<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On 12 June 2013 07:40, Jean-Yves Avenard <span dir="ltr"><<a href="mailto:jyavenard@gmail.com" target="_blank">jyavenard@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi<br>
<div class="im"><br>
On 12 June 2013 00:58, Phil Wild <<a href="mailto:phil@holobyte.com.au">phil@holobyte.com.au</a>> wrote:<br>
> Hi Mythtv users,<br>
><br>
> I tried something tonight just out of interest. I went into the audio setup<br>
> and selected the AC-3 upconvert option. My frontend is connected to a Denon<br>
> receiver via HDMI.<br>
<br>
</div>no such thing as AC3 upconvert :) there's 5.0 upconvert.<br>
<div class="im"><br>
><br>
> When I did this and went through the test, all the speakers were configured<br>
> wrong (e.g. front centre was surround left etc. I thought maybe it was just<br>
> the test was wrong so I put on a movie with stereo/pro-logic audio and sure<br>
> enough, it was now wrong.<br>
><br>
> Do I have a problem somewhere? Where do I look to fix this?<br>
<br>
</div>What's your video card? a nvidia 9400 or something of that series?<br>
They have a hardware bug with channels being incorrectly ordered.<br>
<br>
Of course there's the obvious possibilities that your amp is wired wrong...<br>
<br>
There are two way you can fix it otherwise:<br>
- Create an alsa .alsarc that remap your channels differently<br>
- Force to output AC3, go into the Audio -> Advanced screen, and check StereoPCM<br>
<br>
All myth will output is 5.1 AC3 digital... this is not a lossless conversion<br>
_______________________________________________<br>
<br></blockquote><div><br></div><div style>Thanks, I'll have a look at this tonight. The amp is wired correctly and works fine with all other sources.</div><div style>My frontend is a ZOTAC IONITX version 1.</div><div style>
<br></div><div style>The reason I started fiddling is that recently, I seem to get a lot of crackling through the rear speakers (most prominently left-rear), only through mythtv. I first thought it was the speaker or amp, but everything sounds perfect with other sources. I then put it down to a bad rip but it is evident in lots of files. I did not notice any of this prior to my upgrade to 0.26. So I thought I would play with the audio settings and then noticed this issue. </div>
</div><br></div><div class="gmail_extra" style>Cheers</div><div class="gmail_extra" style><br></div><div class="gmail_extra" style>Phil</div></div>