No subject


Sun Jan 18 00:47:59 UTC 2009


controls should work for the HVR 1600.

Maybe I have that wrong...

Anyway, I took a look at the audio portion of my v4l2 settings and found
that there were some options for the audio encoding.

Here are my settings:

[mythtv at divo ~]$ v4l2-ctl --list-ctrls-menus
<snip>
       audio_sampling_frequency (menu) : min=0 max=2 default=1 value=1
                0: 44.1 kHz
                1: 48 kHz
                2: 32 kHz
       audio_encoding (menu) : min=1 max=4 default=1 value=1 flags=update
                1: MPEG-1/2 Layer II
                4: AC-3
       audio_layer_ii_bitrate (menu) : min=9 max=13 default=10 value=13
                9: 192 kbps
                10: 224 kbps
                11: 256 kbps
                12: 320 kbps
                13: 384 kbps
      audio_ac_3_bitrate (menu) : min=2 max=15 default=11 value=11
flags=inactive
                2: 48 kbps
                3: 56 kbps
                4: 64 kbps
                5: 80 kbps
                6: 96 kbps
                7: 112 kbps
                8: 128 kbps
                9: 160 kbps
                10: 192 kbps
                11: 224 kbps
                12: 256 kbps
                13: 320 kbps
                14: 384 kbps
                15: 448 kbps
</snip>

But I'm not sure if they even affect anything.  So, I think my next step is
to capture some audio and see if changing these values makes any
difference.  Any suggestions on grabbing the raw output of the capture card?
mplayer?

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Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<div class=3D"gmail_quote">On Tue, Feb 10, 2009 at 5:03 PM, David Watkins <=
span dir=3D"ltr">&lt;<a href=3D"mailto:watkinshome at gmail.com" target=3D"_bl=
ank">watkinshome at gmail.com</a>&gt;</span> wrote:<br><blockquote class=3D"gm=
ail_quote" style=3D"border-left: 1px solid rgb(204, 204, 204); margin: 0pt =
0pt 0pt 0.8ex; padding-left: 1ex;">

<div>&gt; It looks like the audio is not being properly encoded, I don&#39;=
t see very many<br>
&gt; (or any) settings for the dvb driver. &nbsp;Are there any setting cont=
rols for<br>
&gt; this card? &nbsp;Is anyone else having this issue? &nbsp;I&#39;m not e=
ven sure where to<br>
&gt; start troubleshooting this problem.<br>
<br>
</div>I don&#39;t believe you&#39;ll find any encoding settings for a DVB i=
nput.<br>
Encoding is done before the programme is broadcast.<br>
<br>
Have you tried other players on the recorded files?<br>
_______________________________________________<br>
mythtv-users mailing list<br>
<a href=3D"mailto:mythtv-users at mythtv.org" target=3D"_blank">mythtv-users at m=
ythtv.org</a><br>
<a href=3D"http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users" target=
=3D"_blank">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</a><br>
</blockquote></div><br><br><blockquote style=3D"border-left: 1px solid rgb(=
204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class=3D"gma=
il_quote">I don&#39;t believe you&#39;ll find any encoding settings for a D=
VB input.<br>


