Audio/Video Gap when playing through bluetooth device after MM update.... - Xperia Z4 Tablet Q&A, Help & Troubleshooting

After MM update, played some videos discovering there's an annoying gap between audio and video when the audio is streamed through a bluetooth device. (Bt 4.0 in my case).
Any of you guys have experienced the same??

drubio said:
After MM update, played some videos discovering there's an annoying gap between audio and video when the audio is streamed through a bluetooth device. (Bt 4.0 in my case).
Any of you guys have experienced the same??
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Hi,
Wich videos player ?
Tested on YouTube with BT4.0 (speaker and headphone) no problems at all.

Partially solved....
A factory reset did the trick at least with the google apps (YouTube, Google video) audio streaming over bluetooth.
Audio Gap persists streaming game's audio. No problem for me anyway in that case.

Related

Can not get sound over BT to headset while playing back video using WMP, music works

I am able to listen to music (mp3 files) using both WMP and GSPlayer with my
X01HT and a Motorola S9 BT stereo headset but when I try to watch a video
clip or movie, I then ONLY get sound coming from the handset's main speaker.
I have done searches for this problem here on XDA and the wiki and nothing
that directly addresses this problem. I did find a tweak for the A2DP settings
in the wiki which made a huge difference is sound quality but still no sound
with video playback through BT.
Does anyone have any ideas on what could be causing this?
TIA

Sound stuttering via A2DP/Bluetooth

Hi, I am using the tornado a2dp fix and got A2DP working with a Sony bluetooth headphone set and the sound is great but it stutters. I tried WMA and even the HTC music player and its still the same (although a little better with WMA).
Is anyone else having these issues?
I may try updating the firmware (if avalible) or removing the A2DP thing and trying this instead:
http://sheehantu.wordpress.com/2007/05/25/enabling-a2dp-on-windows-mobile-5-phones/
has anyone tried this? does it work?
Does anyone having skipping music via A2DP? ANy fixes?
Thanks. all help appreciated!
I get the occasionall drop-out of music over a2dp. Every 30 seconds or so?
Not sure how to fix it - Works perfectly from my laptop. I don't think it's a signal strenght issue either as if I hold my jasjam next to my head it still does it.
honglong said:
Hi, I am using the tornado a2dp fix and got A2DP working with a Sony bluetooth headphone set and the sound is great but it stutters. I tried WMA and even the HTC music player and its still the same (although a little better with WMA).
Is anyone else having these issues?
I may try updating the firmware (if avalible) or removing the A2DP thing and trying this instead:
http://sheehantu.wordpress.com/2007/05/25/enabling-a2dp-on-windows-mobile-5-phones/
has anyone tried this? does it work?
Does anyone having skipping music via A2DP? ANy fixes?
Thanks. all help appreciated!
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Hi Just tried that prog and so far is NOT working......
Edit: It DOES work.
Bit fiddly to work it out but hey presto............. and stereo.
Listening to 'Pulse' ATM and not dropping out. Whahayyy!
i tried ripping a CD to WMA using media player at 128kbps and it works fine via A2DP with no skipping, so i think it just struggles with high bitrate songs and VBR MP3.
Update:
I tried an MP3 at 128kpbs and it skips, but when using a 128kbps WMA file it works perfect. So if you plan on using bluetooth headphones, get wmp 11 to convert everything to 128kbps WMA and you'll have not one problem.
Ok i have been playing with this and found a solution.
Use TCMCP. This plays AAC,WMA,MP3 and also video but if you embed the album art into the music file it will display this too. You can play the music at any bitrate and it doesn't skip with a2dp and bluetooth headphones.
And when you run this you have about 20MB avalible ram free.
To sort out your music and embed album art try music monkey.
Have fun!
I have the Pulsar 590A headset. Regarding stuttering audio; One thing to keep in mind; if you have paired it with your mobile phone, and later start a different pairing operation with bluetooth on your laptop, then the old connection with your phone may still connect automatically as a "mono headset" without you being aware of it. If you then connect the headset (manually) on your laptop to listen to stereo music (A2DP) the connection appears to succeed but you might get stuttering audio because you are also connected to your phone ! These seem to be two independent services that fight for bandwidth. I found that out when I happened to press the Dial button on the headset an to my surprise my phone (located in the hallway) called up my girlfriend ! And old pairing job I had done half a year ago and forgot about...Once I removed the phone pairing altogether (=phone link disconnected) the laptop music A2DP playback worked fine again. Can be a good thing to check in case you get stuttering audio.

