Hi, All-
Does anyone use a heart rate monitor with their Pixel 4/XL during workouts?
I have both a Polar OH1 and Polar H10 and many of my workouts involve high intensity intervals. I have noticed that the heart rate show in virtually any application I use seems to lag about 6 - 7 seconds behind my actual heart rate. I realize that Bluetooth isn't communicating at the speed of light, but 6 - 7 seconds latency seems pretty off. I have also have the same results with my wife's Scosche Rhythm+
I tried disabling Bluetooth A2DP hardware offload in developer options, and changed the AVRCP Version to no avail. I also tried pairing my heart rate monitors with my PC and the readings have much less latency there, so I think I've narrowed it down to the phone.
Any ideas?
Related
Given the extensive posting about A2DP on the Wizard, I was a little bit surprised not to find anything about this problem:
When streaming music from windows media player, the sound sometimes starts playing back slower or faster - thus changing the pitch. Sometimes as much as a step and a half (like from C to A). Clearly noticable in other words.
Now is this because of the Wizard, or the Jabra BT620s? I googled, and I found one other person complaining about something similar - but when using an iPod.
With default settings, I was getting drop-outs every 2 or three minutes...
I was able to tweak reg settings some:
A2DP\Settings\BitPool = 45 (60 sounds great, but only for a few seconds)
Drivers\BuiltIn\BtA2dpSnd\Priority256 = 60
AudioGateway\Capability = 69
I use Shogunmark's Cingular based 2.26.10.2 ROM.
Any thoughts?
Hey I'm getting the same effect with my NextLink Spider stereo bluetooth set...
Something tells me its just the processor speeding up and down, or something with the transfer to the headsets and codecs. I wanted to check whether it was VBR music files (variable bit rate) that were doing it, but since that usually only affects quality I don't think it is related.
Its obviously not a big deal, it can be kinda funny sometimes =P ... but I am curious as to why its doing that and if it can be corrected !
So basically I'm just lettin ya know you're not alone with the ipod guy!
(I have a cingular 8125, and I just switched over to a tmobile MDA (8125 is waaay to bulky), so i'll let you know if the new phone does it too!)
Good to know it also happens on the MS BT stack. This is a common problem with pre-WM5 Widcomm-based devices (see my A2DP-related articles).
Ok, so I'm not alone... Funny how that makes me feel better.
I'm still looking for a solution to all this. I guess if this is because of bandwidth limitations, it would make sense to lower the BitPool setting.
I'm going to try to dial in the best settings, by trial and error...
I sure hope MS can improve the BT stack some more.
this is to do with the buffer,when the muisic stops because of interference the wizard carryon sending the muisic to the buffer,problem is the when the interference stops the muisic track is seconds ahead of the buffer ,so the muisic is rushed out in order to receive new data.this seems to be a problem with the proccessing units in the headphone and not in the ppc itself.this also happens in aku3 roms.
yup i got the same prob... i took it that it was the headset and not the xda, the slowing down i thought was it thinking hmm im running out of music so ill slow down until i get some more so this guy can still hear something damm anoying im finding the whole bluetooth thing not worth the hastle.
All i want to be able to do now is get talk button on the wired headphones to start up the voice dial and then i can have what i want just with a wire.
faria said:
this is to do with the buffer,when the muisic stops because of interference the wizard carryon sending the muisic to the buffer,problem is the when the interference stops the muisic track is seconds ahead of the buffer ,so the muisic is rushed out in order to receive new data.this seems to be a problem with the proccessing units in the headphone and not in the ppc itself.this also happens in aku3 roms.
Click to expand...
Click to collapse
Hmm, yeah that was my thought as well. It reminds me of old tape based Walkmans with bad batteries.
Does anyone know the equation behind the BitPool registry entry? At 30 vs 45, the sound quality is pretty bad, but with less pitch changes and / or dropouts. At 60 the sound is fantastic for a few seconds before the problems start. It appears that even increments of 15 (i.e. 30, 45, 60) at the time works better than numbers like 34 or 42 - it results in more conversion artifacts. I assume the BitPool settings determine Bit resolution and Sample rate...
Right now, I'm listening to internet radio at 64Kbps with no problems. So as far as I can tell the lower bit rate sources work better. Maybe also fixed bit rate over VBR.
Oh, and what is the AudioGateway\Capability number for?
With my current settings 128Kbps files play fine, but 160Kbps files do pitch change thing...
Sometimes when I am talking to people in my BMW (ULF System) hands free, people are very hard to hear. Especially on the freeway when there is more background noice. Would any of the bit rate settings work to improve this? I tried setting the Joint Stereo Bit Pool rate to 58 but that did not seem to do anything. Any other options out there?
Thanks
Hello, with my qtek 9000, from time to time I hear the music only half of the time (0,5s I hear, 0,5 not, and actually the uni adapt to this (the music is x2 longer)) with my ety8, and it doesn't come from thoses since I have no problem with them on another mobile and I get the same problem with other bluetooth headphones on my uni.
It doesn't come from being indoor/outdoor, near wifi or not because it's sometime doing this problem in my house and sometime not outdoor.
Soft reset does nothing, reset bluetooth on uni and my headphones once worked but it was certainlty pure chance because I tried many times then and it didn't do anything.
I hard reseted with another rom and the problem stayed the same.
