BSOD, software or hardware problem?

I think HDAudio.sys is the problem but I'm not sure. can somebody check my dump file ?

Here is the dump.

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck BE, {fffff880051dec8f, 306000020cf80121, fffff88009860100, b}

Probably caused by : hardware ( HdAudio!CAzWidget::SetBitsPerSample+4 )

Followup: MachineOwner
---------

0: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

ATTEMPTED_WRITE_TO_READONLY_MEMORY (be)
An attempt was made to write to readonly memory.  The guilty driver is on the
stack trace (and is typically the current instruction pointer).
When possible, the guilty driver's name (Unicode string) is printed on
the bugcheck screen and saved in KiBugCheckDriver.
Arguments:
Arg1: fffff880051dec8f, Virtual address for the attempted write.
Arg2: 306000020cf80121, PTE contents.
Arg3: fffff88009860100, (reserved)
Arg4: 000000000000000b, (reserved)

Debugging Details:
------------------


CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

BUGCHECK_STR:  0xBE

PROCESS_NAME:  audiodg.exe

CURRENT_IRQL:  0

TRAP_FRAME:  fffff88009860100 -- (.trap 0xfffff88009860100)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=fffff880051dec7f rbx=0000000000000000 rcx=fffffa8009b6bd00
rdx=0000000000000010 rsi=0000000000000000 rdi=0000000000000000
rip=fffff880051c79d8 rsp=fffff88009860290 rbp=fffffa8009b6bd00
 r8=0000000000824011  r9=fffff88000000000 r10=fffffffffffffffe
r11=fffff80002bf9e80 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei ng nz na pe nc
HdAudio!CAzWidget::SetBitsPerSample+0x4:
fffff880`051c79d8 895810          mov     dword ptr [rax+10h],ebx ds:4011:fffff880`051dec8f=8b48fffd
Resetting default scope

MISALIGNED_IP: 
HdAudio!CAzWidget::SetBitsPerSample+4
fffff880`051c79d8 895810          mov     dword ptr [rax+10h],ebx

LAST_CONTROL_TRANSFER:  from fffff80002affa22 to fffff80002a7f600

STACK_TEXT:  
fffff880`0985ff98 fffff800`02affa22 : 00000000`000000be fffff880`051dec8f 30600002`0cf80121 fffff880`09860100 : nt!KeBugCheckEx
fffff880`0985ffa0 fffff800`02a7d6ee : 00000000`00000001 00000000`00000000 fffff880`00000000 fffffa80`09b5cef0 : nt! ?? ::FNODOBFM::`string'+0x423be
fffff880`09860100 fffff880`051c79d8 : 00000000`00000000 00000000`c0000001 fffffa80`09b6bd00 fffff880`0417e682 : nt!KiPageFault+0x16e
fffff880`09860290 00000000`00000000 : 00000000`c0000001 fffffa80`09b6bd00 fffff880`0417e682 fffffa80`09619000 : HdAudio!CAzWidget::SetBitsPerSample+0x4


STACK_COMMAND:  kb

FOLLOWUP_IP: 
HdAudio!CAzWidget::SetBitsPerSample+4
fffff880`051c79d8 895810          mov     dword ptr [rax+10h],ebx

SYMBOL_STACK_INDEX:  3

SYMBOL_NAME:  HdAudio!CAzWidget::SetBitsPerSample+4

FOLLOWUP_NAME:  MachineOwner

IMAGE_NAME:  hardware

DEBUG_FLR_IMAGE_TIMESTAMP:  0

MODULE_NAME: hardware

FAILURE_BUCKET_ID:  X64_IP_MISALIGNED_HdAudio.sys

BUCKET_ID:  X64_IP_MISALIGNED_HdAudio.sys

Followup: MachineOwner
---------

It does appear that either your HdAudio driver or the actual sound hardware is at fault.

Have you changed software or hardware recently?

Regards,
Reventon