new user with many problems

[mvallevand]

>@three6zerocool it sounds like your tuning batch file needs the delay.  I have this problem when tuning my hdpvr too in AC3 mode.  v4 had some tuning delays but I use Linux now and I >don't know if they are in v5

>Martin


I created a batch script to delay the channel changing,  but then discovered the two settings I use in Kodi PVR addon, and also a lot of experimenting with values for timeshifting in the nextpvr addon. Currently, I do not use a batch script at all, and things are working great for the Kodi side.

Of course those settings, from what you have informed me off are likely not doing anything tangible,  so I guess I have to put it down to Sub's stellar coding in improving the Kodi Matrix addon, and improvements in Kodi Matrix itself, by that projects team, and indeed improvements to the NextPVR 5 backend.

Sub's registry suggestion certainly works, but I think it was at his suggestion to change it originally, so I could get AC3 audio on TVONE, Two, and Three.

Am I correct in surmising that the two 'eng' audio streams broadcast , that one is AC3 5.1 surround, and that the other track is what?....PCM, stereo, mono or something else.
ie. I want the best audio., so surround if it is offered for a channel, that is desirable.

I actually made all the Kodi pvr.nextpvr code changes for Matrix. 

My point is those Kodi changes won't impact NextPVR's tuning so if you don't have them in the tuning script, after sub makes the changes you still might have HDPVR troubles.  My experience in both and Linux and Windows is when the HDVPR is in AC3 mode when my STB transitions from channel to channel the AC3 stream gets interrupted and the HDPVR firmware hangs if is being read.  In AAC mode  this is not an issue.  Your experience might be different.

Multiple audio streams can have a mix of types, they typically could be another AC-3, AAC, HE-AAC or MPEG2 audio streams.  If it is another AC-3 stream it could be different audio channels, there is no guarantee that 5:1 is preferred over 2:1.  There are other possibilities too, different languages, different languages on Left and Right changes, AC-4 etc.

Martin

[sub]

As Martin says, when it comes to an HDPVR style device, it is definitely preferrable to have any set top boxes just output PCM audio all the time, and rely on the HDPVR using AAC encoding (rather than getting AC3 pass through from some channels and not from others). These devices have issues switching between these two audio formats, with timeline resets etc in the stream. Otherwise you'll have to try tweaking channel delays etc (to try avoiding the bit of the stream coming from the device where the timeline reset happens).

While I'm a video snob, and prefer my H264 or HEVC video, I'm a lot less concerned about audio. If it were me, I'd be happy to stick with stereo AAC and avoid the complications that come from trying to have my HDPVR switch between AC3 and AAC. Even when you do get channels with AC3 5.1, most of the content they're playing is just upmixed stereo anyway.

[three6zerocool]

< I actually made all the Kodi pvr.nextpvr code changes for Matrix. 

Oh, so it's your stellar coding!

>My point is those Kodi changes won't impact NextPVR's tuning so if you don't have them in the tuning script, after sub makes the changes you still might have HDPVR troubles.  My >experience in both and Linux and Windows is when the HDVPR is in AC3 mode when my STB transitions from channel to channel the AC3 stream gets interrupted and the HDPVR >firmware hangs if is being read.  In AAC mode  this is not an issue.  Your experience might be different.

Yes, my STB is a MySkyHDi  box,  and it has audio options for PCM and Dolby Digital over HDMI.
Am I correct in assuming that the PCM would be also 5.1?  The STB also has optical digital output too.

>Multiple audio streams can have a mix of types, they typically could be another AC-3, AAC, HE-AAC or MPEG2 audio streams.  If it is another AC-3 stream it could be different audio ?>channels, there is no guarantee that 5:1 is preferred over 2:1.  There are other possibilities too, different languages, different languages on Left and Right changes, AC-4 etc.

AC4! (gulp)     

[mvallevand]

Am I correct in assuming that the PCM would be also 5.1?  The STB also has optical digital output too.

PCM can have multiple channels, that is how FLAC audio files can deliver so many audio formats, but I would expect your STB only delivers 2:0  which the HDPVR needs to convert to AAC 2:0.

Martin

[sub]

You're only going to get stereo AAC out of the audio encoder on your HDPVR style device.

Yes, I know you'd like 5.1 audio. As described above though, there is issues when using these devices in a setup where you mix AC3 and AAC. Technology has a way of never quite providing us exactly what we'd hoped for.