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anyone have AC3/DTS passthrough working with revo 1600?

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brian at interlinx

Jun 8, 2010, 10:04 AM

Post #1 of 20 (1368 views)
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anyone have AC3/DTS passthrough working with revo 1600?

Hi.

I have a Revo 1600 connected via HDMI to my TV and while I get typical
SD TV stereo sound to play (as PCM) I cannot get AC3/DTS passthrough to
work.

In the audio settings I have my Speakers Configuration set to 5.1 and I
have Digital Output Device set to ALSA:plughw:0,3 (which is the same for
Audio Output Device -- which works fine for PCM). I also have the Dolby
Digital and DTS Audio Processing Capabilities enabled.

Now what is interesting is that I am pretty sure that the TV is
receiving the AC3 ok because there is a selector on the TV to choose how
to forward the signal out of the (TV's) SPDIF to the receiver and it has
the two choices PCM and Dolby Digital. My experience has been that when
there is no digital sound available, the Dolby Digital option is greyed
out. When I am playing a video from myth with an AC3 track, this option
is not greyed out.

But the problem is that the TV does not emit any sound from it's
built-in speakers, nor does the receiver register that it's receiving a
digital signal, or emit any sound from it's speakers. It's almost as if
the AC3 is making it to the TV but it's muted. Obviously I have checked
the mute settings on the TV.

I did search the archives about AC3/DTS passthrough on the HDMI and
found one thread about not ignoring EDID in the xorg.conf but I'm not
doing that.

For reference, here's my hardware settings:

# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0

# aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
front:CARD=NVidia,DEV=0
HDA NVidia, ALC662 rev1 Analog
Front speakers
surround40:CARD=NVidia,DEV=0
HDA NVidia, ALC662 rev1 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia,DEV=0
HDA NVidia, ALC662 rev1 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia,DEV=0
HDA NVidia, ALC662 rev1 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia,DEV=0
HDA NVidia, ALC662 rev1 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia,DEV=0
HDA NVidia, ALC662 rev1 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=NVidia,DEV=0
HDA NVidia, NVIDIA HDMI
HDMI Audio Output

# amixer
Simple mixer control 'Master',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
Playback channels: Mono
Limits: Playback 0 - 64
Mono: Playback 52 [81%] [-12.00dB] [on]
Simple mixer control 'Front',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 64
Mono:
Front Left: Playback 52 [81%] [-12.00dB] [on]
Front Right: Playback 52 [81%] [-12.00dB] [on]
Simple mixer control 'Mic',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-34.50dB] [off]
Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Mic Boost',0
Capabilities: volume penum
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 3
Front Left: 0 [0%]
Front Right: 0 [0%]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'Beep',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-34.50dB] [off]
Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch penum
Capture channels: Front Left - Front Right
Limits: Capture 0 - 31
Front Left: Capture 0 [0%] [-13.50dB] [on]
Front Right: Capture 0 [0%] [-13.50dB] [on]
Simple mixer control 'Capture',1
Capabilities: cvolume cswitch penum
Capture channels: Front Left - Front Right
Limits: Capture 0 - 31
Front Left: Capture 9 [29%] [0.00dB] [off]
Front Right: Capture 9 [29%] [0.00dB] [off]

Thots?
b.

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jyavenard at gmail

Jun 8, 2010, 5:12 PM

Post #2 of 20 (1328 views)
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Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

Hi

On 9 June 2010 03:04, Brian J. Murrell <brian [at] interlinx> wrote:
> Hi.
>
> I have a Revo 1600 connected via HDMI to my TV and while I get typical
> SD TV stereo sound to play (as PCM) I cannot get AC3/DTS passthrough to
> work.
>
> But the problem is that the TV does not emit any sound from it's
> built-in speakers, nor does the receiver register that it's receiving a
> digital signal, or emit any sound from it's speakers. It's almost as if
> the AC3 is making it to the TV but it's muted. Obviously I have checked
> the mute settings on the TV.

This is a common problem.

Very few (if any) TV have a AC3/DTS built-in decoder ; so it won't be
able to play those on the TV directly.

