Hi guys
i read xda so much, but i don't write as well
i have a big issue with my galaxy s 2
i use a bt car stereo, with a2dp and avrcp support
i used to stream all my music collection from my iphone4
now i got my sgs2 and i love it... but
the audio stream looks "limited"
it seems a bandwidth issue, or i don't know a quality issue
with iphone4 i streamed at full quality, now the sgs2 sounds a lot worst
other than that, i have to disable wifi because if on, the music is choppy and skips a lot
with wifi off, the stream goes well, but it sound bad...
sorry for my not so perfect english... i hope there is a way to improve sound quality because i "live" with a2dp on in my car...
That's strange. My a2dp stream actually sound better from sgs2 than it does from my ipod touch 2nd gen, iphone or my computer (bluez).
Receiver is a belkin stereo a2dp receiver.
Are you sure that it's not in handsfree mode? Long press the a2dp device in bluetooth settings and there should be an option to select it to be a media device, make sure it's checked.
thanks for the reply gvoima, no it's in media device mode
i think the problem is the bitpool
i've got the same problem of this guy: http://forum.xda-developers.com/showthread.php?t=708685
there is an mp3 sample of the problem in the first page
gvoima said:
That's strange. My a2dp stream actually sound better from sgs2 than it does from my ipod touch 2nd gen, iphone or my computer (bluez).
Receiver is a belkin stereo a2dp receiver.
Are you sure that it's not in handsfree mode? Long press the a2dp device in bluetooth settings and there should be an option to select it to be a media device, make sure it's checked.
Click to expand...
Click to collapse
I got a belkin stereo receiver as well, but it sounds bad and choppy, just like the topic starter described. Though still compressed (this is a known issue for A2DP due to bandwidth limitations) songs sounds much better from my Nokia E52 work phone.
rikc said:
I got a belkin stereo receiver as well, but it sounds bad and choppy, just like the topic starter described. Though still compressed (this is a known issue for A2DP due to bandwidth limitations) songs sounds much better from my Nokia E52 work phone.
Click to expand...
Click to collapse
The "but my (insert phone) worked better" isn't really valid. For as many people who make that statement there are an equal number who are shocked that the SGS2 works where other phones haven't. This is kind of like the Wi-Fi issue. When two pieces of equipment don't interact well you can't just blame one of them.
In my car and on my Yamaha YSP-4000 the SGS2's Bluetooth works better than any phone I've used. That includes the HD2, G2, and G2X. The sound is much more defined and headset controls (random and repeat) show available for the first time. The SGS2 also feeds track info to the car which none of the others did.
Bluetooth connections and sound quality are always a big YMMV.
My Sony MW600 sound great, I use to have a Motorola Defy , and it use to have an "Enhanced Stereo" option in the blue-tooth menu, the Samsung S2 does not have this option.
@BarryH,
Oh I know, I not blaming the SGS2. I only think the SGS2 out sound to it's output module which is somehow less suitable for the kind of compression, maybe set by the Belkin module. Actually I'm currious if there would be ways to change the way the SGS2 sends sound signals via A2DP
rikc said:
@BarryH,
Oh I know, I not blaming the SGS2. I only think the SGS2 out sound to it's output module which is somehow less suitable for the kind of compression, maybe set by the Belkin module. Actually I'm currious if there would be ways to change the way the SGS2 sends sound signals via A2DP
Click to expand...
Click to collapse
LG's implementation of Bluetooth drove G2X owners crazy. Check out this thread from the G2X forum...
http://forum.xda-developers.com/showthread.php?t=1117769
Maybe it will help. The only other solution for the G2X was installing an AOSP ROM.
Well, I tried it (Bluetooth Fix Repair), but off-course that tool is for a problem the SGS2 does not have.
From the tinkering I've done now I know.
- Having MusicFX installed does not make a difference
- Video players running ffmpeg codec do also not make much difference in sound quality
- The -type- of file does make a difference, i.e. low bitrate files play better
This makes me think, is there a music program which can resample/recode music before playing. I'd rather have software do that than A2DP do it badly, or is mono output (other than all the tools enabling playback on mono headsets which is for pre-A2DP headsets and thus something else) possible?
Edit /system/etc/bluetooth/audio.conf
Uncomment "Master" option and set it to "True".
Uncomment "MaxConnections" and set it to 3.
Most Android devices have this file configured poorly by default, those 2 settings should help though.
I'd suggest also enabling HFP and AutoConnect.
Great! That definitly reduced creaking/noises and even the occasional stuttering music!
