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2013-10-14 03:15 PM
There seems to be a software problem with apt-x audio streaming.
When i pair my Sennheiser MM 550-X to my Xperia Z1, all works fine at first.
If i turn off the headphones and turn them back on again, the connection automatically gets re-established (also normal).
But then when i start to stream ... the audio is all choppy and there is a verry loud and fast ticking sound, the music is totally distorted, i can't even make up what song is playing.
If i pair the headphones again the problem is gone untill it automatically reconnects. Its a software bug for sure.
2013-10-14 05:10 PM
It happens to me sometimes too, 2 things help me so far - turning off BT in the phone before making the reconnect, or starting playback some while after they both reconnect. Disabling Smart Connect event related to the audio device seems to do the trick for some of them, on the headset it was enough to add an action "connect bluetooth audio" in the SC, but you never know which way works for the specific device (it happens with all BT audio devices- headphones, headsets, etc).
I am sure it is some kind of bug. Current Android version, at least afaik, doesn't have full support yet for the hardware BT installed on the phone (and it's Google's fault, not Sony's) and the A2DP protocol itself doesn't support buffering (so it is vulnerable to low signal level and will chop the audio for sure in such case) but still it all worked fine on my old XS, so I suppose we have to wait for some update about it, this is a common problem. Perhaps someone already have some better solution than above (just wait, they'll join), but I know for sure that SUS'ing the phone was just a waste of time, so it certainly is something wrong with the phone.
2013-10-14 10:47 PM
Disabeling Smart Connect didn't work for me tho.
I notice that when i reconnect... i get a popup, apt-x device connected, and then some high pitch static starts coming out of my headset, when there isn't even music playing.
I know for a fact its not the fault of those headphones... they work perfectly with my pc and with my retired galaxy s3.
this and the black screen are starting to get on my nerves.
2013-10-15 02:33 PM
You can disable multipoint on the headphones if you don't use it (then the problem almost certainly will gone). They support up to 4 different devices at once (if I remember), and if you don't connect to more than one audio source at once... worth trying. I hope Sony will fix this soon, it's really annoying.
2013-10-24 05:19 PM - edited 2013-10-29 09:36 AM
I have the same phone, (almost) the same headphones (MM 500-X) and the same problem. I can not disable or enable multipoint on my headphones.
Did anybody ask Sony about this bug? Otheswise I will do it
2013-10-28 11:59 PM
I didn't find this post when I created a new one here:
As written in the other thread I have the same problem with my Sennheiser MM 400-X.
To avoid going into the bluetooth pairing configuration each time I power on the headphones I have created a little app that tries to do that reconnection automatically:
Hopefully this app helps some other users to live with that problem until Sony fixes it.
2014-09-02 01:42 PM
2014-09-02 03:06 PM