When you're doing a connection like:
PC -> TV -> Amp

in my experience, the TV only passthrough stereo PCM ; including over
their digital out connector nothing else. At least that's what my Sony
and Samsung TVs do.

If you want AC3/DTS passthrough, you have to connect your system like:
PC -> Amp -> TV
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brian at interlinx

Jun 8, 2010, 5:51 PM

Post #3 of 20 (1323 views)
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Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Wed, 2010-06-09 at 10:12 +1000, Jean-Yves Avenard wrote:
> Hi

Hi Jean-Yves,

Thanx much for your input on this.

> Very few (if any) TV have a AC3/DTS built-in decoder ; so it won't be
> able to play those on the TV directly.

I might be showing my ignorance here (which abounds in this whole AV
arena, so not surprising) but then how does my TV play the audio from
(clearQAM) digital cable channels, which can either be heard on the TV's
speakers or on the amp's speakers with the amp registering the input as
Dolby Digital?

Further, how can my TV play a video file that mplayer reports as having
a digital sound track:

Opening audio decoder: [liba52] AC3 decoding with liba52
dec_audio: Allocating 3840 bytes for input buffer.
dec_audio: Allocating 6144 + 65536 = 71680 bytes for output buffer.
Using SSE optimized IMDCT transform
AC3: 5.1 (3f+2r+lfe) 48000 Hz 448.0 kbit/s
A52 flags before a52_frame: 0x2A
A52 flags after a52_frame: 0xA
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, s16le, 448.0 kbit/29.17% (ratio: 56000->192000)
Selected audio codec: [a52] afm: liba52 (AC3-liba52)

via it's (the TV's) DLNA feature without an AC3[/DTS] decoder? IOW, the
TV plays this file directly, from myth's UPnP/DLNA service, not decoded
and displayed by myth.

> When you're doing a connection like:
> PC -> TV -> Amp
>
> in my experience, the TV only passthrough stereo PCM ; including over
> their digital out connector nothing else. At least that's what my Sony
> and Samsung TVs do.

Interestingly, my TV is Samsung Series 5 PN50C540
(http://www.samsung.com/us/consumer/tv-video/televisions/plasma-tv/PN50C540G3FXZA/index.idx?pagetype=prd_detail)

Also, my TV has a selector for its' SPDIF out (which goes to my amp of
course) on it to specify whether to output PCM or Dolby Digital, and the
DD option only appears to be selectable (i.e. not greyed out) when the
input is AC3 (and perhaps DTS, which I have not entered into this mix
yet) such as from clearQAM cable or Myth. And when I select Dolby
Digital, the amp does register the input has being DD. In the case of a
clearQAM cable signal, everything is fine. I can hear the sound, in DD
on the amp. In the Myth case, playing the file from which the above
mplayer output comes, the TV let's me select DD as the SPDIF format, but
the Amp doesn't seem to receive that. Additionally, when the TV is set
to output on it's own speakers, it's just silent.

> If you want AC3/DTS passthrough, you have to connect your system like:
> PC -> Amp -> TV

My amp doesn't handle HDMI. :-(

b.

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jyavenard at gmail

Jun 8, 2010, 6:35 PM

Post #4 of 20 (1345 views)
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Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

Hi

On 9 June 2010 10:51, Brian J. Murrell <brian [at] interlinx> wrote:
> I might be showing my ignorance here (which abounds in this whole AV
> arena, so not surprising) but then how does my TV play the audio from
> (clearQAM) digital cable channels, which can either be heard on the TV's
> speakers or on the amp's speakers with the amp registering the input as
> Dolby Digital?

because it only does so for 2 channels.

