[Q] Audio over bluetooth quality issues with car stereo (A2DP) - HTC One X

First time I've ever tried using bluetooth audio streaming, it's to my car stereo. My car stereo is Bluetooth 2.0 certified. The issue I have is any music I stream to it from my phone sounds heavily compressed, almost as if it's playing in 96/128kbps (music is all V0 or 320kbps).
My understanding is as the stereo is bluetooth 2.0 and A2DP certified it should be statistically able to handle up to 700 odd kbps.
Is there something I may have to change on the One X or car stereo? My One X picks up the car stereo as a bluetooth headset.
If I use a 3.5mm jack into the auxiliary port on the stereo it's fine, it's just the bluetooth streaming.

HTC A2DP streaming quality is a shame...
Looks like HTC (after few years) still hasn't fixed this problem in sense 4.0
Here you can find more info:
http://forum.xda-developers.com/showthread.php?t=708685
Yes, this realy is a shame..

Related

Car Dock and Bluetooth?

Does the Car Dock not work with a Bluetooth Earpieace or Speakerphone?
Of course the Motorola Car Dock works with a bluetooth earpiece and I can only assume it works with a BT speakerphone. I use my Atrix in the car dock with a Motorola H790 BT earpiece every day.
Why would you think otherwise? The car dock would be fairly useless, if it didn't work with BT devices in your car....
Because when I uae it through google navagation no commands go through the bluetooth I don't hear anything at all
Sent from my MB860 using XDA Premium App
LancerV said:
Because when I uae it through google navagation no commands go through the bluetooth I don't hear anything at all
Sent from my MB860 using XDA Premium App
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While I don't have my car dock just yet, I think your issue may be with your headset. Do you happen to know the brand and model of your headset? If your Bluetooth headset is not "A2DP" compatible then you will not be able to stream music or navigation directions through it.
From Wikipedia:
"Advanced Audio Distribution Profile (A2DP)
This profile defines how high quality audio (stereo or mono) can be streamed from one device to another over a Bluetooth connection.[1] For example, music can be streamed from a mobile phone to a wireless headset or car audio or from a laptop/desktop to a wireless headset.
A2DP was initially used in conjunction with an intermediate Bluetooth transceiver that connects to a standard audio output jack, encodes the incoming audio to a Bluetooth-friendly format, and sends the signal wirelessly to Bluetooth headphones that decode and play the audio. Bluetooth headphones, especially the more advanced models, often come with a microphone and support for the Headset (HSP), Hands-Free (HFP) and Audio/Video Remote Control (AVRCP) profiles.
A2DP is designed to transfer a uni-directional 2-channel stereo audio stream, like music from an MP3 player, to a headset or car radio.[2] This profile relies on AVDTP and GAVDP. It includes mandatory support for the low-complexity SBC codec (not to be confused with Bluetooth's voice-signal codecs such as CVSDM), and supports optionally: MPEG-1 , MPEG-2, MPEG-4, AAC, and ATRAC, and is extensible to support manufacturer-defined codecs, such as apt-X. Some Bluetooth stacks enforce the SCMS-T digital rights management (DRM) scheme. In these cases, it is impossible to connect certain A2DP headphones for high quality audio."
I am using it with a bt speakerphone, cruiser II and the navigate commands come through the cruiser or the audio if I have the fm on.

[Q] blutooth headset vs 3.5mm jack

when blutooth is paired by itself i have no problem, however when i get into my car and use my phone as a mp3 player via 3.5 jack to tape deck adapter all my audion including phone calls get routed to the 3.5 jack....
is there any way to set the phone so music still goes through the 3.5 while allowing the phone audio to be routed to my BT headset..

[Q] Music over Bluetooth to car stereo?

