Bluetooth profile - Advanced Audio Distribution Profile A2DP

T4x series specific matters only
Post Reply
Message
Author
roberts5
Freshman Member
Posts: 59
Joined: Thu Nov 17, 2005 4:31 pm

Bluetooth profile - Advanced Audio Distribution Profile A2DP

#1 Post by roberts5 » Mon Jan 23, 2006 2:54 am

I have a T41 w/ built-in bluetooth and would like to use a a wireless audio device (http://www.tentechnology.com/products/p ... viplay.php) which uses the A2DP profile. Is this currently supported by my card and software, and if not what would I have to do to be able to use this?

Thanks.

atha
Posts: 15
Joined: Tue Nov 22, 2005 2:11 am

#2 Post by atha » Mon Jan 23, 2006 6:32 am

If I recall correctly, the first Widcomm software to support to support A2DP profile is version 4.x. which is offered by Lenovo starting from Z-series as Bluetooth with Enhanced Data Rate Software for Windows XP/2000 - ThinkPad Z60m, Z60t. Software offered for T41 (IBM integrated bluetooth II) is version 1.4.3.4.

Questionable ways of patching the drivers exist to install the drivers for earlier Bluetooth cards (IBM integrated II, III, IV) also. But then again, I'm not sure whether or not A2DP requires newer hardware also (Bluetooth 1.2 or 2.0). IBM integrated II (which is the version in T41) is version 1.1, as far as I know.

I don't have a suitable Audio sink (headphones, speakers or other receiver) to test the issue.

kai920
Freshman Member
Posts: 95
Joined: Mon Nov 07, 2005 11:07 pm
Location: Hong Kong

#3 Post by kai920 » Tue Jan 24, 2006 2:37 am

I have an A2DP-compatible headset, and a T43... I've paired them up but don't know how to get audio to stream to the unit. :shock:
T43 | 1.73GHz | 2GB | 80GB 7.2K | 14x10
IBM/Lenovo T43 Review

roberts5
Freshman Member
Posts: 59
Joined: Thu Nov 17, 2005 4:31 pm

#4 Post by roberts5 » Mon Feb 13, 2006 11:43 pm

So any updates on if this works? I'm going to try to contact Lenovo.

leobag
Posts: 5
Joined: Wed Mar 08, 2006 2:45 am

#5 Post by leobag » Wed Mar 08, 2006 3:00 am

Doesn't A2DP require Bluetooth 2.0? So, the T42 and below can't really use it... right?

I would assume that the later 4.x versions of the widcomm software is pointless with the T42 and below as well - no? Is there any benefit to run the new software?

Thanks,
Leo

Doltan
Freshman Member
Posts: 71
Joined: Tue Mar 22, 2005 9:35 am
Location: Singapore

#6 Post by Doltan » Wed Mar 08, 2006 7:45 am

I think A2DP is supported from Bluetooth v1.2 onwards.

I've also been trying to get my stereo bluetooth headset to stream audio from my T43p. Wasn't successful before the update to EDR. I can pair both of them, but no sound on the headset and it disconnects by itself after a short while. I can see the bluetooth logo on the panel blinking hard tho, so it's trying to transmit, but maybe insufficient bandwidth.

After the recent upgrade to v1.2 +EDR, when I try to stream audio, I get maybe 0.5sec after few seconds of playing. Bluetooth logo also blinking hard, no auto disconnection, and my bluetooth mouse lags until not usable.

Any suggestions, or shd I try to install the latest widcomm drivers myself?
Laptop: 2668-H3A T43p

Post Reply
  • Similar Topics
    Replies
    Views
    Last post

Return to “ThinkPad T4x Series”

Who is online

Users browsing this forum: kfzhu1229 and 24 guests