Hi All,
I have a Logitech Pulse audio headset that I have sucessfully paired up with my Kaiser and am playing music through it using S2P. Unfortunately, every so often the playback will drop out for a second or so, and then come back on. Apparently this is a trait with all things bluetooth, and I would have left it at that, but I think I know why the dropouts are happening.
I'll be listening to my music as per usual, and then there will be noticable audio glitches which will get worse and worse until the audio completely drops out for a second. What this means to me is that the bluetooth reciever in my headphones or the bluetooth transceiever in my phone is sort of "falling behind" in the transmission. To put it into more comprehendable terms, my headset is expecting to recieve, say, 100kb/sec in bluetooth audio, but my phone is only capable of sending 98kb/sec. That 2kb that is being lost every second is what makes the audio glitches get worse and worse until it drops for a second, and "catches up" before lagging behind again later on and so on and so forth.
What I'm wanting to know is, is there some way of forcing the bluetooth on my phone to only send a certain amount of data when in A2DP mode for audio? I really think that if I could somehow limit the data transmission on the phone, it would decrease these dropouts.
Related
To my knowledge, this is the first aviation headset that allows a BT connection to a phone you can talk on the phone hands free while flying. I can get it to connect and make/receive phone calls without a problem, but there is a semi-obnoxious hum/high pitch/static noise and I can't seem to make it go away, and also a ticking sound that increases and decreases volume at random. I've read about other pilots having great success with the BT portion, but I'm wondering if maybe the Tilt is only "compatible" with certain BT devices. Anyone have any thoughts/knowledge on the selective compatibility issue, or have heard of similar issues with BT in general? This is an incredible headset worth the money with it's MP3 input, noise cancelling, and everything. I'd hate to have to consider taking it back because I can't use the currently exclusive BT feature.
BT is comprised of a series of standards defining each individual interface type. I would wager that the problem is with the headphones more so than with the way BT is implemented in the phone.
That said, you can confirm the performance by swapping headsets or phones to see if the problems shifts.
Hi,
i have Galaxy S with I9000XWJM5 and have some strange problem when listening to music in my car. I connect phone with AUX cable to my car radio.
The problem is that playback have glitches every few seconds, it's 4-6 glitches per minute of playback. I don't know how to exactly explain that glitch. It looks like you quickly disconnect/connect jack to phone. I've had iPhone, Samsung Wave and several other mp3 players connected that way in my car and none of them had these kind of problems. I've also checked jack and cable and everything is fine. Connection to phone is also fine during testing. Do you think it's because software? Or maybe it's bad checking for AUX signal in the phone?
I'd say most likely software, but I'd be guessing.. There isn't really any way of knowing.. Is this with FLAC?
I'll try change something in my car audio. I think it might be caused by changes of inpedancy.
I don't get glitches in my car AUX unless the files themselves glitch and stutter (which they do with FLAC files). I would check to see if you have any EQ settings in your car stereo on, that is the culprit sometimes.
How is your playback with headphones/earphones? If you don't have same problems with them then it's likely something with the mini cable or the car stereo. If not, then likely something with the phone hardware/software.
Playback with headphones is 100% good (sometimes excluding FLAC playback as you said). I'll try changing EQ in car and if this don't help i'll try changing inpedance and write here what happened.
have you considered using bluetooth in car to stream audio from the phone instead of AUX cable?
like this
http://forum.xda-developers.com/showthread.php?t=726403&highlight=bluetooth
I was thinking about it but my car radio don't have bluetooth and I won't change it because it's pretty high end Blaupunkt and I love how it sounds.
Second thing is that a2dp has lower quality that regular aux.
Sent from my GT-I9000 using XDA App
I would also make sure it's not the data/phone connection somehow getting in the way of music playback. Try it on the airplane mode and see if you are getting the same glitches.
K_19 said:
I would also make sure it's not the data/phone connection somehow getting in the way of music playback. Try it on the airplane mode and see if you are getting the same glitches.
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i think i know what you mean.
you are refering to those annoying sounds when a call is about to coming, or when a data transfer is in progress, or whenever your phone switches from one tower to another tower
you get the ddddddd...d.d.d.d.dd..ddd.d.d.d.d.d.d.dddd... sound on the speakers, if your phone is connected to the stereo via 3.5
that's one of the reason why i switched to BT in the car.
