A2DP Problems, but I still love it!

[Dignan17]

Don't get me wrong, I'm freaking LOVING cupcake. At the moment, I have a bluetooth adapter in my car that accepts A2DP audio. I also have a car that has bluetooth for handsfree phone calls. I love that now in Android I can tell the OS to use the adapter for music/audio, and the car for phone calls, and the OS handles both perfectly.

The problem I'm having is with listening to music. When I listen to music over bluetooth, about every minute or two the audio cuts out for one second and then comes back. It's only very slightly annoying. Here are some more bits of info:

• I don't think it's a signal problem, as it's not like the audio is muted - it starts back up where it left off
• I'm using the Android music player
• I've tried it with the phone on power and not
• I've tried turning off all other wireless and auto-syncing

Any ideas?

Otherwise, I'm totally loving this, and cupcake is freaking incredible!

[djunio]

Don't get me wrong, I'm freaking LOVING cupcake. At the moment, I have a bluetooth adapter in my car that accepts A2DP audio. I also have a car that has bluetooth for handsfree phone calls. I love that now in Android I can tell the OS to use the adapter for music/audio, and the car for phone calls, and the OS handles both perfectly.

The problem I'm having is with listening to music. When I listen to music over bluetooth, about every minute or two the audio cuts out for one second and then comes back. It's only very slightly annoying. Here are some more bits of info:

• I don't think it's a signal problem, as it's not like the audio is muted - it starts back up where it left off
• I'm using the Android music player
• I've tried it with the phone on power and not
• I've tried turning off all other wireless and auto-syncing

Any ideas?

Otherwise, I'm totally loving this, and cupcake is freaking incredible!

The same thing was happening to me about a month ago on cupcake, it was happening because i had multiple media/music players. I uninstalled em all and its been good ever since.

[PitchDarkShadow]

start ending apps/games/ect on your G1. u can use a taskmanager because when im listening to music through my headphones during school/work so on itll skip if alotta app/game/ect running at one time.

[f4phantomii]

start ending apps/games/ect on your G1. u can use a taskmanager because when im listening to music through my headphones during school/work so on itll skip if alotta app/game/ect running at one time.

This would be my advice as well. In particular I've noticed that the background sync tends to cut out audio or make games skip when it runs. So you might investigate reducing the rate at which you sync any POP3/IMAP accounts, etc. That could be a source of the problem as well, especially if, as you say, it is occurring at regular intervals.

[Ward]

When I was using this in Canada, I noticed that when my signal would jump from tour to tour the sound became jumpy. On the plane it was fine start to finish due to a lack of signal I'd like to believe. And now back in California it jumps when I jump from EDGE to 3G and back. From my understanding this is just an issue with Stereo BT in general since it's so much data.

[Dignan17]

Thanks for the responses, folks.

I should have mentioned that I've never before had this problem, and I've used this phone for audio a heck of a lot.

I'm not sure if Doggcatcher counts as another media player, but I certainly won't be uninstalling that, as I use it more than any other app.

I could have sworn I tried turning off all other radios and syncing (like I said in my post) but I'll try that again.

[Dignan17]

Well, I think you guys are really onto something with the multiple media players idea.

I use a program called Doggcatcher to download, manage, and play my podcasts on my G1. The program, when run, will start a service that just sits on the phone and occasionally checks for updates to my podcast feeds.

When this service is running, the default Android music player skips. If I reset the phone and don't start the app, the default music player doesn't skip. Naturally, it's not really a good option to have to restart my phone every time I want to listen to music, and no matter what, the podcast app skips. I refuse to uninstall Doggcatcher, as its my favorite app. Hopefully you guys will have an answer for me.

I now seem to be having an even more annoying problem, if that's possible. For some reason, even when the phone is nowhere near a stereo bluetooth device, it's impossible to get it to output audio through the port on the bottom. Audio just plays through the speaker, even if I disable bluetooth and restart the phone. Any ideas on this one too?

[azanutta]

guys, the problem here is an another... this is an A2DP bug of managing the bluetooth by android!
i've got the jabra bluetooth headset to listen the music wirelessly but i've got the same problem, a mute jump of the song that in worste cases are one every 2 seconds!!
it maybe depends on how much other android processes drain the phone resources, because i've seen that if i use simultaneoussly also the GPS with maps or mytracks, and the browser over 3g... the music becomes... well ... imbarassing...
hope that the bug will fixed soon =(

[Dignan17]

I have also been playing around with this and trying to see what causes the skipping.

So far I think I'm going back on my original acceptance of the "multiple music players" theory. While listening in my [parked] car, I tried ending as many processes as I could with "Advanced App Manager" or something (from the App market), and this did little-to-nothing to fix the problem. I then used "Useful Switchers" (get it!) to disable several wireless options like GPS, WiFi, and Auto Sync. This seemed to solve it.

I'm not sure why it can't manage the A2DP and the other wireless components better than it does.

[InspectorGadget]

Bluetooth radios need to be synchronized with WiFi radios so that one doesn't transmit at the time the other one is trying to receive, because the antennas are so close that the transmitter on the WiFi will swamp the BT receiver's AGC (gain control) even though it's not exactly on the tuned frequency, and drive its gain so low that it can't hear the other BT transmitter. Even the phone's transmitter may affect the BT AGC depending on the RF front-end circuitry of the BT chip.

All laptops have this synchronization between Bluetooth and WiFi for this purpose. That's why it's better to get and use internal Bluetooth in your laptop rather than an external dongle.

If turning off these other wireless services solves "skip" problems in the G1, it may be that the engineers who put the building blocks together in this phone neglected the sync connections necessary between the different transmitters. Or maybe the hardware people put them in but they have a bug in software in activating and controlling these sync features. I hope HTC and Google are aware of these issues and we'll see if they can do anthing about them in software in the months to come.

- The Inspector