Re: [Bluez-users] headset and input noise

[walt shekrota <penguinacity@yahoo.com>]

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Hi,
 
 may sound silly but did you mute 'line' in alsamixer? If you have a device it can
 cause static. I have a TV card. You may have a capture builtin your laptop.
 
 -Walt

Adam Dixon <adamtdixon@gmail.com> wrote: Hello All.

I have bluetooth going on my laptop, and have got btsco working with
my X3 micro bt headset. However I get mass static / noise from the
input randomly.
I have reproduced on skype, twinkle and now on arecord. So currently I
dont want to use it for the phone (its intended use).

I have searched the list, and found some people having reference the
'noise', but found no clear fix.

I followed a guide to get everything installed and this is how I bring
up my headset;
hcitool cc 00:0F:79:04:7A:11
modprobe snd_bt_sco  (not done if already loaded)
hciconfig hci0 voice 0x0060
btsco 00:0F:79:04:7A:11

Has anyone had this problem and know how to get around it? As I am
very happy with it other wise. If anyone could lend a hand that would
be great.

Adam



Some information;

btsco v0.5c

uname -a
Linux dixon 2.6.20-1.2933.fc6 #1 SMP Mon Mar 19 11:00:19 EDT 2007
x86_64 x86_64 x86_64 GNU/Linux

hciconfig -a
hci0:   Type: USB
        BD Address: 00:1A:6B:1E:E9:A6 ACL MTU: 384:8 SCO MTU: 64:8
        UP RUNNING PSCAN
        RX bytes:6909425 acl:20 sco:135398 events:111 errors:0
        TX bytes:6889503 acl:18 sco:135074 commands:57 errors:5
        Features: 0xff 0xff 0x9f 0xfe 0x9b 0xf9 0x00 0x80
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: 'dixon-0'
        Class: 0x120104
        Service Classes: Networking, Object Transfer
        Device Class: Computer, Desktop workstation
        HCI Ver: 2.0 (0x3) HCI Rev: 0xdd2 LMP Ver: 2.0 (0x3) LMP Subver: 0xdd2
        Manufacturer: Cambridge Silicon Radio (10)

hciconfig hci0 revision
hci0:   Type: USB
        BD Address: 00:1A:6B:1E:E9:A6 ACL MTU: 384:8 SCO MTU: 64:8
        Build 3538
        Chip version: BlueCore4-External
        Max key size: 56 bit
        SCO mapping:  HCI

hcitool scan
Scanning ...
        00:0F:79:04:7A:11       X3 micro

 hcitool info 00:0F:79:04:7A:11
Requesting information ...
        BD Address:  00:0F:79:04:7A:11
        Device Name: X3 micro
        LMP Version: 1.2 (0x2) LMP Subversion: 0x610
        Manufacturer: Cambridge Silicon Radio (10)
        Features: 0xfc 0xff 0x0f 0x00 0x08 0x08 0x00 0x00
                   
                  
  
                    
                 
 
 
                 

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