just how they make them, and the features arent nesseseary availble to the phone.
Any ideas? or status on this?
Sorry my english is not very good + Iam a newbie =)
Al3k said:
I'have read on the internet that nexus one hardware has a fm recciver and transmitter + N wireless capable chip.
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802.11n works with the stock ROM, but it's only at 2.4 GHz (the phone doesn't appear to include the necessary antenna and RF components to work with the 5 GHz band). It's also only single-stream N, so you won't get link speeds higher than 65 Mbit. Maybe they didn't advertise it because it's only marginally faster than 802.11g, and generally the phone can't even saturate a G connection. In theory, you may get slightly better range with N and perhaps slightly worse battery life. I don't really know why they removed it from the specs shortly after launch.
Al3k said:
Or is this just hardware which is on the phones chip because its just how they make them, and the features arent nesseseary availble to the phone.
Any ideas? or status on this?
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Probably both. Some minimal extra hardware or connections may or may not be necessary to fully use the FM radio functions. But a Google employee (Swetland) stated that the main reason it wasn't included was because they didn't have time to do the software integration, and it wasn't a priority.
Thanx I would love to have a inbuild fm transmitter, that is just sick, I dont think any other cell phone have this working. We just need be patient and hope for best I guess
Al3k said:
Thanx I would love to have a inbuild fm transmitter, that is just sick, I dont think any other cell phone have this working. We just need be patient and hope for best I guess
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there are many many cell phones that have FM receiver and transmitter. the nokia n97 has both an FM radio, and also you can turn on the FM transmitter to play your music thru your car's stereo by tuning into a frequency, and your phone will broadcast to that frequency. actually the nexus one is missing this function when a lot of other phones have it! mainly high end nokia phones.
Don't count on the Nexus ever getting FM transmission capability. It does not have the FTC's stamp of approval for such a feature. FM receiving may be possible some day, but that's up to Google to write the necessary drivers and programs for it.
Or if it is possible maybe Macodo can port it from the desire rom like he did the camera. I'm just saying maybe..
-Charlie
The FTC denying the FM Trans was a joke..... The feds are so paranoid with cell phones and cars I find it hard to believe they will be approving many more FM Trans in cell phones..... Receiver....well, I search this forum everyday waiting to see the post with the "Flashable .zip to enable FM Radio!"
/me is willing to say we'll have FM Radio *SOON*
FM radio is great, i guess it use less battery power than internet radio over 3g.
I do have a FM transmitter in my car but the quality is kind of ****ty, the car i use at work dosent have any input or aux plug to the stereo.
Since we're on it, what do you guys think the future will bring the nexus one? or wish list?
Al3k said:
FM radio is great, i guess it use less battery power than internet radio over 3g.
I do have a FM transmitter in my car but the quality is kind of ****ty, the car i use at work dosent have any input or aux plug to the stereo.
Since we're on it, what do you guys think the future will bring the nexus one? or wish list?
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http://forum.xda-developers.com/showthread.php?t=668003
GldRush98 said:
Don't count on the Nexus ever getting FM transmission capability. It does not have the FTC's stamp of approval for such a feature. FM receiving may be possible some day, but that's up to Google to write the necessary drivers and programs for it.
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It may never come "officialy" for the nexus, but if they're working the aosp code future phones, then it's just a matter of devs flipping a switch instead of having to write code from the bottom up.
Nah, you don't, they say that to get the best reception, but you can do with out. Look up N900's fm capabilities to transmit/receive, you can do it without a plugged in antenna/headphones.
Just as aside for people wanting FM transmission with the Nexus One - a FM transmitter with a 3.5mm jack only costs around $5 (Australian Dollars) from ebay, and you can pick them up in stores for about the same price. Obviously not as convenient as having it built in and not having to take an extra accessory around - but I would assume you wouldn't want to use it in too many places anyway. Say the car, maybe a stereo at home and thats mainly it?
i don't need a transmitter as much as a receiver.

FM radio - can't get it to work

what is up with the FM radio app? i can't get any stations to come in at all its all static. what am i doing wrong? doesn't make any sense that its not working
knives of ice said:
what is up with the FM radio app? i can't get any stations to come in at all its all static. what am i doing wrong? doesn't make any sense that its not working
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Check to see that your headphones are securely plugged in (they're your antenna). Are you indoors or outdoors?
redct said:
Check to see that your headphones are securely plugged in (they're your antenna). Are you indoors or outdoors?
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indoors but i live within 20 miles of where the stations are broadcasing. i have them securely plugged in and all i get is static
I tried for a while also to get FM. Finally with a 4th set of headphones i was able to tune in a few stations manually. The scan still doesn't find anything. I stretch the cord out to get best reception and try not holding the EVO - yeah I got better reception on some stations if I had EVO and the headphones stretched out on a table. Color me disappointed in the FM as any cheap walkman seems to work better, though I didn't really expect to use it much anyway.
The idea to use the headphone's wires makes me wonder if old cheap headphones would work better (I'm curious if the newer headphone wires are shielded better and if that would make it harder to pick up signal)
thecodemonk said:
The idea to use the headphone's wires makes me wonder if old cheap headphones would work better (I'm curious if the newer headphone wires are shielded better and if that would make it harder to pick up signal)
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Works perfect for me.....using ghetto 2 dollar headphones.
worked with my iPhone headphones in best buy
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Sent via the XDA Tapatalk App
also, make sure you push the headphones ALL the way in, like post 2 says. mine seem like they stick about 3mm before they're actually all the way installed. if you can see jack still, they're not all the way in.
Is there a way to hack into the application to make the fm radio work without headphones? :d
Mine worked very well with average headphones. Radio stations came in very clear.
timothydonohue said:
also, make sure you push the headphones ALL the way in, like post 2 says.
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*snicker* thats what she said. sorry i couldn't resist. my FM radio works great. i wasn't even aware this was a feature. what a pleasant surprise!
thecodemonk said:
The idea to use the headphone's wires makes me wonder if old cheap headphones would work better (I'm curious if the newer headphone wires are shielded better and if that would make it harder to pick up signal)
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The shield is what is being used as the antenna.
mine works perfectly good reception with some cheap headphones but after like 30 mins of use it randomly starts scaning again for stations without being able to stop it, just keeps jumping from station to station every 2 seconds until i power off the app, if i turn it back on again it continues on scaning mode until i reboot the phone
anyone else with this problem or know how to fix it
does anybody have the stock fm app for evo my custom rom didnt come with it
fparkin said:
does anybody have the stock fm app for evo my custom rom didnt come with it
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See attached.
SilverStone641 said:
*snicker* thats what she said. sorry i couldn't resist. my FM radio works great. i wasn't even aware this was a feature. what a pleasant surprise!
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Lul +1. 10 char
Sent from my PC36100 using XDA Premium App
Jedis said:
See attached.
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did not work on evo with vin rom ginger bread