>
> Further, how can my TV play a video file that mplayer reports as having
> a digital sound track:
>
> Opening audio decoder: [liba52] AC3 decoding with liba52
> dec_audio: Allocating 3840 bytes for input buffer.
> dec_audio: Allocating 6144 + 65536 = 71680 bytes for output buffer.
> Using SSE optimized IMDCT transform
> AC3: 5.1 (3f+2r+lfe) 48000 Hz 448.0 kbit/s
> A52 flags before a52_frame: 0x2A
> A52 flags after a52_frame: 0xA
> Using MMX optimized resampler
> AUDIO: 48000 Hz, 2 ch, s16le, 448.0 kbit/29.17% (ratio: 56000->192000)
> Selected audio codec: [a52] afm: liba52 (AC3-liba52)

But who does the decoding here ?

and you're outputting 2 channels audio in your example

If you configure mplayer to output passthrough, you'll find yourself
in the same situation as with myth

>
> via it's (the TV's) DLNA feature without an AC3[/DTS] decoder? IOW, the
> TV plays this file directly, from myth's UPnP/DLNA service, not decoded
> and displayed by myth.
>
>> When you're doing a connection like:
>> PC -> TV -> Amp
>>
>> in my experience, the TV only passthrough stereo PCM ; including over
>> their digital out connector nothing else. At least that's what my Sony
>> and Samsung TVs do.
>
> Interestingly, my TV is Samsung Series 5 PN50C540
> (http://www.samsung.com/us/consumer/tv-video/televisions/plasma-tv/PN50C540G3FXZA/index.idx?pagetype=prd_detail)
>
> Also, my TV has a selector for its' SPDIF out (which goes to my amp of
> course) on it to specify whether to output PCM or Dolby Digital, and the
> DD option only appears to be selectable (i.e. not greyed out) when the
> input is AC3 (and perhaps DTS, which I have not entered into this mix
> yet) such as from clearQAM cable or Myth. And when I select Dolby
> Digital, the amp does register the input has being DD. In the case of a
> clearQAM cable signal, everything is fine. I can hear the sound, in DD
> on the amp. In the Myth case, playing the file from which the above
> mplayer output comes, the TV let's me select DD as the SPDIF format, but
> the Amp doesn't seem to receive that. Additionally, when the TV is set
> to output on it's own speakers, it's just silent.
>

you can hear it when it's 2 channels ...

>> If you want AC3/DTS passthrough, you have to connect your system like:
>> PC -> Amp -> TV
>
> My amp doesn't handle HDMI. :-(

use the SPDIF output then from the PC directly instead of going through your TV
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onebob at gmail

Jun 9, 2010, 1:30 AM

Post #5 of 20 (1303 views)
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Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

Hi Brian

Have you tried putting the HDMI straight into the receiver? I think it may
be a digital rights thing where one end doesn't know what the other end is
(ie it gets locked in the TV) to stop copying 8^(

HTH

David

agraham at g-b

Jun 9, 2010, 6:34 AM

Post #6 of 20 (1296 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

> But the problem is that the TV does not emit any sound from it's
> built-in speakers, nor does the receiver register that it's receiving a
> digital signal, or emit any sound from it's speakers. It's almost as if
> the AC3 is making it to the TV but it's muted. Obviously I have checked
> the mute settings on the TV.
>

Maybe you need to switch the sound card into the correct mode try:

# iecset audio off professional on

then to switch it back to PCM mode use:

# iecset audio on professional off

man iecset

Albert.

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brian at interlinx

Jun 9, 2010, 6:44 AM

Post #7 of 20 (1303 views)
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Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Wed, 2010-06-09 at 11:35 +1000, Jean-Yves Avenard wrote:
> Hi

Hey,

> because it only does so for 2 channels.

But the point is that the TV has to be doing AC3 decoding here, isn't
it? You claimed that there is no AC3/DTS decoder in the TV, but if
that's the case, how is the TV even able to play two channels from an
AC3 stream without decoding it?

> > Further, how can my TV play a video file that mplayer reports as having
> > a digital sound track:
> >
> > Opening audio decoder: [liba52] AC3 decoding with liba52
> > dec_audio: Allocating 3840 bytes for input buffer.
> > dec_audio: Allocating 6144 + 65536 = 71680 bytes for output buffer.
> > Using SSE optimized IMDCT transform
> > AC3: 5.1 (3f+2r+lfe) 48000 Hz 448.0 kbit/s
> > A52 flags before a52_frame: 0x2A
> > A52 flags after a52_frame: 0xA
> > Using MMX optimized resampler
> > AUDIO: 48000 Hz, 2 ch, s16le, 448.0 kbit/29.17% (ratio: 56000->192000)
> > Selected audio codec: [a52] afm: liba52 (AC3-liba52)
>
> But who does the decoding here ?

