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Why FM Radio can not route sound to BT A2DP?

I know that 98MHz FM Radio needs a somewhat long antenna but I can not see why that antenna should hang from my ears and tangle around my neck!
It makes me mad I can not route FM radio output sound to my bluetooth A2DP headset as I can do with audio players.
If HTC is so dumb someone should find a solution!

oruam57 said:
I know that 98MHz FM Radio needs a somewhat long antenna but I can not see why that antenna should hang from my ears and tangle around my neck!
It makes me mad I can not route FM radio output sound to my bluetooth A2DP headset as I can do with audio players.
If HTC is so dumb someone should find a solution!
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Sony Ericsson's radio requires wired headset as antenna too. I gueess this is the norm, but, agree with you that it should be improved.

I agree. There should be a way to connect a pure antenna to the phone and route the sound to the phones speaker or to wireless speakers.
That pure antenna could be a simple fairly long piece of wire or it might be a solid short but high performing radio-antenna.

It really doesn't matter... if the radio waves of the antenna won't kill you, then the Bluetooth will do the job... either way you're f*cked whith cancer...
Also using the headset as an antenna is common practice (Nokia, Motorola, SE, Siemens,...)... you're not gonna see anything new until the backgound technology of commercial Radios will change...

gnick666 said:
Also using the headset as an antenna is common practice (Nokia, Motorola, SE, Siemens,...)...
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Ok, dumbness is a common practice. So what?
gnick666 said:
you're not gonna see anything new until the backgound technology of commercial Radios will change...
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No new technology is required.
No (sensible) people expect a micro antenna for 98 MHz, a 50 cm piece of wire is completely acceptable.
What is required a little less dumbly written piece of software that can route the audio output (obtained using the 50 cm piece of wire pending from, let's say, my back) to the A2DP headset.

[TODO] Enable FM Transmitter

The combined WLAN / Bluetooth / FM chip in the Defy ( WL1271 ) is able
to not only receive FM Radio, it can also transmit Audio !
Both solutions support Bluetooth specification v2.1 + EDR, and provide FM transmit and receive functions to turn the handset into a personal area broadcast device.
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http://focus.ti.com/general/docs/wt...993&DCMP=WTBU&HQS=ProductBulletin+OT+wilink_6
So another locked feature that would make the Defy even better.
This thread is to collect informations that could help to enable it.

I always wondered why nokia is the only company (I know of anyway) that puts FM transmitters in their phones.
It is such a good way to listen to your music in unfamiliar places like friends house, rental cars, work cars.
This would be awesome to see working!!

-={antibyte}=- said:
The combined WLAN / Bluetooth / FM chip in the Defy ( WL1271 ) is able
to not only receive FM Radio, it can also transmit Audio !
http://focus.ti.com/general/docs/wt...993&DCMP=WTBU&HQS=ProductBulletin+OT+wilink_6
So another locked feature that would make the Defy even better.
This thread is to collect informations that could help to enable it.
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Click to collapse
I know this will be the dumbest question to ask, but can we also use it with mic and speaker for it to make it work like a two way communication device. Eg; police radios

In my opinion:
everybody must wait for the motorola that they would open the bootloader for the developers who will write the necessery drivers... like the 720p record and touch to focus

AtomCity said:
In my opinion:
everybody must wait for the motorola that they would open the bootloader for the developers who will write the necessery drivers... like the 720p record and touch to focus
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And continous-autofocus video recording? xD

Nokia N86 have special internal antenna for FM Transmitter.

Wow, this would be awesome if you got it to work. The one thing is miss from my old SE w980
Sent from my Defy

Interesting...

Aerial
1806 said:
Nokia N86 have special internal antenna for FM Transmitter.
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I think you have hit the nail on the head there. unless the defy has suitable aerial which i doubt because you have to use headphone cable for the aerial.Might be wrong thought. hope i am because this was a great feature of nokia's

its posible FM transsmisor on Defy ???

insestito said:
its posible FM transsmisor on Defy ???
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It's hard to tell.
There is no datasheet and the drivers are closed source.
If the chip does not require additional circuitry for the transmitter,
then there is a chance to get it working.
As antenna you could just cut the cable from an old headset and plug it in
while transmitting, if the same antenna is used for receiver and transmitter.

chaihg said:
I know this will be the dumbest question to ask, but can we also use it with mic and speaker for it to make it work like a two way communication device. Eg; police radios
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I think in theory this could be possible.
But as the range of the transmitter is max 10-20 meter, this would be
very limited
Maybe from one room to the other.