Since you seem to know your stuff, would there be a way to send a mono signal to (only) the A2DP stack and would this decrease the 'tin can' effect? I'd rather have better upper tones than stereo.
knightnz said:
Edit /system/etc/bluetooth/audio.conf
Uncomment "Master" option and set it to "True".
Uncomment "MaxConnections" and set it to 3.
Most Android devices have this file configured poorly by default, those 2 settings should help though.
I'd suggest also enabling HFP and AutoConnect.
Click to expand...
Click to collapse
Thanks for the suggestions...going to try this and see if the sound quality improves in my car stereo.
Till now the best A2dp sound quality was on my Nexus S, but that was with the help of custom rom development and vodoo sound. Worst was the g2x.
Sent from my GT-I9100 using XDA Premium App
Ok guys, I think I might have... accidentily... run into a phenonemon.
I tested my phone on a Creative D100 wireless speaker it it went great, no tin can sound, no hickups.
This proved to me that there had to be something wrong. Now when I was posting here earlier I was listening a lot to music and at a certain moment I thought... wait I'm not hearing a tin-can sound anymore. However, later on while testing I heard it again so I thought I imagined it.
Powering off the phone and powering on again I was able to create this again. No tin can sound... however a lot of hickups (as if a lot of data had to be sent and it didn't quite fit). I made a call to my work phone (sound on the handset) to test and then the tin can sound was there again, no hick ups anymore though. Strangely enough a haven't been able to replicate the 'no tin can sound but hickup situation' though by powering off and on again. Tried after playing on the Belkin on the D100 again and no problems at all, great sound and no hickups whatsoever.
It appears to be a bigger issue with android connected to the bitpool setting the bluetooth receiver desires...
http://forum.xda-developers.com/showthread.php?p=14944891#post14944891
Let's hope the upcoming Cynogen can fix this issue.
I too felt that the A2DP sound quality on the Nokia BH103 is crap as compared to my Nokia 5800 (sounded even better than stock wired headset). It also uses a lot more battery, I find mediaserver using a lot of battery.
How do we escalate this to Samsung?
knightnz said:
Edit /system/etc/bluetooth/audio.conf
Uncomment "Master" option and set it to "True".
Uncomment "MaxConnections" and set it to 3.
Most Android devices have this file configured poorly by default, those 2 settings should help though.
I'd suggest also enabling HFP and AutoConnect.
Click to expand...
Click to collapse
Sorry, i'm on darky rom and i don't find this file, could someone help me out ?
Thanks
I finally got my Optimus 7 phone form Telus. I have to say, best phone I have every had. It recognized my bluetooth stereo headset right away, so no problems there. I here music AMAZINGLY over the headset.
Then I go to play video, and it will not play over the blue tooth. I have no idea why. I checked all the settings everythign I can think of and I am getting nowhere. Anyone no how to get the video audio to work over bluetooth.
Thanks.
That's because AFAIK Windows Phone 7 does not support any kind of streaming or file transfer over bluetooth at thise moment in time, it can only be used to pair with headsets etc.
Actually, the Audio over Bluetooth for Videos is a limitation of WP7, which may or may not be addressed in the next update. Microsoft is aware of it though.
Hi to all Devs and Pros here in the Forum,
I have recently been staying at a friend who owns an iPad and has a setup where he listens to all his music on his iPad and Online Radio via A2DP streaming to his Stereo via a relatively cheap belkin Bluetooth A2DP receiver.
The quality is absolutely perfect and ti sounds as though he has a wired connection.
I had my Iconia with me and also gave it a try. Unfortunately the sound quality was best said acceptable and nothing near the one of the iPad.
So I did some googling about it and found out that A2DP supports various codecs but only enforced one: SBC which seems to be a rather low quality option.
So my guess is Android / our Iconia is only using the SBC codec instead e.g. MP3 which is supported by most HW A2DP receivers todays (also the cheaper ones)
I found that there is a possibility to allow non-SBC codecs in Android to some degree by changing the following settings in '/system/etc/bluetooth/audio.conf'
Code:
[A2DP]
SBCSources=[COLOR="Red"][0|1][/COLOR]
MPEG12Sources=[COLOR="Red"][0|1][/COLOR]
I tried this but when enabling the MPEG12Sources I am not able to connect to any A2DP device at all (I tried 2-3 different ones).
On some place I read that to use e.g. MP3 as a codec license fees for the device manufacturer would apply.
So here are my questions:
Could it be that Acer has simply left this unimplemented? If yes do we have any chance to add this somehow to the system?
Or is it possible to change the settings for SBC to a higher quality?
I am looking forward to any of your thoughts or ideas about this...
