Topic: TrueHD to LPCM (Read 6905 times)

h5tuu · « **on:** April 04, 2013, 01:06:51 pm »

Hi,

I've just discovered this amazing bit of software, however I am having a little problem.

My AV processor does not support Dolby TrueHD but does support DTS-HD.

Now I have no problem sending the processor a LPCM signal so I can use the softwares bass management etc.

I have installed the dtsdecoder dll file just fine, I have then played a bluray (as BDMV folder) with the software and confirmed the signal is being sent as the audio path shows dts-hd and 8 channels (when playing a 7.1 mix).

However when I play a 7.1 TrueHD file the audio path shows ac3 and 6 to 8 channel conversion, this to me indicates the signal being sent is the 640kbps dolby digital stream?

I am using the ASIO4ALL driver and have the output channels within the options set to 7.1.

Any ideas?

Thanks.

fitbrit · « **Reply #1 on:** April 04, 2013, 01:54:44 pm »

While the video file is playing hit the up or down arrows a couple of times until you see the list of possible audio tracks (if there is more than one). Perhaps MC is defaulting to an AC3 soundtrack. If you don't see a list of audio tracks in the OSD, it means there is only one.

jmone · « **Reply #2 on:** April 04, 2013, 02:42:07 pm »

It sounds like you are Bitstreaming (which if so you don't need dtsdecoderdll.dll) and of course you will not get the TrueHD sent). Have a look at Tools --> Options --> Audio --> Bitstreaming and try a few options like "None" which then should decode everything to LPCM and send to your receiver or go into the Custom option and select what you want Bitstreamed Vs Decoded.

h5tuu · « **Reply #3 on:** April 04, 2013, 02:46:39 pm »

Thanks for the replys chaps.

To clarify, I am not bitstreaming

. I would rather send the LPCM signal.

Also my blurays are backed up using DVDFab, I remove all audio tracks apart from the HD stream to keep size down, I have also tried using a disc but get the same problem...

I have no idea what else to try?

jmone · « **Reply #4 on:** April 04, 2013, 02:51:10 pm »

Mmm can you for "fun" try these settings:
Tools --> Options --> Audio --> Bitstreaming = None
Tools --> Options --> Audio --> Bitstreaming = WASAPI - Event Style

What physical connection do you have?

h5tuu · « **Reply #5 on:** April 04, 2013, 03:07:24 pm »

I'm using HDMI.

Right I've tried that suggestion, I get a warning message that says.

Something went wrong with playback.

Details:
Playback could not be started on the selected audio output.

The ausio format may not be supported by your hardware. You can use DSP studio to change the output to a compatible format.

Also, make sure that your system has a valid sound playback device and that it is properly configured in playback options.

I should point out, this is when playing a 7.1 TrueHD file.

jmone · « **Reply #6 on:** April 04, 2013, 03:11:37 pm »

What OS are you using - Win7 or XP

h5tuu · « **Reply #7 on:** April 04, 2013, 03:18:24 pm »

Windows 7.

jmone · « **Reply #8 on:** April 04, 2013, 03:21:51 pm »

Ok - how about (for now) try each one of these independently.

DSP = Check the "Output Format" (to turn it on) and change the Channels to the # you have.

Output Mode Settings = Check Present 24-Bit data in 32-Bit package

Output Mode = Direct Sound

fitbrit · « **Reply #9 on:** April 04, 2013, 03:30:41 pm »

What is the source of your HDMI output?

Video card e.g. AMD/ATi or nVidia
Built in graphics e.g. Intel HD3000, HD4000
Sound card eg ASUS, Auzentech

Finally, some screen shots of your Audio output setup, DSP etc. in MC would be useful. Personally, depending on your hardware, I'd ditch the ASIO4ALL and use WASAPI Event style as a start.

h5tuu · « **Reply #10 on:** April 04, 2013, 03:32:55 pm »

I've tried the suggestions but get the same result as ASIO4ALL.

I'm using a Radeon HD5450 card.