Poor FM radio

I have big problems with FM radio in my HD2. Reception is very poor. I can barely found any station and even this one is very silent with lot of noise.
I have tried changing it from stereo to mono in settings, which is supposed to improve signal. But that does absolutely nothing on HD2, everything stays the same.
Is that common issue? What can i do to improve signal?
My specifications are in signature.
Unfortunately the receiver in the HD2 is not the greatest.
I think the dc-dc convertor for the screen is also causing alot of HF noise.
Try to turn off the screen if you can set it to a freq where you normally receive a station and you should have less noise.
I use the radio all day and yes, its common. The hd2 has just about the worst radio I've ever used and that includes cheap (really really cheap) pound shop radios. It's abysmal, and someone at HTC is either laughing at us or was quietly sacked. No way could it accidentally be so rubbish.
Its made worse in android because for some arcane reason Bluetooth must be on AND mono doesn't work.
One tiny thing that sometimes helps is switching to a different preset and back again. Seems to lessen the Bluetooth interference, and using 2g only seems to help a hint too.
For all thati love my hd2, and I really really do, I hate the pathetic excuse for a radio.
I would also agree that the FM Radio app isn't great at all. If you have WiFi access or a data plan, I would use the Tune In Radio app found on the Market to get your local radio station crystal clear and in stereo!
The FM radio is really poor as known yeah but has anybody ever thought that it may be their headphones (as that is the satelite AFAIK). The current earphones I'm using are great on my HD2 and I'm getting no noise at all using Typhoon's latest CM7 ROM. I've had lots of problems with other headphones, but none with these new ones. Just my share.
I was using HTC headphones, cheap noname headphones and now philips headphones. Noise is the same on all headphones.
matejdro said:
I was using HTC headphones, cheap noname headphones and now philips headphones. Noise is the same on all headphones.
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Did you try with the screen off?
I agree having the screen on produces a lot of noise. Does anyone else find sense roms are better (less noisy signals) than non-sense android roms.
Sent from my HTC HD2 using XDA App
Yup I find that too. It depends on the dev though, I've found AndrewF's Desire HD ROM works the best. I don't know if it's still being continued or not though as that was a month+ ago.
Guys I also want to know how to make FM radio work as the one given in the below ROM works but the reception is not good at all also for no reson it enable bluetooth when I turn on radio and if i try to disable the bluetooth it turn off the FM radio. So can anyone tell me how to get FM radio work on the ROM im using.
This is the best ROM i had found with good battery life and stability but the FM radio thing sucks and more over when asked about it in the thread it is neglected so can any1 please help me on this
Did you read the earlier posts?
Yes the reception sucks,, on any OS, and yes android requires Bluetooth to be running.
samsamuel said:
Did you read the earlier posts?
Yes the reception sucks,, on any OS, and yes android requires Bluetooth to be running.
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Not really reception on WinMo 6.5 was good that on windows phone 7 was pretty decent but on android its suckxxxx I tried a different radio that did not require bluetooth but then again reception was bad
Sent from my HTC HD2 using XDA App
In that case you're lucky, even when I'm in direct line of sight about 3 miles from our regional transmitter its rubbish,,winmo,wp7,android,,makes no difference,,I have a dirt cheap kids radio that I use for work,cost me £1 and is ten times better.