To be clear, the above mplayer output was provided merely as
documentation of what the audio stream in the file is. Mplayer is not
being used to read and play the file.

But to answer the question of who is doing the decoding here...

I would think it's the TV (when I select the audio to go to the TV's
speakers). To be clear, I am pointing the TV at the above video file on
a DLNA server and the TV reads it from the server (the TV has a network
cable and IP address) and plays it. If I opt for external audio it
passes the AC3 through to my receiver which displays that it is a DD
stream and it (the receiver) also displays that it's got 5.1 channels in
it.

If I opt for the TV to play the audio directly, the audio comes out on
the TV's speakers. How can the TV do that without an AC decoder?

> and you're outputting 2 channels audio in your example

I think focusing on the number of channels is a red herring. The
question was who is decoding AC3 and who is (or isn't) passing it
through to the receiver.

> If you configure mplayer to output passthrough, you'll find yourself
> in the same situation as with myth

Well, the issue is that I can't get anything on the PC (where myth is)
to successfully pass audio through the TV to the receiver. But to be
clear, I do believe the audio getting to the TV is AC3, and I know that
the TV can pass AC3 to the receiver -- if I believe what the receiver is
telling me about what audio it's receiving.

> use the SPDIF output then from the PC directly instead of going through your TV

The PC (which is a revo 1600) does not have a separate SPDIF, it has an
HDMI only.

I do wish I had something else here, "off the shelf" like a B/R (or
heck, even just a DVD) player that did HDMI out so that I could put to
rest once and for all whether the TV can passthrough the AC3/DTS, as I
really do believe the issue here is at the PC, not the TV. But really,
I don't want a separate DVD player. I want Myth to do that too[1], so I
am reluctant to go out and buy one just to do this test.

b.

[1] Although, with all of the recent shenanigans with the media
companies putting out DVDs that violate the standards as some form of
pseudo-copy protection I am becoming less and less convinced that this
is actually an achievable goal.

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brian at interlinx

Jun 9, 2010, 6:52 AM

Post #8 of 20 (1291 views)
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Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Wed, 2010-06-09 at 09:30 +0100, OneBob wrote:
> Hi Brian

Hi,

> Have you tried putting the HDMI straight into the receiver?

No can do. The receiver doesn't have HDMI, just SPDIF.

> I think it may be a digital rights thing where one end doesn't know
> what the other end is (ie it gets locked in the TV) to stop copying
> 8^(

I will be pissed as all hell if that is the case. I'm sick and tired of
all this DRM crap. Really, though, isn't the situation that a protected
path is only supposed to be configured if the source end asserts rights?
Shouldn't the lack of such an assertion (which I sure hope my PC is not
doing) mean that the path should be open?

b.

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raymond at wagnerrp

Jun 9, 2010, 6:59 AM

Post #9 of 20 (1298 views)
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Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On 6/9/2010 09:52, Brian J. Murrell wrote:
> On Wed, 2010-06-09 at 09:30 +0100, OneBob wrote:
>
>> I think it may be a digital rights thing where one end doesn't know
>> what the other end is (ie it gets locked in the TV) to stop copying
>> 8^(
>>
> Really, though, isn't the situation that a protected
> path is only supposed to be configured if the source end asserts rights?
>

Correct. The video card drivers will only attempt to use HDCP if they
are trying to output copy protected content, which will only occur on a
Windows system. SPDIF doesn't support any form of encryption to speak
of anyway.

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jyavenard at gmail

Jun 9, 2010, 7:54 AM

Post #10 of 20 (1293 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

Hi

On 9 June 2010 23:52, Brian J. Murrell <brian [at] interlinx> wrote:
> I will be pissed as all hell if that is the case. I'm sick and tired of
> all this DRM crap. Really, though, isn't the situation that a protected
> path is only supposed to be configured if the source end asserts rights?
> Shouldn't the lack of such an assertion (which I sure hope my PC is not
> doing) mean that the path should be open?

My parents have a TV ; it only pass audio to the external amplifier
(via hdmi) if the volume on the TV is set to 0 (not muted, volume set
to the minimum)...

