AC3 downmix plugin

[iBoston]

Well, i posted on another forum of a problem i was having. The 12000 transponder on 101ku has their AC3 signal whacked out. Been like that for awhile. My high end Audio receiver has much more pronounced glitches because it resets the audio when the glitch comes through. It's so annoying that i cannot listen to it. I figured out that if i turn on AC3 down-mix for the channels on the transponder, the audio glitches are resolved within the satellite receiver and sends a clean AC3 signal to the audio receiver. Now, there are still glitches, but its not very noticeable and am able to listen without being annoyed.

The problem is, its a pain to remember, oh for this channel i need AC3 pass-thru off, and this on, and run through the remote commands to enable/disable. I want 99.9% of the channels to be AC3 down-mix OFF. Only for the channels on this transponder do i want it On. Remedy. I wrote a E2 plugin that is very user friendly that i set the default mode, and then add the channels that i want opposite the default value, and the satellite receiver automatically turns AC3 down-mix on/off. Of course, its smart enough to only change the setting if it needs to.

 

[cyberham]

Can we download this plugin online?

 

[iBoston]

Can we download this plugin online?

Not as of yet, and im not entirely sure it will work with open implementations of E2 as it is, as there are subtle differences. Im using a real DreamBox which uses the DreamOS. There might be little variances where ill have to make modifications to the program to work, but i'd need someone that would be willing to troubleshoot. However before that, i do have a Open E2 box that i have. I plan on installing the plugin onto that box to see if it works, and if not, ill make the changes needed. If i can get it to work on that box, then im pretty sure it would work with 90% of all systems.

 

[iBoston]

Can we download this plugin online?

Well, good news. I ran the AC3 plugin on an OpenATV installation, and it worked like a charm. How familiar are you with your E2 box? Are you able to SFTP/SSH into your box? PM me and we can discuss further...

 

[iBoston]

Found two resolutions to the AC3 glitching :

Setup the channel as a RELAY channel, then the audio is perfect.

In another words, you set up an IPTV channel, that uses the following url :

http://[ip of e2]:[port (mine is 8001) / Channel Service Reference.

example :

http://IP:8001/1:0:1:2:1:0:816AEE0:0:0:0:

The other Option is just start a record. Then go into your movie list, and start watching the recording. You don't have to wait more then a couple seconds to start watching the recording, and since its recording, it will keep playing the stream. When your done watching the channel, stop the recording.

 

[cyberham]

The recording trick does work to clean up the audio so it sounds good.

I have many folders of IPTV channels, but these were all set up using the iptv-org playlists plugin. On an Edision Mio+, I forget (or never knew) how to set up just one IPTV channel.

 

[iBoston]

The recording trick does work to clean up the audio so it sounds good.

I have many folders of IPTV channels, but these were all set up using the iptv-org playlists plugin. On an Edision Mio+, I forget (or never knew) how to set up just one IPTV channel.

I use dreambox Edit 7.2.10 - That's what i use to modify my boutiques/favorites, and allows you to manually create a IPTV channel on the fly as a channel or edit the url/name of the IPTV channel.

The reason this works, apparently its a glitch in the DVB hardware. It is too strict, and the Gstreamer (which is whats used if your watching a stream or a file) is much more forgiving. I'm using a broadcom Si2166B and Si2166D tuner cards, so i suspect anyone using the same tuner card in their receivers would encounter the problem. Im curious if people using the FBC tuners have the same issue.

 

[SDA_FL_USA]

Found two resolutions to the AC3 glitching :

Setup the channel as a RELAY channel, then the audio is perfect.

In another words, you set up an IPTV channel, that uses the following url :

http://[ip of e2]:[port (mine is 8001) / Channel Service Reference.

example :

http://IP:8001/1:0:1:2:1:0:816AEE0:0:0:0:

The other Option is just start a record. Then go into your movie list, and start watching the recording. You don't have to wait more then a couple seconds to start watching the recording, and since its recording, it will keep playing the stream. When your done watching the channel, stop the recording.

Thanks, Yeah timeshift seems to work to fix the audio glitch also.

 

[cyberham]

This problem may now be fixed in TNAP 7. I can't detect the symptom anymore.

Check here.

 

[iBoston]

This problem may now be fixed in TNAP 7. I can't detect the symptom anymore.

Check here.

I don't think that is the specific bug to the problem. As if it was detected as LPCM, then there would be no audio, and it mentions specifically to ATSC broadcasts. You might inquire and see if there might be another answer or bug fix that would account for this specific situation. But, I'm glad to hear your issue has resolved...

 

[cyberham]

You're right. Today I hear the subtle symptom of ripply audio. Back to using the timeshift mode. It's an easy workaround to use.

 

[iBoston]

You're right. Today I hear the subtle symptom of ripply audio. Back to using the timeshift mode. It's an easy workaround to use.

For me the worst channel is NHK. I also really notice the audio glitches on that channel. Sorry to hear your problem wasn't resolved as you first thought.

 

[monkeybob]

This plugin sounds like a massive time-saver for anyone dealing with those annoying transponder audio glitches, especially since manually toggling pass-thru channel by channel gets old real fast. Thanks for putting this together and sharing it with the community!

 

[cyberham]

Listening to NHK after doing the latest TNAP 7 update. I don't hear any glitching using my Edision osmio4k+. The audio sounds as good as my GT Media V9 receiver.