[Q] Bluetooth Stereo Headset Issue

I have bluetooth issue . When I am watching video with stereo bluetooth the sound is behind about 2+ seconds . I am running HC 3.2 . US Wifi BB model .
I tried original player , Mvideo player , BS lite . all the same . HELP !!
I have the same issue. No problem when listening on a wired headset.
Sent from my HTC Flyer P510e using Tapatalk
Same problem on gingerbread as well, so not an HC issue.
Sent from my HTC Flyer P510e using xda premium
This lag seems to be inherent on many mobile devices. It possibly due to excessive buffering within the firmware or hardware to maintain a stream.
As many know, there is no problem with the wired headset but I have also connected an external BT transmitter I have with my Motorola headphones to the jack socket and there is virtually no lag then, showing that its an internal problem, not just BT connectivity.
If it is not hardware related or needs a kernal fix then HTC should be able to address this, otherwise its down to Google.
Are there any video apps that'll delay the video so you can get it back in sync? I haven't found one yet, but surely someone makes one...
Sound on Linux and therefore Android is an absolute convoluted mess. The poor implementation leads to all kinds of problems. I'm not aware of any players that allow audio / video sync adjustment. Possibly when VLC player arrives on Android.
http://www.videolan.org/vlc/download-android.html
But 2 seconds??? not likely to be able to adjust that out. It would require too much buffering. What format is that in?
Hm. Just tried again and it's working perfectly. Awesome!
BB wifi flyer, GB w/ latest updates, Plantronics 903 headphones, and MX video player. Audio is perfect.
Video is HD tv, encoded by handbrake w/ AAC audio.