Fm Transmitter

If any of you are like me you like to play your own music while in your car well i went to wal-mart today and there was this thing called a fm transmitter it was 13 bucks so i gave it a try it works good i suggest you guys try it
Depends if you can actually find an empty frequency. They used to work good years ago but the fcc neutered the transmitters since the stations were complaining it was causing static on nearby cars. The real reason is they wanted the users to get upset and just listen to the radio stations instead.
Either buy a deck that has a line in (best option...I use this one) or buy a transmitter that actually hooks into the antenna port of your factory deck and it shuts off the antenna and pumps the transmission straight into your factory decks antenna port.
digiblur said:
Depends if you can actually find an empty frequency. They used to work good years ago but the fcc neutered the transmitters since the stations were complaining it was causing static on nearby cars. The real reason is they wanted the users to get upset and just listen to the radio stations instead.
Either buy a deck that has a line in (best option...I use this one) or buy a transmitter that actually hooks into the antenna port of your factory deck and it shuts off the antenna and pumps the transmission straight into your factory decks antenna port.
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Hmm it works fine in georgia and 87.7 here is just straight static here so it wont interfere with no one
maybe it's just me but I thought FM transmitters were kinda a common knowledge thing.
Man I wish we could reverse engineer a way to pump it straight from our epics. That would be a hell of a phone feature. In the meantime I use a deck with bluetooth audio, the phone sees it as headphones though..
cd's or tapes?
schnowdapowda said:
Man I wish we could reverse engineer a way to pump it straight from our epics. That would be a hell of a phone feature. In the meantime I use a deck with bluetooth audio, the phone sees it as headphones though..
cd's or tapes?
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Isn't there a phone that has a built in transmitter?
Ya, there are all junk. I even bought a iphone one and it suxs as bad. Stay away.
Sent from my SPH-D700 using Tapatalk
BBlunts456 said:
Isn't there a phone that has a built in transmitter?
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Some nokia's do. And the clarity depends on your area. You have to find a frequency that doesn't have a station on either side of it. DFW=99.9
cd's or tapes?
SINNN said:
Ya, there are all junk. I even bought a iphone one and it suxs as bad. Stay away.
Sent from my SPH-D700 using Tapatalk
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Not true! I've owned about a dozen of these and this one is BY FAR the best. Well constructed, very strong signal, no fading, and it's got an extra outlet on top!
http://www.amazon.com/Coby-CA-745-W...F6G0/ref=sr_1_7?ie=UTF8&qid=1308980903&sr=8-7
It's awesome. Seriously, get one.
No matter which one I use, I can't stand it. I hate any sort of static that comes over them, even if it's just a tiny bit. I love my stereo with a line in plus a USB port. If it had bluetooth I'd be happy
BBlunts456 said:
Isn't there a phone that has a built in transmitter?
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lg fusic has fm transmitter built in.
Audio in threw 3.5m jack is, possible even without a aftermarket deck. Depending on the year of your car check the dealerships for options then search the part number on ebay. If aux ain't an option for your car you can modify your stock radio to accept aux in
Sent from my SPH-D700 using Tapatalk
MysteryEmotionz said:
Audio in threw 3.5m jack is, possible even without a aftermarket deck. Depending on the year of your car check the dealerships for options then search the part number on ebay. If aux ain't an option for your car you can modify your stock radio to accept aux in
Sent from my SPH-D700 using Tapatalk
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after I try this transmitter for a while if I dont like it ill see but for 13 bucks its worth the try
Sent from my SPH-D700 using XDA App
buy one on ebay from hong kong or something... the ones in the USA are really low power due to FCC regulations, foreign ones have a stronger signal.
I have the $13 one from Wal-Mart. It works great 99% of the time, which is good enough for me. In fact just took a 3 hour car ride with the family yesterday and there was only one time for about 10 seconds that we heard static. Don't expect cd quality sound, but it is acceptable.
Sent from my SPH-D700 using XDA App
Poryhack said:
maybe it's just me but I thought FM transmitters were kinda a common knowledge thing.
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i was trying to figure out if the OP was sarcasm for a few seconds... apparently you and i are the only ones that think this is common knowledge.
murso74 said:
i was trying to figure out if the OP was sarcasm for a few seconds... apparently you and i are the only ones that think this is common knowledge.
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Lol well im 16 so im not full of knowledge like you elders are
Sent from my SPH-D700 using XDA App
Definitely common knowledge I know 100 people that use them for their mp3 players. I have had one for my phone forever.
Sent from my SPH-D700 using XDA Premium App
CrfEpic4g said:
Lol well im 16 so im not full of knowledge like you elders are
Sent from my SPH-D700 using XDA App
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I'm only 19 lol. Anyway sorry for derailing the topic I'm done now.
murso74 said:
i was trying to figure out if the OP was sarcasm for a few seconds... apparently you and i are the only ones that think this is common knowledge.
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No, yeah it's most definitely common knowledge. I used to have to use one about 6 years ago before I had AUX-in in my car. I am somewhat of an audiophile and absolutely cannot stand fm transmitters. They are a decent option for someone that doesn't want to spend much money and doesn't have a tape deck or something (I prefer tape deck inputs over fm transmitters).
They are cool in concept, but just don't quite do it for me. I had a relatively strong one back then and after I installed an AUX-in into my car, I used it to broadcast music to all the stereo receivers in my house during parties. That was about the greatest use for it, for me. I have a 3 story house with receivers on all levels, so I'd just hook it up to my lap top and tune all the radios into the broadcast frequency and bam! Instant personal radio for the whole house.
EDIT:
MysteryEmotionz said:
Audio in threw 3.5m jack is, possible even without a aftermarket deck. Depending on the year of your car check the dealerships for options then search the part number on ebay. If aux ain't an option for your car you can modify your stock radio to accept aux in
Sent from my SPH-D700 using Tapatalk
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Click to collapse
Mystery is absolutely right. It is a pretty easy process if you have some know-how with car stereos/electronics in general. But these are typically a bit more expensive than an fm transmitter from wal mart. In my opinion, the sound improvement is worth it though. Thank god most new cars come with AUX-in and/or USB inputs pre-installed now-a-day though. My '09 altima coupe came stock with one.