I've checked line out with amplifier in my house and it's working 100% fine. So i have to check AUX in my car.
Sent from my T-Mobile G2 using XDA App
Oh I'm so sorry I wasn't trying to to that..... but as I was saying when playing my music throgh my car radio with bluethooth my music plays like a cd and it skips? I don't know if its the car radio or my G2 anybody else have this problem???
Sent from my T-Mobile G2 using XDA App
Try turning off WiFi, if it's on. Otherwise it may be a compatibility issue with the bluetooth receiver in your car.
Try some google searches for "music skipping bluetooth" and you'll find TONS of information on this problem. It's probably not your G2, because I use bluetooth in my car everyday and never have ANY issues with music skipping.
What type of bluetooth receiver / stereo are you using?
Don't know if it's related, but I get the same issue with a stereo BT headset, listening to music and just walking. If the phone is in my hip or thigh pockets, the music will skip while I'm in motion. If in my inner jacket pocket or breast pocket, it's fine. Also if I simply stand *still* the skipping goes away. Eliminated 'a loose component' from the mix by just holding it in my hand.. soon as my body passes between the phone and the handset (swinging smoothly with each step) the skipping starts. Also, if it's just playing through the built-in speaker it has zero problem (aside from being tinny and quiet).
I suspect that the signal strength management may be overly-aggressive in cutting down on transmit power as fast as possible to save battery, and doesn't ramp back up well.. if the phone is stationary, I can get a good 60-100 feet from it before the sound starts to drop out/chop. You may just be going through patches of RF interference on the BT band level, and getting similar interference/attenuation as you drive.
Hoping the new radio version with the upcoming OTA may fix this problem (and maybe the wifi attenuation issue too, while we're hoping for things).
I paired up my new Focus with my 2010 Acura TL yesterday. As I was driving home from work and talking, the volume from the car's speakers ranged from high to low and eventually dropped the call. I thought it could signal strength related but I had 5 bars so I tried again. This time the call didn't drop but the audio was horrible. Since yesterday I've tried to make calls in several areas of town and the call quality is just not very clear. If I talk and listen normally through the handset, the call quality is good. I have an HD2 that doesn't have this issue so I am wondering if this is Windows 7 related...
i have a bmw and have experienced similar results at times. though i think my iphone did have its own set of problems sometimes also. i have noticed the increase/decrease in volume before, though. it would be nice to know the source of the problem. likely the phone, not the OS i would think. my phone has never disconnected yet.
i don't make a lot of calls in my bmw really, but i'm getting addicted to the WP7 so i don't really feel like i will be able to trade in and go back to the iphone at this point if the problem is with the focus and not just needing a software update. though it would be nice to have an answer.
I am also disappointed in the quality of the Bluetooth connection between my Focus and my Acura TL (2009). I had the Focus with the same car, and no problems with the Bluetooth connection. With the Focus, the sound quality is terrible, and I often lose the connection between the Focus and the car. Not a dropped call, this can happen with 5 bars, its the bluetooth connection that drops.
Has anyone been able to improve their bluetooth connection?
The bluetooth in my 2008 Altima is useless with the Focus. It's all garbled up and just unusable. My original AT&T Tilt was the same way. I think it has something to do with the Bluetooth stacks used in these phones. Sadly, Nissan isn't planning on updating the firmware in their handsfree kit for my car, so I just got a good Blueant headset. Not the ideal solution, but it's better than nothing since I drive a stick!
I use mine with a clarion deck. Works and sounds flawless.
I have an aftermarket Sony deck in my car.. Bluetooth call quality is generally good but when it comes to audio streaming..it's hit or miss. I'd say 50% of the time there is always a loud 'hissing' sound in the background which makes the music sound like I was playing it off an old cassette. Other times the music is absolutely crystal clear without any hissing or background noise what so ever..as if I was playing it off a USB drive or CD. I use Slacker to stream music or songs stored on the phone through Zune.. same thing. At times I have to reestablish the Bluetooth connection several times before the hissing disappears.
I use my focus with a Sony BT Stereo and works fine. And all the in/out calls works flawless. Maybe is the BT profile (if the stereo don't have AD2P profile, the phone works in mono instead stereo).