-={antibyte}=- said:
I think in theory this could be possible.
But as the range of the transmitter is max 10-20 meter, this would be
very limited
Maybe from one room to the other.
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Click to collapse
Yayy, feels good to know i can think electronics thanks.

so.... if defy have an internal antena, i can listen the radio via bluetooth?

It could be a very nice car kit for the people they don't have bluetooth inside.

n7650_fun said:
It could be a very nice car kit for the people they don't have bluetooth inside.
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If you don't care about others listening to your conversation while you are in a traffic jam . It's OK for music but i would never use it for conversations.

The defy would be one hell of a phone if you could get it to work, and the one/ones behind it one hell of a developer. At least to me. Can't understand how you guys discover everything and a few days later you show up with new stuff to play around with.
Is there anything you cant do with the Defy?
Crazy phone, freeking unbelivable talented developers!
Sent from my Defy

-={antibyte}=- said:
It's hard to tell.
There is no datasheet and the drivers are closed source.
If the chip does not require additional circuitry for the transmitter,
then there is a chance to get it working.
As antenna you could just cut the cable from an old headset and plug it in
while transmitting, if the same antenna is used for receiver and transmitter.
Click to expand...
Click to collapse
The transmitting antenna has to be a tunned length known as the SWR (standing wave ratio).The length of the antenna is extremely critical.
If a driver enabled the transmitter , but the was no antenna present irreversible damage could be coursed to the hardware.
The antenna will be internal.if the is one.

7iain7 said:
The transmitting antenna has to be a tunned length known as the SWR (standing wave ratio).The length of the antenna is extremely critical.
If a driver enabled the transmitter , but the was no antenna present irreversible damage could be coursed to the hardware.
The antenna will be internal.if the is one.
Click to expand...
Click to collapse
That is basicaly true, but those transmitters are only allowed to have some nanowatt (in most countries) . I think its rather unlikely an untuned antenna would break the output stage at this energy level. But i am not shure
But anyway, after reading some infos about the chip it looks like it has a seperate Antenna output for the transmitter that needs to be connected.
It seems unlike the Bluetooth part, audio cannot be send to the transmitter over any data path. It has to be connected to dedicated analog or digital (I2S) audio inputs. So the only way this could work at all is that Motorola connected all needed lines and just did not add software support.
I dont know how likely this scenario is ...
The transmitter is normaly controlled over the Blutooth interface via HCI.
Commands can be found here:
http://wiki.lsr.com/GetFile.aspx?File=/SWRU193G - Bluetooth Vendor Specific HCI Commands.pdf

This would be the first.app I pay for.
Sent from my SGH-T959 using XDA App

Transmitter of any kind (bluetooth or FM)

I know the phone has a fm tuner in it. is there any way to transmit from the phone to say the radio in my car without having to use an adapter. I was asked at work today by a coworker if there is anyway to stream. I use tune in radio or pandora to listen to most of the music i like but i have not ever thought about trying to get the phone to output it to my car. This would be really cool if possible. Does anyone know if there is a way either harware or software to make it work?
Thanks,
Joe

asadjewonxmas said:
I know the phone has a fm tuner in it. is there any way to transmit from the phone to say the radio in my car without having to use an adapter. I was asked at work today by a coworker if there is anyway to stream. I use tune in radio or pandora to listen to most of the music i like but i have not ever thought about trying to get the phone to output it to my car. This would be really cool if possible. Does anyone know if there is a way either harware or software to make it work?
Thanks,
Joe
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Click to collapse
As you note, it's an FM tuner, not a transmitter. I use the Bluetooth ADP profile to output audio to my car. If you don't have bluetooth builtin to your car stereo, but do have a line-in jack, you can use something like this to pick up the audio signal from your phone and transmit it to your car. I have one, and it sounds great!

thats what i thought but it never hurts to ask.
Thanks,

why not just use an AUX cable? seems to be the same concept and with out less static... those transmitters transfer alot of static too.
Im sure if your car has bluetooth A2DP streaming is available. i have it, but i just use the AUX less batter drain

Optimus-Prime said:
why not just use an AUX cable? seems to be the same concept and with out less static... those transmitters transfer alot of static too.
Im sure if your car has bluetooth A2DP streaming is available. i have it, but i just use the AUX less batter drain
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The Bluetooth receiver I previously posted has always been static free.

but with an aux cable you get less battery drain and you use the hifi wolfson headphone amp/ultra low power audio codec (assuming you use the headphone jack and not the car dock which uses usb audio converted by a probably lesser codec/amp than the one the phone is equipped with)
also since when do we have an fm tuner? i dont see an fm radio app?

