Dears,
I need your help.
As we all might know, A2DP Bluetooth profile supports only few codecs for transmitting audio stream:
SBS - general, supported by all bluetooth devices with A2DP profile, has the lowest sound quality coding
APTX - closed by license, good quality coding, but it is paid, lot of devices don't use it.
AAC, MP3 - good quality coding, free, but also not supported by lot of devices.
What kinds of BT coding does NOTE3 Bluetooth stack support? I realy know that SBC and APTX.
What about ACC and MP3?
Thank you in advance!
I am sorry! please, move it to Q&A thread! I am really sorry!
Related
I want to "cut the cable" and stream audio from my JAMin to a set of lightweight BT headphones while I workout.
I have a JAMin but I have not bought any BT headphones yet.
Primarily I use the Mobile Slingplayer and TCPMP to watch videos (mostly with mono audio).
I have seen the hacks for A2DP but I worry that the processing overhead required for A2DP will kill video performance and also that the Slingplayer and TCPMP don't stream over this profile (from the postings only WMP seems to work?).
Would I at least be able to get mono audio working wirelessly while watching video? Which BT headphones would you recommend for this?
Thanks in advance.
A2DP hack available at this site accept audio stream from any programs. Windows Media Player mentioned as only one program which support remote control functions like Play/Pause, Fwd, Bwd. Prophet performance good enough to watch video with stereo over A2DP. I don’t know about Slingplayer and TCPMP my preference are different, but my experiences with SmartMovie are successful to watch video with stereo audio.
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.
Hi, 6 months ago I bought this beautiful Android 5.1 car unit
It's really nice and smooth but it has a big problem:
Audio stream and calls have a really poor quality using bluetooth, radio and AUX are fine, even using sdcard/usb but I can't understand how can I fix this problem
I looked on Google if some people had a similar problem but I couldn't find anything useful at all
Even Eonon support can't give me a precise reason for that
Thanks in advance for help
No help at all?
Take a video, if possible.
I don't know if you can hear the crackling noises from a video anyway
https://www.youtube.com/watch?v=mmd4NdyUyLY
I have the same issue. I think it is just that the Eonon head unit only supports the (old) standard A2DP codecs. My old Sony bluetooth dongle sounded better. It has an HD profile listed. The Eonon does not. These are all the codec's my phone supports: SBC (what it is using), AAC, aptX audio, aptX HD audio, LDAC.
https://forums.oneplus.com/threads/...ault-setting-after-5-1-0-update-in-5t.821840/
According to this topic in the Oneplus forums, it has been down by design. Is there a mod or something that you can do in order to unable it?
saar17 said:
https://forums.oneplus.com/threads/...ault-setting-after-5-1-0-update-in-5t.821840/
According to this topic in the Oneplus forums, it has been down by design. Is there a mod or something that you can do in order to unable it?
Click to expand...
Click to collapse
No, since otherwise, your headphones wouldn't work. You can't use AptX HD on a headphone that only supports AAC or SBC. If your headphones support both AptX and AAC, the system will let you change that. The same goes for the rest of the settings. Every BT headphone supports the SBC standard, headphones that are Apple branded (AirPods, Beats) and others use AAC and higher priced BT headphones with Qualcomm chips support AptX (HD) and AAC. Higher end Sony headphones use LDAC. All of these support the lowest quality standard SBC. There's absolutely no need to any of these, since it would just break things.
Hello,
is it possible to add some kind of audio player with lots of audio codecs to a chinese car stereo 9601? I thought it runs wince. I ask this cause some music sounds far less good then others, so the used codecs by the stereo aren't that good i think.
grtz