I have the same problem with the sound volume going up and down. 2006 Range Rover. I finally gave up on using bluetooth in the car. My orevious HTC Focus and my wifes iPhone both work fine in the car
I have the Sony MW600 Stereo BT headset and a 2010 Mazda 3, both work flawlessly
I'm able to connect my Atrix to my JVC double din in car stereo system via bluetooth and it connects and pairs just fine. The problem I have is that the music "skips" or loses sound every few 20 to 30 seconds. It plays the whole music file but seems to drop out here and there. My old tilt 2 played on this same jvc beautifully using bluetooth. But the Atrix cant keep up? It happens no matter if I play music files through the stock android music player, or Power Amp player. What gives?
I also have a JVC Kw-Avx810 with bluetooth adapter installed. I have the same problem, for calls it works perfectly but for music its a bitt frustrating to hear music skipping each 30 seconds. Sometimes I am able to hear the music without skipping and that happens when I first play the music on the phone and while the music is playing on the phone I turn on bluetooth on the phone and the after 10 seconds it begins to stream the music to the Jvc Unit without any problem. I do that every time that I wanna hear music on my Jvc unit. Havent had any more issues so far.
I use it for my ford sync and at times it will do strange things that my nokia n95 never did but for the most part it works well...
Namuh said:
I'm able to connect my Atrix to my JVC double din in car stereo system via bluetooth and it connects and pairs just fine. The problem I have is that the music "skips" or loses sound every few 20 to 30 seconds. It plays the whole music file but seems to drop out here and there. My old tilt 2 played on this same jvc beautifully using bluetooth. But the Atrix cant keep up? It happens no matter if I play music files through the stock android music player, or Power Amp player. What gives?
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I had a similar problem when I had my streak. It was because I was pairing Audio with one device and bt phone with another. If you are doing this it will cause that. I use my Sony stereo just fine, will disconnect occasionally, but quality is great.
I use my atrix with my prius, and so far so good.I haven't had disconnect issues yet.
I think it's something JVC could probably fix with a firmware update. The atrix streams just fine to both my Sony and Kenwood headunits.
I have the same problem.
http://www.avforums.com/forums/car-entertainment-ice-sat-nav/539264-help-jvc-avx33-bluetooth.html
http://www.jvc-victor.co.jp/english/car/bluetooth/2007.html
The key terms: "Usable but not stable" , although it was not tested with Atrix, it is evidenced on both HTC and Motorola phones.
Great move JVC .. you've made your product useless to me and tarnished your reputation at the same time. Couldn't get your guys to write a new firmware ... Cant get me to buy another one of your products.
The same looks very like it will be true with Motorola's Andriod phones. Both JVC and Motorola will soon be wiped off my present or future ownership map. Woooo
Mine drops out/ goes silent / loses bt connection about once every 8-12 minutes when connected to my sony head unit (mex-bt5100). I turn off bt then back on, then restart my streaming radio.
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I have a jvc double din unit too. I don't experience any issues with audio... however the phone is a bit garbled when connected.
Have you tried moving the bluetooth dongle to the front USB port?
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i Have a single DIN (AVX33), the bluetooth is built-in so there is no dongle.
I read quite a bit about this problem .. it is related to the phone hands free profile sending signals to the headunit in a way that the headunit cannot handle without disturbing audio. It is exasberhated by low signal strength (both bluetooth signal and GSM signal), and also by the fact some andriods will give equal transmit priority to these hands-free signals that it does streaming audio. This is why turning wifi off helps a little (reduces interference). The signals that are interfering with streaming audio are the ones about battery life, and GSM signal strength. As signal strength chagnes, the phone sends out a new value despite the headunit not needing to do anything with it. This is what interupts the audio consistently but irregularly
End result .. it can be fixed by software adjustment on the andriod (do not send updates when streaming audio .. unlikely with Atrix unless Moto gets their thumbs out of their asses), by software adjustment on the receiver (unlikely as JVC is a **** company that does not care about my woes), or by mitigating the problem as I appear to be forced to do. I do this by turning off the "phone" porition of the bluetooth. Or by starting the music and THEN connecting to bluetooth. Unacceptable to me but I have no other options.
I f**king hate how complex our electronics have become and how consumers are powerless to fix these problems DESPITE the fact some of them have a higher level understanding of what the problem actually is. (therefoer I will not be purchasing anything from JVC or Motorola ever again. They prevent me from solving problems and refuse to fix them for me.)