Dani897 said:
but with an aux cable you get less battery drain and you use the hifi wolfson headphone amp/ultra low power audio codec (assuming you use the headphone jack and not the car dock which uses usb audio converted by a probably lesser codec/amp than the one the phone is equipped with)
also since when do we have an fm tuner? i dont see an fm radio app?
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fm tuner is in the chipset
http://www.broadcom.com/products/Wireless-LAN/802.11-Wireless-LAN-Solutions/BCM4330

drowningchild said:
fm tuner is in the chipset
http://www.broadcom.com/products/Wireless-LAN/802.11-Wireless-LAN-Solutions/BCM4330
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hmmm, that is the wifi chip. ok there might be potential as the chip works as a transmitter for wifi frequencies. but it may only work as a reciever on fm frequencies. it may be more plauible to use this as fm radio than the phones that have fm support in the gps chip though.
edit:
looked at the link and it describes is as a transciever, this might be posible, not sure if it is plausible. id imagine it would need a great kernel dev. without full documentation it is hard to tell if there needs to be supporting hardware like an external signal amplifier, i also doubt we have an fm antenna but it might not be too hard to add. but it does seem that we have atleast part of the equation here and the concept of an integrated fm transmitter for your car radio would be really cool.

Dani897 said:
hmmm, that is the wifi chip. ok there might be potential as the chip works as a transmitter for wifi frequencies. but it may only work as a reciever on fm frequencies. it may be more plauible to use this as fm radio than the phones that have fm support in the gps chip though.
looked at the link and it describes is as a transciever, this might be posible, not sure if it is plausible. id imagine it would need a great kernel dev.
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its a multi chip wifi/BT/fm
the galaxy s2 has the same chip

Nexus S FM radio from i9000 Miui?

I was browsing the miuiandroid.com homepage today and skimmed over the changelog. I saw that they have added FM radio support to our Galaxy S cousin, the i9000 (http://miuiandroid.com/2011/10/miui-1-10-14-changelog/). Do you think it would be possible to get this going on our Nexuses? I always seem to be buying phones that lack FM radio

i thought FM needs hardware support?
or just via Internet like an online player plays radio?

It does need hardware support.. But considering the chip inside the nexus s is actually capable of fm radio, we just need someone to work out how to get it going.

I don't think it is possible, there is an app called Spirit FM Radio and this is what the developer said concerning the Nexus S
"Sorry, I think Nexus S can never work. No antenna, power or audio connections to Broadcom chip and it doesn't have the Silicon Labs FM chip that the Galaxy S has."
http://forum.xda-developers.com/showpost.php?p=18235624&postcount=1437
And here he said: "Yes. End of road. Google cheaped out. Unless you're very handy modifying the hardware...
It's a dev phone and no dev has enabled FM likely because it's not possible.
My Galaxy S is almost identical (except it has an SL FM chip). I've tried to get FM out of the BCM4329 that the Nexus S shares.
I even got a direct to Bluetooth headset mode going that doesn't need a wired audio path. Nothing, not even FM static.
The RSSI registers do the same jumping as those other phones that likely have the FM power pins disconnected."
http://forum.xda-developers.com/showpost.php?p=18104025&postcount=1411
So I'm afraid we're out of luck.

antenna or chip or some stuff like that , are not so called "hardware" ?

read somewhere on the forums saying that the chip is capable. just nothing is connected. good luck soldering

i think it is not working on i9023.FM need a hardware support.

praveenmarkandu said:
read somewhere on the forums saying that the chip is capable. just nothing is connected. good luck soldering
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If all it needs is some soldering then where do I find out what to solder to what? For FM radio I'd do whatever it took. Had a vibrant and added a ffc just cause I could and never used it. I'd actually use FM radio so I'd be that much more motivated.

joshthewaster said:
If all it needs is some soldering then where do I find out what to solder to what? For FM radio I'd do whatever it took. Had a vibrant and added a ffc just cause I could and never used it. I'd actually use FM radio so I'd be that much more motivated.
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Very few people are capable of, or have the equipment to solder/de-solder/re-work modern chips and PCBs.
The Silicon Labs FM chip used in some Galaxy devices isn't there. Perhaps there's a place to solder one in. If not only choice would be the FM portion of the Broadcom BCM4329 BT/WiFi/FM combo chip.
I think you'd have to:
- Re-connect the Broadcom BCM4329 FM power pins somewhere useful.
- Do same for antenna Rx pins. May have to add some components for headset cable as antenna.
- Do same for audio pins.
IMO, not practical. Trade for another phone is easier.
Apparently the new Galaxy Nexus is supposed to support FM...