Encoding is done before the programme is broadcast.</blockquote><div><br>I&=
#39;ve done some more research... <br></div><div><br>From what I have read =
(<a href=3D"http://www.ivtvdriver.org/index.php/Cx18">http://www.ivtvdriver=
.org/index.php/Cx18</a>), the controls should work for the HVR 1600.<br>
<br>Maybe I have that wrong...<br><br>Anyway, I took a look at the audio po=
rtion of my v4l2 settings and found that there were some options for the au=
dio encoding.&nbsp; <br><br>Here are my settings:<br><br style=3D"font-fami=
ly: courier new,monospace;">
<span style=3D"font-family: courier new,monospace;">[mythtv at divo ~]$ v4l2-c=
tl --list-ctrls-menus</span><br>&lt;snip&gt;<br><span style=3D"font-family:=
 courier new,monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; audio_samplin=
g_frequency (menu) : min=3D0 max=3D2 default=3D1 value=3D1</span><br style=
=3D"font-family: courier new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;0: 44.1 kHz</span><br =
style=3D"font-family: courier new,monospace;"><span style=3D"font-family: c=
ourier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &=
nbsp;&nbsp;&nbsp; &nbsp;1: 48 kHz</span><br style=3D"font-family: courier n=
ew,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;2: 32 kHz</span><br st=
yle=3D"font-family: courier new,monospace;"><span style=3D"font-family: cou=
rier new,monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; audio_encoding (m=
enu) : min=3D1 max=3D4 default=3D1 value=3D1 flags=3Dupdate</span><br style=
=3D"font-family: courier new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;1: MPEG-1/2 Layer II</=
span><br style=3D"font-family: courier new,monospace;"><span style=3D"font-=
family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp=
;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;4: AC-3</span><br style=3D"font-family: co=
urier new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; audio_layer_ii_bitrate (menu) : min=3D9 max=3D13 default=3D10=
 value=3D13</span><br style=3D"font-family: courier new,monospace;"><span s=
tyle=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp=
; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;9: 192 kbps</span><br style=
=3D"font-family: courier new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;10: 224 kbps</span><br=
 style=3D"font-family: courier new,monospace;"><span style=3D"font-family: =
courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp; &nbsp;11: 256 kbps</span><br style=3D"font-family: couri=
er new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;12: 320 kbps</span><br=
 style=3D"font-family: courier new,monospace;"><span style=3D"font-family: =
courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp; &nbsp;13: 384 kbps</span><br style=3D"font-family: couri=
er new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp; audio_ac_3_bitrate (menu) : min=3D2 max=3D15 default=3D11 value=3D1=
1 flags=3Dinactive</span><br style=3D"font-family: courier new,monospace;">=
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;2: 48 kbps</span><br s=
tyle=3D"font-family: courier new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;3: 56 kbps</span><br s=
tyle=3D"font-family: courier new,monospace;"><span style=3D"font-family: co=
urier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &n=
bsp;&nbsp;&nbsp; &nbsp;4: 64 kbps</span><br style=3D"font-family: courier n=
ew,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;5: 80 kbps</span><br s=
tyle=3D"font-family: courier new,monospace;"><span style=3D"font-family: co=
urier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &n=
bsp;&nbsp;&nbsp; &nbsp;6: 96 kbps</span><br style=3D"font-family: courier n=
ew,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;7: 112 kbps</span><br =
style=3D"font-family: courier new,monospace;"><span style=3D"font-family: c=
ourier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &=
nbsp;&nbsp;&nbsp; &nbsp;8: 128 kbps</span><br style=3D"font-family: courier=
 new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;9: 160 kbps</span><br =
style=3D"font-family: courier new,monospace;"><span style=3D"font-family: c=
ourier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &=
nbsp;&nbsp;&nbsp; &nbsp;10: 192 kbps</span><br style=3D"font-family: courie=
r new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;11: 224 kbps</span><br=
 style=3D"font-family: courier new,monospace;"><span style=3D"font-family: =
courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp; &nbsp;12: 256 kbps</span><br style=3D"font-family: couri=
er new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;13: 320 kbps</span><br=
 style=3D"font-family: courier new,monospace;"><span style=3D"font-family: =
courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; =
&nbsp;&nbsp;&nbsp; &nbsp;14: 384 kbps</span><br style=3D"font-family: couri=
er new,monospace;">
<span style=3D"font-family: courier new,monospace;">&nbsp;&nbsp; &nbsp;&nbs=
p;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;15: 448 kbps</span><br=
><span style=3D"font-family: courier new,monospace;">&lt;/snip&gt;</span><b=
r><br>But I&#39;m not sure if they even affect anything.&nbsp; So, I think =
my next step is to capture some audio and see if changing these values make=
s any difference.&nbsp; Any suggestions on grabbing the raw output of the c=
apture card? mplayer?<br>

</div>

--000e0cd150b61d3c820462a5d7e6--


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