High cpu usage with BT music?

[Guest Blau]

I found that a strange problem in i900.

When i using i900 to playing music with my sony ericson HBH-DS-980, using the S2P, i found that device.exe is usage at least 25% in the task manager processes list:

The cpu loading is same when i using the samsung touch player also.

Here is my cruise with same setting and program when playing music with BT headset (DS980 also)

You can see that Cruise control the BT cpu usage more better.

But in this rom, Omnia running at 420mhz (see this in TCPMP setting screen), and Cruise its only 390mhz (TCPMP also).

Two phone using the same BT setting here:

Bitpool = 58

MaxSupportedBitPool = 80

UseJointStereo = 1

I think the bitpool registry setting not a problem with this case. Because i have tried to low down all the bit rate setting with BT, low down to 30, max for 48 its also using more than 25% cpu usage when using BT for music. (If using wire headset, its only 3%)

Maybe someone could give some advice about this?

Edited February 21, 2009 by Blau