[Q] Bluetooth Audio Delay

I know there are many BT/Wifi problem threads but even with wifi disabled and running a sync test file from the internal storage I have a 400ms delay when using Bluetooth headphones. Is this a sign of a defective unit or is there fix or a possible future OTA patch?
The delay does seem to get a little worse when there is heavy wifi usage. I love my prime despite other minor glitches, but this one is really bugging me.
robtheslob said:
I know there are many BT/Wifi problem threads but even with wifi disabled and running a sync test file from the internal storage I have a 400ms delay when using Bluetooth headphones. Is this a sign of a defective unit or is there fix or a possible future OTA patch?
The delay does seem to get a little worse when there is heavy wifi usage. I love my prime despite other minor glitches, but this one is really bugging me.
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Well I have had many a bluetooth audio device and it is more the exception than the rule for there to not be any streaming "lag".
Your issue is likely caused by the headphones and not the TP. Try another BT receiver (i.e. BT Speakers, or your computer, etc) and try another BT Source (i.e. phone or ipod touch).
I've used the headphones with several other BT devices with no lag. I can try to whip together another receiver to test.
I've always had a slight lag with Bluetooth audio. My Prime, Nexus One, and my Cowon S9 all have it, so it's not exclusive to the Prime or Android. Kinda lame, but it is what it is.
Every phone/BT device I've had that streams audio via A2DP generally always has a lag. I know this because I have movies playing in my car sometimes and to make things work, I have to offset the audio by x amount of seconds to ensure everything is synced.
Basically, it's perfectly normal.
My evo 4g & evo 3d never seemed to have any lag, but I know BT is not perfect. I use MX player because I like the UI on tablets, but video player would you recommend to be able to set the audio delay?
I plan on trying one of my plantronics headset with the prime soon , the speaker is definitely not that loud.
If anyone could suggest a media player that allows you to set the audio delay/offset, it would be greatly appreciated. I've tried a few different players and can't find one that has this feature... anyone?
Thanks in advance.
Dice player . I have no lag with my bt headphones with this player
aahz123 said:
Dice player . I have no lag with my bt headphones with this player
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Are you running Honeycomb, or Ice Cream Sandwich.
Also, any idea if this is for s/w decoding or h/w? (does it make a difference for you?)
I tried Dice Player, like the program, but it still lags on BT audio.
Funnily enough, I've seen audio streaming lag in every scenario including external bluetooth speakers, bluetooth in car, prime, phone, but there is absolutely no lag when pairing my bluetooth headset to my prime or phone.
I guess it really varies, but audio lag via bluetooth is nothing new.
This was asked earlier in this thread but with no answer. Does anyone know of a video player that has an adjustable video/audio delay to compensate for bt delay? Or can anyone who has not got a delay when playing through bt headphones say what make of headphones they use? Thanks.
jdudb said:
This was asked earlier in this thread but with no answer. Does anyone know of a video player that has an adjustable video/audio delay to compensate for bt delay? Or can anyone who has not got a delay when playing through bt headphones say what make of headphones they use? Thanks.
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I use Jabra Halo's paired with dice player. I am streaming both avi and mkv from my NAS from esfileexplorer. It has also been fine using buble upnp to do the streaming. In all cases it says it is hardware decoding. I have another set of bluetooth headphones. I'll check these soon.
aahz123 said:
I use Jabra Halo's paired with dice player. I am streaming both avi and mkv from my NAS from esfileexplorer. It has also been fine using buble upnp to do the streaming. In all cases it says it is hardware decoding. I have another set of bluetooth headphones. I'll check these soon.
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Thanks. I am sure in my case it is the heaphones because it does it with other computers as well.
BUYMECAR said:
Funnily enough, I've seen audio streaming lag in every scenario including external bluetooth speakers, bluetooth in car, prime, phone, but there is absolutely no lag when pairing my bluetooth headset to my prime or phone.
I guess it really varies, but audio lag via bluetooth is nothing new.
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What headset do you use?
BT lag
I have two bluetooth headphones, from nokia, the BH-505 (2.1) and a BH-501 (2.0). With my phone a LG Optimus 2x i have no lag at all. With the previous transformer (the first) i had no lag, Dice player included. On Transformer prime, with honeycomb i had no lag either, but since i upgraded to the ICS there's a lag with both BT headphones...
i've tried MX player and Dice player and both lag
Did anyone manage to sort this?
It's frustrating that I can switch immediately from my Prime to my Razr Maxx, with the same source video and the same BT Audio device (Jambox) and have nearly-imperceptible lag on the phone, but the supposedly more powerful Prime lags behind almost a half second.
What's Motorola doing correctly that Asus isn't/can't?
It depends on BT profile in use
I've been researching BT audio lag quite a bit, because I game a lot. Latency for playing music means nothing. For watching video, well you can compensate (like with suggested with Dice player). But for gaming, lag is a big deal.
I've tried a ton of device combos. Everything, *EVERYTHING* I've tried has >400ms lag. $400 BT headphones (Zik, mm500x), with computers, laptops, running different OSes (win/linux), BT audio gateways/dongles, PS Vita, Samsung, HTC and Motorola smartphones; you name it. Lag is there every stinkin' time.
From what I can tell, it has to do with the default compression scheme used by A2DP (SBC something). The delay is the encoding and transmitting of that encoded audio to your headphones.
When reading posts about this, for those who report no lag, when I dig deep I find one of two things: Either they were just using music or video as their test case, or they /are/ playing a game, but with the /headset/ protocol. The headset protocol (not A2DP) is for when you're making calls. A call being a two-way interactive thing, you need minimal lag. The problem is that the audio quality for the headset protocol is horrible. It's optimized for human voice. Sure you can play game using it, with no lag, but it'll sound like hell.
Some have mentioned that BT 4.0 can help. First, I can't find any true BT 4.0 headphones. But, in researching this, it seems the main thing that BT 4.0 brings to the table is low-power consumption. BT itself is a lower-level communication protocol. What we're after here is a level or so up, in the BT profiles.
Finally, I found mention of a proprietary audio compression codec, by CSR, called aptX. It can compress high-quality audio more, will less loss, and does it fast. This appeared to be the answer. I now have a pair of Sennheiser MM500x BT headphones, which support this, and a phone that supports it too (Evo 4g LTE/HTC One X). No dice.
The problem I'm finding now is that there is two ways to utilize such a codec: a) you can compress that same quality audio down into almost nothing, so there's less to transmit to your headphones, which can minimize lag. Sounds like a winner, but...you can also b) use even higher-quality audio, which is a lot more data, and compress that down to about what you had before, then transmit it. So, the transmission takes the same amount of time (>400ms) but you end up with audiophile quality sound over BT.
Unfortunately, it seems that aptX was made for the latter. Audio professionals wanted BT to be able to be used for super quality audio, beyond what we typically see with A2DP's SBC.
And, that's where I'm at now. Googling for "low latency bluetooth audio for gaming" has yielded very little relevant information.
Apparently I'm alone in wanting to use BT headphones for gaming.

Bluetooth Audio lag

Hey guys I just tried a Bluetooth speaker and some Bluetooth headphones and both work perfectly for music and movies and YouTube but if I try to play a game there is a 1 second lag for the audio, is there a way to work around this?

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