I will try and grab some screen shots in a minute.

h5tuu · « **Reply #11 on:** April 04, 2013, 03:49:48 pm »

Hopefully these images will help?

jmone · « **Reply #12 on:** April 04, 2013, 04:19:20 pm »

Ahhh it says it is an eac3 track which is DD+ not AC3 (commonly used on HD-DVDs). Are you sure this track is TrueHD? Can you post a Media Info shot?

jmone · « **Reply #13 on:** April 04, 2013, 04:21:36 pm »

By the way - once this is all working I'm going to recommend you use WASAPI as in Win7 there is no advantage using ASIO.

h5tuu · « **Reply #14 on:** April 04, 2013, 04:31:19 pm »

I've attached a txt file with the media info on, hopefully this will help..

mojave · « **Reply #15 on:** April 04, 2013, 04:32:03 pm »

Quote from: jmone on April 04, 2013, 04:21:36 pm

By the way - once this is all working I'm going to recommend you use WASAPI as in Win7 there is no advantage using ASIO.

There are advantages to using ASIO, but not ASIO4ALL which is just kernel streaming. I don't think any receiver accepts ASIO anyway.

jmone · « **Reply #16 on:** April 04, 2013, 04:48:04 pm »

When you play the video, "right click on it --> streams" and what audio streams to you see?

jmone · « **Reply #17 on:** April 04, 2013, 04:50:52 pm »

FYI - here is what it looks like for me on the Matrix (I don't have your disc to check)

h5tuu · « **Reply #18 on:** April 04, 2013, 05:56:23 pm »

Here you go...

Its extremely strange.

jmone · « **Reply #19 on:** April 04, 2013, 07:05:12 pm »

I'm going it is a malformed mux as Media Info reads the meta data while MC when playing is reporting what the streams really are.... and in this case it seems to be a EAC3 stream not TrueHD. You could try having a look at this file in either EAC3TO or tsMuxer....

fitbrit · « **Reply #20 on:** April 04, 2013, 09:16:22 pm »

Also, do you have any other files that you think are TrueHD 7.1?

jmone · « **Reply #21 on:** April 04, 2013, 09:32:17 pm »

...also if you cut of a 30sec sample from the start and upload it we could have a look at the file.

h5tuu · « **Reply #22 on:** April 05, 2013, 12:55:26 pm »

Just to confirm, I have played the file with my Oppo BluRay player, this confirms the TrueHD stream and also the fact its a 7.1 mix. My audio processor also receives 7.1 channels.

I will upload a small sample of the file shortly.

h5tuu · « **Reply #23 on:** April 05, 2013, 01:49:43 pm »

Test file..

https://www.dropbox.com/s/0x2aitd8smmizne/test.m2ts

jmone · « **Reply #24 on:** April 05, 2013, 03:35:08 pm »

Well - it plays correctly for me as a True HD and DD track (see Pic)!

Can you please post your direct show filter settings on the playing window "Right Click --> DirectShow Filters --> Copy Graph Info to Clipboard" and past it here. Mine is as follows and inparticular I'm looking to see you have Filter 'LAV Splitter (auto-configured)' and 'LAV Audio Decoder (auto-configured)' being used.

Code: [Select]

Filter Graph Info:

    Filter 'JRiver Audio Renderer'
        CLSID: {A4002F8E-510F-442C-8AD3-F9C7B23FB394}
        Host: 
        Input Pin 'In'
            Connected to pin 'Output' of filter 'LAV Audio Decoder (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx

    Filter 'madVR'
        CLSID: {E1A8B82A-32CE-4B0D-BE0D-AA68C772E423}
        Host: C:\Users\Mum and Dad\AppData\Roaming\J River\Media Center 18\Plugins\madvr\madvr.ax
        Input Pin 'Input'
            Connected to pin 'Output' of filter 'LAV Video Decoder (auto-configured)'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2

    Filter 'LAV Video Decoder (auto-configured)'
        CLSID: {EE30215D-164F-4A92-A4EB-9D4C13390F9F}
        Host: C:\Users\Mum and Dad\AppData\Roaming\J River\Media Center 18\Plugins\lav\LAVVideo.ax
        Input Pin 'Input'
            Connected to pin 'Output' of filter 'JRiver Video Monitor'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Output'
            Connected to pin 'Input' of filter 'madVR'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2