Hacking sony sbh20 stereo bluetooth headset to use 3.5mm headphone out as 3.5mm in

Just got a Sony sbh20 stereo bluetooth headset (Review) And its great plays my music from my phone wirelessly, makes calls etc. It has 3.5 mm output so it can be hooked up to any speakers with 3.5mm jack.
However being a gutarist and an xda forum member im just not happy with what it can do out of the box.
Is it possible to turn the 3.5mm output into an input so i can use this for wireless guitar playing, perhaps with it paired to my phone which would then be hooked up to my speakers.
Basically i want a bluetooth guitar.
Any ideas or comments on how this may be achieved or if this is even possible.
Another concept that may work would be to use my phone itself as an amp transmitting via bluetooth. Probobly easier to impliment. Any ideas if this exists
No it is not possible, and it's also completely and utterly pointless, since you can buy Bluetooth transmitters for next to nothing more or less anywhere
Cptnodegard said:
No it is not possible, and it's also completely and utterly pointless, since you can buy Bluetooth transmitters for next to nothing more or less anywhere
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Far from pointless. It is a mod that involves doing something cool. Just because some companies make a product that can do what the OP is looking to do and for a cheap price does not mean that the OP should not try. If we all just purchased stuff that just works then we would have a world with a bunch of idiots that know nothing. And just wants to be solely ammused via You tube videos of dumb garbage. Oh wait, that is the vast majority of this worlds population. This is an Android forum where people do things the hard way so that they can just know.
I could have purchased a great PC case for not to much money. And v en ry little time spent earning said money. But I decided to mod a MAC G5 case. Pointless? No, far from it. This is truly my computer. Here are some pictures.
And how about my cars factory radio? Sure I could have installed a low level converter. Or installed an aftermarket head unit. No, I found the low levels signal circuits and installed RCA connectors on the back of my factory deck.
Sounds like this is how the OP wants to roll.
So OP roll on. Ill look into the setup you are looking to mod and let you know if it can be done and how easily it can be accomplished.
Edit. Yes, it can be done. You will have to mod the input output circuit at the headphone jacknor somewhere on the board. I will say this. Be extremely patient and use a very very good magnifying glass. Or your phone when soldering. And lots of light. What I did was use an app called overlays and created an overlay that put a flashlight widget whennI opened my camera app. This allowed me to permanently activate the flash LED and use the camera as a microscope when soldering my LG tones to act as an incar bluetooth adapter. Sadly though I broke the setup. But, I just may get what you have there and use that in my car next. Though only of it allows for hi definition audio throughput. Any way. Good luck and take pictures if you go through with it.
And one more thing. Like you stated. You could mod a headset to connect to your guitar and then stream the sound from your phone to the Bluetooth headset that is connected to your amp/head.
Sent from my SCH-I545 using xda app-developers app
Thanks for getting back to me these bluetooth units are going pretty cheap in vodafone stores in ireland right now (25 euro where evreywhere else including sonys website has them for 50) so i might puick up another one to mod, not much experience with soldering anything more complicated than audio cables but it will be a challenge, also propss on the g5 case its definately one of the best designed PC cases with the new mac pros coming out there could be a fresh influx of these second hand soon

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