But still, it only ever pass stereo too ; be it via the hdmi output or
the spdif (optical) cable
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onebob at gmail

Jun 10, 2010, 3:04 AM

Post #11 of 20 (1259 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

Hi Brian (and all)

I struggled for a long time firstly with an MSI Media Live with HDMI > SONY
LCD > SPDIF > Receiver, which equaled no go and for a long time assumed it
was the MSI not outputing 5.1.

Then I got a ZOTAC ATOM board so I could use VDPAU for the hi def stuff
properly (anything with 5.1 like Jools Holland would stutter on MSI) and
knew pretty much that a standard install of .22 should just work, but still
it didn't work, so I got a new receiver (Marantz - lovely clean sound) with
HDMI inputs, sent the new MYTH/FE into the RECEIVER via HDMI and wow 5.1 in
glorious .... well 5.1!

That was my experience so I think for whatever reason the TV would not pass
5.1 down the SPDIF?

Although I confess I've not tried using it the old way even though the SPDIF
is there for the 'live' TV sound......

HTH (this was a quick brain dump so apologies for grammar etc.,)

David

PS By the way while I'm here can I thank all of the MythTV people for a
great system

PPS I'm about to merge my SD/BE (.19) & HD/BE (.21+) into one new one (.23)
so maybe say a little prayer for me......

brian at interlinx

Sep 1, 2010, 5:42 AM

Post #12 of 20 (991 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Tue, 2010-06-08 at 13:04 -0400, Brian J. Murrell wrote:
> Hi.
>
> I have a Revo 1600 connected via HDMI to my TV and while I get typical
> SD TV stereo sound to play (as PCM) I cannot get AC3/DTS passthrough to
> work.

To followup on this old thread, for the sake of anyone coming across it
in the future, I have resolved my issue and now have audio working as I
want it which is:

+------+ +----+ +----------+
| Acer |---HDMI---| TV |---optical/toslink----| Receiver |
| Revo | +----+ +----------+
+------+

And receiving full Dolby Digital 5.1 (or 2.0 for content recorded from
digital cable, but it is DD and not PCM!) content on the Receiver. I
have not (yet) been able to get DTS to pass through, but I've only had
the set a day and TBH, if I never got DTS to pass through and just ended
up re-encoding DTS to DD, I wouldn't shed a tear over it. To me, (the
debates about DTS vs. DD aside) passing through DTS only provides the
benefit of not spending cycles re-encoding something I don't need to.

So in the end the entire problem was with the Samsung TV. It just
refused to pass non-hdcp-protected DD through.

Conspiracy theorists would probably come up with some interesting
scenarios why this is, but I tend not to attribute to evil that which I
can attribute to laziness and incompetence.

I'd tend to think that Samsung simply doesn't acknowledge that AC3 can
actually come from a source that does not assert a "do not copy" HDCP
flag (and just block all AC3) on it and further, they fail to test that
use-case in their QA cycles.

b.

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Douglas_Peale at comcast

Sep 1, 2010, 10:49 AM

Post #13 of 20 (979 views)
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Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On 09/01/2010 05:42 AM, Brian J. Murrell wrote:
> On Tue, 2010-06-08 at 13:04 -0400, Brian J. Murrell wrote:
>> Hi.
>>
>> I have a Revo 1600 connected via HDMI to my TV and while I get typical
>> SD TV stereo sound to play (as PCM) I cannot get AC3/DTS passthrough to
>> work.
>
> To followup on this old thread, for the sake of anyone coming across it
> in the future, I have resolved my issue and now have audio working as I
> want it which is:
>
> +------+ +----+ +----------+
> | Acer |---HDMI---| TV |---optical/toslink----| Receiver |
> | Revo | +----+ +----------+
> +------+
>
> And receiving full Dolby Digital 5.1 (or 2.0 for content recorded from
> digital cable, but it is DD and not PCM!) content on the Receiver. I
> have not (yet) been able to get DTS to pass through, but I've only had
> the set a day and TBH, if I never got DTS to pass through and just ended
> up re-encoding DTS to DD, I wouldn't shed a tear over it. To me, (the
> debates about DTS vs. DD aside) passing through DTS only provides the
> benefit of not spending cycles re-encoding something I don't need to.
>
> So in the end the entire problem was with the Samsung TV. It just
> refused to pass non-hdcp-protected DD through.
>
> Conspiracy theorists would probably come up with some interesting
> scenarios why this is, but I tend not to attribute to evil that which I
> can attribute to laziness and incompetence.
>
> I'd tend to think that Samsung simply doesn't acknowledge that AC3 can
> actually come from a source that does not assert a "do not copy" HDCP
> flag (and just block all AC3) on it and further, they fail to test that
> use-case in their QA cycles.
>
> b.
>