Go to radio shack. Buy a cheap FM radio.

Can the Samsung S20 FE reproduce local FM radio without network connection?

I am a new user of the Samsung Galaxy S20 FE and I am wondering if it can reproduce local FM radio without network connection. My question comes as this device has no wired earbuds jack, the wire serves as FM antenna. Please advise if you have made it possible and how. Thanks

There's no FM reciever in this phone.

I guess you are right . The phone specs reads on the COMMS paragraph, It is capable of FM Radio. That kept alive my hope. Thanks

If you want reliable info on phone specs go first on notebookcheck and secondly on gsmarena.

Will do so bladez, thanks a lot.

I also searcehd about this, and this is what I got:
They provide type-c to 3.5mm cable which also works as FM radio receiver, but they provide them only in selected countries (e.g South Korea), and also it seems like it only works with country specific models. You can't install samsung FM radio apk either.
So your phone doesn't have FM receiver inside, and you won't be able to receive FM radio even with the type-c to 3.5mm cable, if you managed to get one.

TASON42 said:
I also searcehd about this, and this is what I got:
They provide type-c to 3.5mm cable which also works as FM radio receiver, but they provide them only in selected countries (e.g South Korea), and also it seems like it only works with country specific models. You can't install samsung FM radio apk either.
So your phone doesn't have FM receiver inside, and you won't be able to receive FM radio even with the type-c to 3.5mm cable, if you managed to get one.
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Hello TASON42, thanks for taking action on this topic. I very much appreciate your clear explanation. Enjoy your weekend! Regards

gsmarena says the S20 FE 5g has fm radio, but it seems mine does not (SM-G781B/DS, in Romania)

Hello gabonu, as you can see the explanation by TASON42, there seems to be country specific rule that determines if a country smart phon will show a functional local FM radio or not. Until now I have the impression that there's little the user can do to change that, and it shall remain true until some one (hopefully from the XDA group) shows it possible. In the mean time I will continue to enjoy my phone as is. Have a nice day!

Hello, does changing the CSC have a chance of making FM radio work? If Samsung hasn't connect the chip with an antenna there is no chance to make it work. My model number is SM-G781B/DS, I think USA unlocked has SM-G781U. The SD chip has an FM radio receiver

lanant said:
Hello, does changing the CSC have a chance of making FM radio work? If Samsung hasn't connect the chip with an antenna there is no chance to make it work. My model number is SM-G781B/DS, I think USA unlocked has SM-G781U. The SD chip has an FM radio receiver
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Hello Lanant, thanks for your comment. My smartphone recently experienced a severe failure after a system update, it entered an infinite re-start loop. this was beyond repair according to samsung technical service , so I got reimbursed the full amount, then I decided to move to another branch with similar hardware capabilities and this time with NFC and of course FM radio. End of story for me... Thanks again for your comment, have a great day!

Samsung's Exynos Flagship level chipsets don't come with FM Radio receiver H/W or at least disabled. Only SnapDragon Chips have FM Radio. That's why S20 FE 5G has FM capability. This is the pattern happening for years.

Hello Vorion, thanks for sharing what you know about this topic. Have a great day!

Vorion said:
Samsung's Exynos Flagship level chipsets don't come with FM Radio receiver H/W or at least disabled. Only SnapDragon Chips have FM Radio. That's why S20 FE 5G has FM capability. This is the pattern happening for years.
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I'm on the s20 fe 5g and I don't see how I can use FM. The app does not come with the phone and does not work when sideloaded. Probably just due to my region,

gabonu said:
gsmarena says the S20 FE 5g has fm radio, but it seems mine does not (SM-G781B/DS, in Romania)
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I have the same variant in India. It does not have FM radio. Still I tried to download the Samsung FM radio app from the apkmirror website. That app cannot be installed even via the apk file.

So no fm for us

at this point I'm looking for a device with same or similar features as the s20 ultra and still with fm radio as well any suggestions are welcome. or if it's poisonous to have fm radio on s20 ultra SM-G988U model