[mythtv-users] wintv-pvr-usb2 audio clipping

[Michael T. Dean]

On 05/26/2012 11:59 PM, Rich West wrote:
> On 5/23/2012 5:04 PM, Rich West wrote:
>> On 05/22/2012 03:37 PM, Michael T. Dean wrote:
>>> On 05/22/2012 10:18 AM, Rich West wrote:
>>>> Interesting information.. thanks, Mike!
>>>>
>>>> Anyone know if there is a V4L2 UI setting within mythbackend?
>>>>
>>>> The approval factor went down a bit when the recordings from that device
>>>> started blasting everyone in the room.  I've noticed that I'm seeing a
>>>> lot of the following in dmesg, which results in the audio being reset
>>>> back to the screemingly loud and very clipped default.  So, I put a very
>>>> crude hack in to reset the audio back to a more comfortable setting
>>>> every 3 minutes and after each channel change.  However, I admit it is a
>>>> crappy hack, and it still results in the initial 3 minutes of audio
>>>> screaming in its clipped way at everyone..
>>>>
>>>> I wasn't able to find any module settings while allowed for passing any
>>>> defaults for audio.. :(
>>>>
>>>> I'm tempted to upgrade the machine, effectively undoing my move from one
>>>> of my PVR-150's to the USB PVR, to handle all of the hardware (3 PCI
>>>> PVR-150's, 5 SATA drives), but finding a motherboard with those specs
>>>> while staying on the cheap hasn't been easy. :-(
>>> On the capture card configuration in mythtv-setup for V4L (not DVB)
>>> capture devices, there's a setting to tell MythTV not to set the
>>> volume of the capture card.
>>>
>>> Do not adjust volume
>>> Enable this option for budget BT878 based DVB-T cards such as the
>>> AverTV DVB-T which require the audio volume to be left alone.
>>>
>>> (where I assume it talks about using the analog/V4L side of DVB-T
>>> cards--likely a cheap frame grabber?)
>> Thanks again!  I'll test that out this evening.  I had set the capture
>> card as an MPEG2 capture device, like the PVR-150's.
> Unfortunately, those options don't exist for the WinTV-pvr-usb2 device. :(
> Ah, well, back to the drawing board.  Perhaps it is time to upgrade my
> motherboard for my backend system after all...

Did you see 
http://www.gossamer-threads.com/lists/mythtv/users/518234#518234 ?

Mike