It is my experience (SIR-T165) that Samsung is incompetent at firmware.
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brian at interlinx

Sep 1, 2010, 10:57 AM

Post #14 of 20 (976 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Wed, 2010-09-01 at 08:42 -0400, Brian J. Murrell wrote:
> I have resolved my issue and now have audio working as I
> want

Wow. I can't believe I didn't say specifically how I resolved it.

I took the Samsung (PN50C540) back to the store and brought home an LG
50PKK550.

Samsung, FWIW, were entirely useless at even understanding the problem
let alone resolving it. Only one person, the locally dispatched service
rep. even made a hint of the problem being a "copy protection" (he
mentioned "CopyGuard") one.

Everyone I talked to at their "help desk" (yeah, I know, script
readers), had no clue and thought that "yeah, that should work" -- even
supervisor level staff. Useless. One rep., a supervisor even. started
telling me how my installing a new one of their own firmwares would void
my warranty. Imagine, voiding my warranty for installing their own
firmware update. Did I mention useless yet?

I will definitely think 2, nay, 3 or more times about buying anything
else with a Samsung label on it.

b.

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mythtv at derdev

Sep 1, 2010, 11:04 AM

Post #15 of 20 (979 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Wed, 01 Sep 2010 13:57:51 -0400, "Brian J. Murrell"
<brian [at] interlinx> wrote:
> On Wed, 2010-09-01 at 08:42 -0400, Brian J. Murrell wrote:
>> I have resolved my issue and now have audio working as I
>> want
>
> Wow. I can't believe I didn't say specifically how I resolved it.
>
> I took the Samsung (PN50C540) back to the store and brought home an LG
> 50PKK550.
>
(snip)
> I will definitely think 2, nay, 3 or more times about buying anything
> else with a Samsung label on it.
>
> b.

OT: Just in time advice, I need to replace a 46" Sharp LCD that a
neighbor girl hurled a WIIMote into. Yes, it does happen. Will avoid
Samsung contenders for replacement.

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tmbomber at gmail

Sep 2, 2010, 10:02 AM

Post #16 of 20 (959 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Wed, Sep 1, 2010 at 2:04 PM, Dave Richardson <mythtv [at] derdev> wrote:
> On Wed, 01 Sep 2010 13:57:51 -0400, "Brian J. Murrell"
> <brian [at] interlinx> wrote:
>> On Wed, 2010-09-01 at 08:42 -0400, Brian J. Murrell wrote:
>>> I have resolved my issue and now have audio working as I
>>> want
>>
>> Wow. I can't believe I didn't say specifically how I resolved it.
>>
>> I took the Samsung (PN50C540) back to the store and brought home an LG
>> 50PKK550.
>>
> (snip)
>> I will definitely think 2, nay, 3 or more times about buying anything
>> else with a Samsung label on it.
>>
>> b.
>
> OT: Just in time advice, I need to replace a 46" Sharp LCD that a
> neighbor girl hurled a WIIMote into. Yes, it does happen. Will avoid
> Samsung contenders for replacement.
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>

For all you Samsung TV owners out there...

Just last week I figured out how to get my Revo 1600 working with
pass-through audio.

Samsung lets you "EDIT" the name of your input sources. It turns out
"EDIT" means more than changing just the name, they change how the TV
works based on the what you name the input stream. The default setting
didn't work.

"EDITING" the HDMI1 input name and changing it to "PC" got everything working.

