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MediaPortal 1
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Installation, configuration support
Noob here: Help with channel change freezing, please
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<blockquote data-quote="mm1352000" data-source="post: 1168635" data-attributes="member: 82144"><p>Mike it does indeed look like I was wrong, and that the Colossus completely stops streaming on channel change. I guess this must be something which is particular to setups involving digital audio (S/PDIF and/or HDMI audio). As previously mentioned, I know that people reported similar problems in the past, but I thought they'd been resolved by Colossus driver updates.</p><p></p><p>Unfortunately this issue is not something that I will be able to solve from our side in the short to medium term. In the meantime, reports in the <a href="https://forum.team-mediaportal.com/threads/hauppauge-hd-pvr-colossus-support.94850/" target="_blank">Colossus/HD-PVR support thread</a> do suggest that switching to analog/RCA audio should be an effective workaround. Presumably the difference from the Colossus' perspective is that an analog stream is always present ("not present" is synonymous with silence), whereas the digital audio stream can actually be "not present" [during channel change].</p><p></p><p>I'd be really interested to know if simply connecting the analog audio [without changing the channel configuration] has any effect on the situation. If not, you will need to deal with your channels as you said. Considering that you said you're a developer, you may or may not find it simplest to modify the database directly. The following SQL should do the trick:</p><p>[code]UPDATE TuningDetail SET audioSource = 5 WHERE channelType = 0;[/code]</p><p></p><p>[edit: One other thing you might try before editing your channels is to configure the STB to prefer non-DD/AC3 audio. This could make a difference because the Colossus only supports DD/AC3 in pass-through mode. Therefore if the STB is not providing audio (as it probably isn't for a certain amount of time during channel change) then the Colossus may have no choice but to stop streaming... and hence the problem. If the STB chooses non-DD/AC3 audio (eg. AAC or MPEG) then the STB will have to decode to PCM (effectively analog) for output over S/PDIF. On the Colossus side, that audio would be encoded as AAC... and therefore theoretically circumventing the problem.]</p></blockquote><p></p>
[QUOTE="mm1352000, post: 1168635, member: 82144"] Mike it does indeed look like I was wrong, and that the Colossus completely stops streaming on channel change. I guess this must be something which is particular to setups involving digital audio (S/PDIF and/or HDMI audio). As previously mentioned, I know that people reported similar problems in the past, but I thought they'd been resolved by Colossus driver updates. Unfortunately this issue is not something that I will be able to solve from our side in the short to medium term. In the meantime, reports in the [URL='https://forum.team-mediaportal.com/threads/hauppauge-hd-pvr-colossus-support.94850/']Colossus/HD-PVR support thread[/URL] do suggest that switching to analog/RCA audio should be an effective workaround. Presumably the difference from the Colossus' perspective is that an analog stream is always present ("not present" is synonymous with silence), whereas the digital audio stream can actually be "not present" [during channel change]. I'd be really interested to know if simply connecting the analog audio [without changing the channel configuration] has any effect on the situation. If not, you will need to deal with your channels as you said. Considering that you said you're a developer, you may or may not find it simplest to modify the database directly. The following SQL should do the trick: [code]UPDATE TuningDetail SET audioSource = 5 WHERE channelType = 0;[/code] [edit: One other thing you might try before editing your channels is to configure the STB to prefer non-DD/AC3 audio. This could make a difference because the Colossus only supports DD/AC3 in pass-through mode. Therefore if the STB is not providing audio (as it probably isn't for a certain amount of time during channel change) then the Colossus may have no choice but to stop streaming... and hence the problem. If the STB chooses non-DD/AC3 audio (eg. AAC or MPEG) then the STB will have to decode to PCM (effectively analog) for output over S/PDIF. On the Colossus side, that audio would be encoded as AAC... and therefore theoretically circumventing the problem.] [/QUOTE]
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Noob here: Help with channel change freezing, please
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