Is it possible to play my HTC One X music over bluetooth to my car stereo?
I have seen evidence in other HTC forums that it might be but I cant seem to make it work, when I pair my phone with my stereo i can make calls through it but when I play music it comes out of the phones speaker instead - any ideas?
If not i'l just use the audio jack cable aux input like i did with my old HD2...
c4llum said:
Is it possible to play my HTC One X music over bluetooth to my car stereo?
I have seen evidence in other HTC forums that it might be but I cant seem to make it work, when I pair my phone with my stereo i can make calls through it but when I play music it comes out of the phones speaker instead - any ideas?
If not i'l just use the audio jack cable aux input like i did with my old HD2...
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I find it rather hit and miss with me. It does work, but sometimes I have to reboot the phone before it will connect to media audio. Other times it just connects to phone audio, which is very annoying!
Wonder if its a bug?
c4llum said:
Is it possible to play my HTC One X music over bluetooth to my car stereo?
I have seen evidence in other HTC forums that it might be but I cant seem to make it work, when I pair my phone with my stereo i can make calls through it but when I play music it comes out of the phones speaker instead - any ideas?
If not i'l just use the audio jack cable aux input like i did with my old HD2...
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Check this out:
http://www.amazon.co.uk/Belkin-F8Z4...HUSE/ref=sr_1_1?ie=UTF8&qid=1334252383&sr=8-1
It's a Bluetooth receiver that plugs into the 3.5mm aux. Simply connect to the One X to the BT Receiver and play your music
EDIT: One thing to bare in mind is that is does require power. You would need to purchase a 12v adapter to plug into the cigarette lighter.
The phone will output to your stereo via bluetooth, set mine up yesterday and it was working fine, not used it enough to see any problems but it definitely works assuming your stereo is compatible.
there is an option in the ics music player to pick what output you want it to play to, menu/select player, and your bt stereo should be listed if its paired correctly.
Should display artist track info on your stereos display and allow you to skip tracks etc, didn't actually try that yesterday but my HD2 could do it so will be a bit miffed if the One X can't.
shangostar said:
The phone will output to your stereo via bluetooth, set mine up yesterday and it was working fine, not used it enough to see any problems but it definitely works assuming your stereo is compatible.
there is an option in the ics music player to pick what output you want it to play to, menu/select player, and your bt stereo should be listed if its paired correctly.
Should display artist track info on your stereos display and allow you to skip tracks etc, didn't actually try that yesterday but my HD2 could do it so will be a bit miffed if the One X can't.
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That will only work it the stereo supports A2DP
My DHD working with my Kenwood headunit but I cant get this phone to play via bluetooth anymore, when i select the stereo in the music player nothing happens!
shangostar said:
Should display artist track info on your stereos display and allow you to skip tracks etc, didn't actually try that yesterday but my HD2 could do it so will be a bit miffed if the One X can't.
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Sorry, but HD2 has a AVRCP 1.3 but all of HTC Android series has AVRCP 1.0 version... Soo, not artist or track info transmit to device.. It's android related thing, not HTC's fault...
But, Samsung Android phones has AVRCP 1.3 (SGS II, Note..)... It seems, Samsung make different bluetooth stack instead of stock android one...
connected my one x to my car yesterday (normal VW golf audio system) via bluetooth.
calls AND sound both work fine, without any problemes. Like it did with my DHD
greetings
jabra bt3030 is another alternative, it connects to phone via bluetooth and then you can plugin a 3.5mm headphone cable to your head unit - only thing is , a2dp sucks compared to simply plugging in the phone, its quieter and the quality isn't as good.
lawrence750 said:
jabra bt3030 is another alternative, it connects to phone via bluetooth and then you can plugin a 3.5mm headphone cable to your head unit - only thing is , a2dp sucks compared to simply plugging in the phone, its quieter and the quality isn't as good.
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Exactly my thought. The only reason to have BT in such a scenario is to let people in the back seats control the music. In all other cases, if you have to use an extension cord anyway, why not plug it directly in the phone? The only BT "dongle" that makes sense (in that eliminates the need for a cord) is the HTC one that plugs directly in the aux jack socket of the car stereo (IMHO, and excluding sound quality from the equation).
Does anyone know of a way to actually STOP it automatically playing music over bluetooth?
I have a Ford Mondeo and had the same irritant with HTC Desire in that once connected, it will automatically start playing music over bluetooth. All well and good apart from when I want to put a film on for the kids in the back and have the audio over the stereo.
All I want is a way of telling the in built music player to not start!
Reason4444 said:
Sorry, but HD2 has a AVRCP 1.3 but all of HTC Android series has AVRCP 1.0 version... Soo, not artist or track info transmit to device.. It's android related thing, not HTC's fault...
But, Samsung Android phones has AVRCP 1.3 (SGS II, Note..)... It seems, Samsung make different bluetooth stack instead of stock android one...
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Well that sucks, im sure some roms will have it given time though

Aux and Bluetooth.. this works

For anyone that has a car stereo with a usb and auxillary plug I got this one and it works perfect i leave it plugged in (Power to stereo all the time from fuse box) it connects to my plantronics voyager pro hd (headset) and my bluetooth dongle connected to my kenwood stereo with usb (for power) and plugged into 3.5 aux jack (the cord that comes with it is only maybe 4 inches so this is great you don't have that long annoying cord). As soon as i turn bluetooth on in the phone while i am in the kenworth it auto connects to both.
i have profile for voyager pro set to audio only and have the dongle set to media only. music plays nice and clear then when call comes in stereo mutes and call is routed to headset (no echoes and clear) when disconnected from call music starts again.
Been reading about this and have seen people returning their phones because of this so hope it helps anyone.
USB Bluetooth 3.5mm Stereo Audio Music Receiver Adapter for Speaker iPhone Mp3 | eBay

Bluetooth Audio One Sided

When I connect to media audio via bluetooth in my car, I can only get audio out of the left side speakers. This is repeatable on different apps that play music. When I play a radio station in my car I get sound out of both sides.
What can I check to help diagnose this problem and hopefully fix it?
Thanks.
Does anybody else have this problem?
Does your car audio system support A2DP stereo Bluetooth profile ? Probably it does, otherwise I don’t think you can stream audio with just the Hands-free (HFP) profile (which is a low quality link meant only for calls). Mine works fine in stereo with my car’s audio system. Try deleting all the BT settings from your car and initialize everything from the beginning.
Iam verry sure that your audio car not support A2DP because in my car i can use for stereo...try to see the specification for your car audio bluetooth..
Sent from my HTC One X using xda app-developers app
It works fine when I use my Galaxy Nexus. This makes me believe it supports A2DP. This problem is unique to the One X for me. Did I get a bad phone?
Also, when I crank the balance over to the side that doesn't work I can hear it a little bit, but it's crackly and distorted.
EDIT: Problem solved. Re-seated the wiring in the sound system and everything is fine now.

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