< sarcasm >This is obviously some meaning of the term "EDIT" that I
was heretofore unaware of.< /sarcasm >
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lynchmv at gmail

Sep 2, 2010, 10:26 AM

Post #17 of 20 (954 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Thu, Sep 2, 2010 at 1:02 PM, Paul Kidwell <tmbomber [at] gmail> wrote:
> For all you Samsung TV owners out there...
>
> Just last week I figured out how to get my Revo 1600 working with
> pass-through audio.
>
> Samsung lets you "EDIT" the name of your input sources. It turns out
> "EDIT" means more than changing just the name, they change how the TV
> works based on the what you name the input stream. The default setting
> didn't work.
>
> "EDITING" the HDMI1 input name and changing it to "PC" got everything working.
>
> < sarcasm >This is obviously some meaning of the term "EDIT" that I
> was heretofore unaware of.< /sarcasm >

/me puts this on the list of things to do when I get home

Thanks for the tip. Now, if this works, I'll have to re-train the
wife to go to PC instead of PVR-STB.
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brian at interlinx

Sep 2, 2010, 10:59 AM

Post #18 of 20 (956 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Thu, 2010-09-02 at 13:02 -0400, Paul Kidwell wrote:
> For all you Samsung TV owners out there...
>
> Just last week I figured out how to get my Revo 1600 working with
> pass-through audio.

Have you tried both DD and DTS?

> Samsung lets you "EDIT" the name of your input sources.

Yup.

> It turns out
> "EDIT" means more than changing just the name, they change how the TV
> works based on the what you name the input stream.

Right. IIRC, one of the things that setting to "PC" did was to elminate
all overscan.

> "EDITING" the HDMI1 input name and changing it to "PC" got everything working.

Damn damn damn damn. Certainly it's not your fault Paul, but I sure
wish somebody'd have posted this back when I created this thread. It
would have saved me a ton of grief and returning what (apart from this
particular issue, and the generally cluelessness of their helpdesk
staff) I think is all-in-all a better TV than the one I got in return
for it. I really don't think I would consider going back to that store
and undoing this exchange they were so gracious to do, months after I
bought that Samsung.

> < sarcasm >This is obviously some meaning of the term "EDIT" that I
> was heretofore unaware of.< /sarcasm >

And really, is completely stupid. You only pass-through digital audio
if the "label" says it's a PC? Freakin' stupid, stupid, stupid.

b.

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lynchmv at gmail

Sep 2, 2010, 3:58 PM

Post #19 of 20 (942 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Thu, Sep 2, 2010 at 1:02 PM, Paul Kidwell <tmbomber [at] gmail> wrote:
>
> For all you Samsung TV owners out there...
>
> Just last week I figured out how to get my Revo 1600 working with
> pass-through audio.
>
> Samsung lets you "EDIT" the name of your input sources. It turns out
> "EDIT" means more than changing just the name, they change how the TV
> works based on the what you name the input stream. The default setting
> didn't work.
>
> "EDITING" the HDMI1 input name and changing it to "PC" got everything working.
>

Was this just for HDMI1 or should it work for other inputs? Also,
care to share your MythTV audio setup options (Utilities/Setup > Setup
> General > 4th screen I think)?
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tmbomber at gmail

Sep 7, 2010, 7:08 AM

Post #20 of 20 (911 views)
Permalink

Re: anyone have AC3/DTS passthrough working with revo 1600? [In reply to]

On Thu, Sep 2, 2010 at 6:58 PM, Michael Lynch <lynchmv [at] gmail> wrote:
> Was this just for HDMI1 or should it work for other inputs? Also,
> care to share your MythTV audio setup options (Utilities/Setup > Setup
> General > 4th screen I think)?

Unsure what effect changing the name on other inputs has. I need to
experiment with that a bit. I have a hacked original Xbox plugged into
one of the component inputs running XBMC4Xbox. The video is black and
white for some reason, but ok, if i switch over to a composite cable
and use the AV1 input.

And alas, I'm afraid my FE setup won't help you much. I'm using a Revo
1600 running XBMCFreak's version of XBMC and using XBMC's native
support for MythTV.
(audio set to "hdmi", audio output device and pass through audio were
set to "plug:hdmi" in system->system->audio setup.)

His distro can be found here:

http://www.xbmcfreak.nl/?lang=en
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