/schaze
schaze said:
Hi to all Devs and Pros here in the Forum,
I have recently been staying at a friend who owns an iPad and has a setup where he listens to all his music on his iPad and Online Radio via A2DP streaming to his Stereo via a relatively cheap belkin Bluetooth A2DP receiver.
The quality is absolutely perfect and ti sounds as though he has a wired connection.
I had my Iconia with me and also gave it a try. Unfortunately the sound quality was best said acceptable and nothing near the one of the iPad.
So I did some googling about it and found out that A2DP supports various codecs but only enforced one: SBC which seems to be a rather low quality option.
So my guess is Android / our Iconia is only using the SBC codec instead e.g. MP3 which is supported by most HW A2DP receivers todays (also the cheaper ones)
I found that there is a possibility to allow non-SBC codecs in Android to some degree by changing the following settings in '/system/etc/bluetooth/audio.conf'
Code:
[A2DP]
SBCSources=[COLOR="Red"][0|1][/COLOR]
MPEG12Sources=[COLOR="Red"][0|1][/COLOR]
I tried this but when enabling the MPEG12Sources I am not able to connect to any A2DP device at all (I tried 2-3 different ones).
On some place I read that to use e.g. MP3 as a codec license fees for the device manufacturer would apply.
So here are my questions:
Could it be that Acer has simply left this unimplemented? If yes do we have any chance to add this somehow to the system?
Or is it possible to change the settings for SBC to a higher quality?
I am looking forward to any of your thoughts or ideas about this...
/schaze
Click to expand...
Click to collapse
I changed the MPEG12Sources to 1 and I can connect my Nokia BH-214 and it works fine.
Hey folks
I found nothing with Google so I'm gonna ask here.
Maybe anybody has the same issue.
I can't stream any music with my nexus to my Bluetooth audio system of my seat Ibiza.
Phone calls work and everything else, only audio streaming isn't possible. It should work though, the Bluetooth audio system is capable of that as well as the nexus 4 of course.
Thanks
Edit: thread can be closed. Found another thread with the same topic. Seems I'm not the only one http://forum.xda-developers.com/showthread.php?t=2029210
sent from my nexus4 with PA, not speaking English natively. so you're welcome to correct me anytime.
kerngehirn said:
Hey folks
I found nothing with Google so I'm gonna ask here.
Maybe anybody has the same issue.
I can't stream any music with my nexus to my Bluetooth audio system of my seat Ibiza.
Phone calls work and everything else, only audio streaming isn't possible. It should work though, the Bluetooth audio system is capable of that as well as the nexus 4 of course.
Thanks
Edit: thread can be closed. Found another thread with the same topic. Seems I'm not the only one http://forum.xda-developers.com/showthread.php?t=2029210
sent from my nexus4 with PA, not speaking English natively. so you're welcome to correct me anytime.
Click to expand...
Click to collapse
Check first with any other device that your stereo indeed support audio streaming. I have FlyAudio and it reports as support A2DP but it is not. So when you pairing with it, Audio option is exist but will not work.
Hello,
As the title says , is there anyone who can please guide me for the following queries :
1. Does international Samsung Galaxy S-IV supports AptX audio compression for bluetooth audio streaming. I am a bit confused, although it is listed on the AptX website as a complaint device smartphone, some other places list only Galaxy S-IV Active as the complaint device. Would be nice to know which model variants of S4 support the aptx.
2. Would be nice to know about how to confirm that it supports Bluetooth audio aptX (any terminal or ADB command ? ), will this command even output the presence of aptX , even if the mobile is not paired to an aptX complaint device and actively streaming the audio. I am asking since I dont have an AptX enables bluetooth headphone or speaker at the moment, although I am researching prior to buying one.
3. If connected to an aptX complaint device , do we have to use the stock android ROM Music or Media player to get the benefit of aptX audio streaming. Or we can use any media player of our choice (like MX Player, Wondershare or even the ported Sony Walkman App) while running the stock ROM. I am running the stock WanamLite ROM 4.2.2 and prefer the ported sony walkman app for listening to music.
Would really appreciate the feedback and opinions for the queries, which are not only for me, but would help the community at large.
Thanks for your support.
So many views and not a single guru to advise and answer....surprising at the least....
Keeping the fingers crossed....
Pending my decision to buy aptx enabled Bluetooth headphones...till the queries are answered....hope these may help a lot of others like me.
Sent from my GT-I9500 using Tapatalk
Same doubt
I hace the same doubt in my case I do hace an aptx enabled headphones but I dont know if the feature is being used
I used S4 with an car adapter from htc and if i remember well the color from the led was different for the aptx/nonaptx. From what i know/remeber S4 has aptx.