[pvrusb2] Hauppauge HVR-1900 - PAL-Nc, no audio

[Lorne Shantz]

Yes, I think you are thinking too deep. :) 

You just need to get the audio stream directed to the mixer and then I think you will be ok. The trick is to figure out what the configuration is. Good luck. 

--- On Sat, 4/6/13, Dermot Buckley <dermot-lists at buckley.ie> wrote:

> From: Dermot Buckley <dermot-lists at buckley.ie>
> Subject: Re: [pvrusb2] Hauppauge HVR-1900 - PAL-Nc, no audio
> To: "Communications nexus for pvrusb2 driver" <pvrusb2 at isely.net>
> Date: Saturday, April 6, 2013, 11:08 AM
> Thanks for the response Lorne.
> 
> Sound works ok on the machine (and in fact I've tried the
> device on two others - all with working audio).  
> But I'm inclined to believe that the issue is lower level
> than that anyway (note that the mpeg I've linked to has an
> mp3 48kHz audio stream, but it's simply silence).
> 
> My own guess (and it is just that), is that this could be
> one of two things:
> 
> 1. The audio tuning is wrong for PAL-N/Nc.  The "norm"
> for PAL would be either 5.5 or 6.5MHz offset from the video
> tuning.  But for PAL-N/Nc, the offset should be
> 4.5MHz.  (so for the example I gave below, with video
> at 163.25MHz, the correct audio tuning would be
> 167.75MHz).  I don't know any way to specifically check
> (or set) the audio tuning however, so I don't know how to
> check this.  I had a look through the pvrusb2 source to
> see if I could work this out, but I couldn't find anything
> relevant.
> 
> or
> 
> 2. Audio here generally has 2 audio streams (they call the
> second the "SAP" stream, I believe it's a variation on MTS
> used in NTSC).  The primary stream would generally be
> in spanish, and the second stream in english.  Possibly
> this is confusing things (but, if this is truly the issue, I
> would expect to get *some* audio, rather than just the
> current silence).
> 
> 
> Maybe I'm digging a little bit too deep here, it might be
> just something silly like the audio being switched off
> somewhere (but note that I've tried explicitly setting the
> audio input also via: v4l2-ctl -d /dev/video1
> --set-audio-input=0)
> 
> 
> On 6 Apr 2013, at 13:57, Lorne Shantz <lorne_shantz at yahoo.com>
> wrote: