<html><head></head><body><div>On Mon, 2022-01-17 at 17:46 +0000, Gary Buhrmaster wrote:</div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div>On Mon, Jan 17, 2022 at 4:34 PM glen <<a href="mailto:glenb@glenb.net">glenb@glenb.net</a>> wrote:<br></div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div>the new atsc 3.0 should be fine as that is target codec 265. that still comes down to the default though.<br></div></blockquote><div><br></div><div>While H.265 may be a target, broadcasters have<br></div><div>flexibility in their choices of codec, and during<br></div><div>testing (and make no mistake, most broadcasters<br></div><div>are still in various stages of testing, not production)<br></div><div>some have chosen interestingly. There is even one<br></div><div>using H.265 480i (yes, interlaced) for some of their<br></div><div>channels. As expected, more than a few software<br></div><div>solutions did/do not deal with interlaced H.265 (and<br></div><div>who knows about hardware decoder support, although<br></div><div>I seem to recall it was reported LG TVs did it right<br></div><div>(although that, itself, is not surprising as LG has<br></div><div>been part of many of the standards committees,<br></div><div>so they likely understand them better than some)).<br></div><div><br></div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div>i may nevertheless pick the silicondust 3.0 tuner as 3 stations have popped up in my area.<br></div></blockquote><div><br></div><div>Be aware that using the HDFX-4K requires some hoop<br></div><div>jumping in MythTV to use for ATSC 3.0 (I have heard<br></div><div>a rumor that a well qualified/experienced/talented<br></div><div>individual has sort of gotten it to work in their market,<br></div><div>but setup was, to put it mildly, not straightforward),<br></div><div>and there is no support for the ATSC 3.0 (targeted)<br></div><div>audio codec of AC-4 in any released open source<br></div><div>project, so unless passthrough works to your AC-4<br></div><div>capable A/V receiver you likely will experience the<br></div><div>sounds of silence (although, that too, may vary, as<br></div><div>some broadcasters have been reported to use AAC<br></div><div>for their ATSC 3.0 channels, because, again,<br></div><div>flexible options in the spec).<br></div><div><br></div><div>If you want to play around with the device, using the<br></div><div>the SiliconDust software apps (which even support<br></div><div>AC-4 transcoding using their own cloud based service<br></div><div>to get around device limitations) to see what is what,<br></div><div>you may be fine, but full support in MythTV for its<br></div><div>full ATSC 3.0 capability is likely some time away<br></div><div>(although the tuner should operate as a classic 4<br></div><div>tuner ATSC 1.0 device just fine in MythTV). Caveat<br></div><div>emptor.<br></div><div>_______________________________________________<br></div><div>mythtv-users mailing list<br></div><div><a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br></div><div><a href="http://email.mg.glenb.net/c/eJxNjs0KwjAQhJ-muRmy3fyYQw5efI-0u20DSStNFHx7qwgKc5lvZmAojFMko0UKZIHBGY9A0TlPhh0Q2IlV9OTOCmkAq7WWYyycO63mzOsgV25iCWwsoldoQJtBoe5Nb3D0GhxEh8Qih6W1W4eXrr8eyqm2KsuzLe0ht30-UIkpl7h-w7RO2xt-Gqd75b2KPfzb48Fv_wILej8u">http://lists.mythtv.org/mailman/listinfo/mythtv-users</a><br></div><div><a href="http://email.mg.glenb.net/c/eJxFjcsOgjAQRb8GdjYMfdlFF25c6TeQ0plCY0GFQePfS-LC5K5OzslFH1NArers0QCB1U4CBmsdarKAYBI1waE9NhJ7MEopEcNEpVLNUGjuxUxcjz7YGLWRDiPZgPLYSgdklLGQ-lbqVBc_Mj8qeara8753vmUxfXjkl7gvw06uIZc8D90lr9wR5-dGzFQv_mcdtpWWdX_9R1_B0DxQ">http://wiki.mythtv.org/Mailing_List_etiquette</a><br></div><div>MythTV Forums: <a href="http://email.mg.glenb.net/c/eJxFjMsKwyAQAL8m3ipudtV48NBL_8O4m6SQR1FT6N830ENhLsPAcMxTYkvqGdmBgLcBgZP3ga14YHCTmBTYDwZ5BEdEOqdN1o7MvMo-6l2aWmKQnLIdenEEjNwLeouYCNy1MmzUGpfWXrXDe9c_LqajnJvePm1pb32UWZX4k9tZpdRr_29fp_UzPA">https://forum.mythtv.org</a><br></div></blockquote><div>Thanks Gary. I was a aware of the bulk of the issues. My thought was the ffmpeg is not far off from getting the audio codec ac4. i have also seen references to some ffmpeg versions with some degree of ac4 compiled in. i was not planning any myth attempts with it, other than as mpeg2 turners. to sell my quattro tuner and buy this is not a big investment. anyway that's my thinking</div><div><span></span></div><img width="1px" height="1px" alt="" src="http://email.mg.glenb.net/o/eJwly9EKwyAMQNGvmW8Ts0RTH_yY2MR20HZg3WB_v8IeL5yrZW6ikdyzaAIDjhlBhTlrNAaF1CxIVp4CaoVERH6W3bYbhWWzo_rDhlsLNp5MKT4ukSlFrI0ErWYKs6ii62X_jnV87u_T-nnd__SvvvwA79EoVA"></body></html>