Did anyone ever had this problem ? It's really wierd because when it's working, there is absolutely no problem so I can't really think that it would come from a damaged bluetooth transmitter...
try looking in Advanced Settings and change the bps transmitted etc. a fairly unnoticable lowering in quality of sound should improve the juddering.
well, reduced to 21 I still have a little pause each 5 seconds, reduced to 20 it's fine but the difference of quality is clearly noticeable.
my settings are:
Use Joint Stereo: Yes
Bitpool: 30
Max supported bitpool: 30
Min supported bitpool: 30
Sample rate: 48000 Hz
BtA2dpSnd Priority256: 0
Hope this helps
I don't have "BtA2dpSnd Priority256", though I don't think it would change anything, I'm gonna stay with this, that was a good hotfix thanks.
Wow, now, in only some days and for no reasons apparently, I must reduce it to 11.
Long time ago I let my uni just near to a wifi antena (from my freebox), actually touching it, bluetooth on but not using it at this time. Since my micro-weave detector make noise just around thoses antenas when I approach it, do you think it can have something to do with that ?
I have recently purchased a Verizon Galaxy S4 and love it. Initially I planned on loading a custom ROM but now that it is rooted and I have removed much of the bloatware, I realize I don't want to give up most of these Touchwiz features. However, there are two simple issues I have never had with an android device before that are bugging me.
First of all, as I'm sure many of you have noticed, when the battery reaches a certain level, the brightness dims to the lowest level possible and you lose the ability to manipulate the brightness. Generally this happens when my phone has at least a couple hours of battery life remaining. Granted, a bright screen will reduce this time but I'd rather have some usable time than none, as the brightness level reaches a point where the phone is completely unusable if you are exposed to any sunlight at all. I have tried going through the settings as well as overriding the brightness with an app I have called Screen Dim to no avail. Has anyone had success brightening the screen at low battery?
Additionally, every time you plug in a 3.5mm stereo jack into the phone, it drops down the volume and usually forces you to acknowledge a dialog box prior to permitting you to raise the volume. This is a wonderful feature if you are completely oblivious and all you ever use are low impedance headphones. However, I use this almost exclusively on loudspeaker stereos, 90% of the time it is my car stereo while I am driving. Occasionally I use bluetooth headphones but I'm not dumb enough to blast that on full volume so this feature is pointless to me. So now here is one more button I have to read and push while in the act of driving in order to get music playing which is unsafe. Is there any way to circumvent this annoyance?
Hi All,
Today, I've received some Jaybird X2 BT earbuds that I bought via eBay (UK), retail and sealed in a box.
They sound great etc. But, the BT range is sh-excrement-it.
I'm using this belt case https://www.amazon.co.uk/xhorizon-Tactical-Elastic-Neoprene-Samsung/dp/B00QLJ2TJ4/ (with no other bumpers/sleeves etc).
95% of the time, I get constant drop outs. Putting my hand over the case or swinging my arms causes a total loss of signal.
If I take the phone out and put it in the thigh trouser pocket, it's OK. But, if I touch the X2's control buttons I get drop outs.
Holding the phone in one hand, everything is fine. If I place both hands over the phone, by my waist, I get drop outs.
But, I can then put the phone back in the case and 5% of the time it's perfect. Weird.
I've tested the above on a hour walk, I've heard the speakers need a burning in time, but not BT!
Previous I bought cheaper earbuds (Mpow Wolverine) and the BT range on those was bad (drop outs when in the case), but the X2's are worse.
Is it possible to boost the BT on the Note 4 or is poor BT range on the X2's common or maybe they're faulty and need sending back?
Thanks for any quick help.
I might have found a solution to poor BT performance/range on the Note 4.
http://recomhub.com/blog/how-to-fix-samsung-note-4-bluetooth-problems/
I followed the instructions about clearing the BT app's cache etc and now after a quick test, don't have drop outs, when doing the things in the original post.
Hopefully the info is useful to others.
BT range shouldn't be judged simply on one partner
The usual range of Mpow BT headphones is 10m when there is no obvious obstacle, not matter this competitive Wolverine.
0-0-0 said:
Hi All,
Today, I've received some Jaybird X2 BT earbuds that I bought via eBay (UK), retail and sealed in a box.
They sound great etc. But, the BT range is sh-excrement-it.
I'm using this belt case(with no other bumpers/sleeves etc).
95% of the time, I get constant drop outs. Putting my hand over the case or swinging my arms causes a total loss of signal.
If I take the phone out and put it in the thigh trouser pocket, it's OK. But, if I touch the X2's control buttons I get drop outs.
Holding the phone in one hand, everything is fine. If I place both hands over the phone, by my waist, I get drop outs.
But, I can then put the phone back in the case and 5% of the time it's perfect. Weird.
I've tested the above on a hour walk, I've heard the speakers need a burning in time, but not BT!
Previous I bought cheaper earbuds (Mpow Wolverine) and the BT range on those was bad (drop outs when in the case), but the X2's are worse.
Is it possible to boost the BT on the Note 4 or is poor BT range on the X2's common or maybe they're faulty and need sending back?
Thanks for any quick help.
Click to expand...
Click to collapse
Does anyone have any advice?
Does anyone have any experience with the Samsung Level Link or similar, connecting it to the headphone jack?