    Filter 'LAV Audio Decoder (auto-configured)'
        CLSID: {E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}
        Host: C:\Users\Mum and Dad\AppData\Roaming\J River\Media Center 18\Plugins\lav\LAVAudio.ax
        Input Pin 'Input'
            Connected to pin 'Output' of filter 'JRiver Audio Monitor'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {EB27CEC4-163E-4CA3-8B74-8E25F91B517E}, Format type FORMAT_WaveFormatEx
        Output Pin 'Output'
            Connected to pin 'In' of filter 'JRiver Audio Renderer'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_PCM, Format type FORMAT_WaveFormatEx

    Filter 'JRiver Video Monitor'
        CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
        Host: 
        Input Pin 'Input'
            Connected to pin 'Video' of filter 'LAV Splitter (auto-configured)'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Output'
            Connected to pin 'Input' of filter 'LAV Video Decoder (auto-configured)'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO

    Filter 'JRiver Audio Monitor'
        CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
        Host: 
        Input Pin 'Input'
            Connected to pin 'Audio' of filter 'LAV Splitter (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {EB27CEC4-163E-4CA3-8B74-8E25F91B517E}, Format type FORMAT_WaveFormatEx
        Output Pin 'Output'
            Connected to pin 'Input' of filter 'LAV Audio Decoder (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {EB27CEC4-163E-4CA3-8B74-8E25F91B517E}, Format type FORMAT_WaveFormatEx

    Filter 'LAV Splitter (auto-configured)'
        CLSID: {B98D13E7-55DB-4385-A33D-09FD1BA26338}
        Host: C:\Users\Mum and Dad\AppData\Roaming\J River\Media Center 18\Plugins\lav\LAVSplitter.ax
        Output Pin 'Video'
            Connected to pin 'Input' of filter 'JRiver Video Monitor'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Audio'
            Connected to pin 'Input' of filter 'JRiver Audio Monitor'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {EB27CEC4-163E-4CA3-8B74-8E25F91B517E}, Format type FORMAT_WaveFormatEx

h5tuu · « **Reply #25 on:** April 05, 2013, 03:58:18 pm »

Must be something I'm doing wrong...

Code: [Select]

Filter Graph Info:

    Filter 'JRiver Audio Renderer'
        CLSID: {A4002F8E-510F-442C-8AD3-F9C7B23FB394}
        Host: 
        Input Pin 'In'
            Connected to pin 'Output' of filter 'LAV Audio Decoder (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx

    Filter 'Enhanced Video Renderer'
        CLSID: {FA10746C-9B63-4B6C-BC49-FC300EA5F256}
        Host: c:\windows\system32\evr.dll
        Input Pin 'EVR Input0'
            Connected to pin 'Output' of filter 'LAV Video Decoder (auto-configured)'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2
        Input Pin 'EVR Input1'

    Filter 'LAV Video Decoder (auto-configured)'
        CLSID: {EE30215D-164F-4A92-A4EB-9D4C13390F9F}
        Host: C:\Users\HTPC\AppData\Roaming\J River\Media Center 18\Plugins\lav\LAVVideo.ax
        Input Pin 'Input'
            Connected to pin 'Output' of filter 'JRiver Video Monitor'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Output'
            Connected to pin 'EVR Input0' of filter 'Enhanced Video Renderer'
            Major type MEDIATYPE_Video  Sub type MEDIASUBTYPE_NV12, Format type FORMAT_VideoInfo2

    Filter 'LAV Audio Decoder (auto-configured)'
        CLSID: {E8E73B6B-4CB3-44A4-BE99-4F7BCB96E491}
        Host: C:\Users\HTPC\AppData\Roaming\J River\Media Center 18\Plugins\lav\LAVAudio.ax
        Input Pin 'Input'
            Connected to pin 'Output' of filter 'JRiver Audio Monitor'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {A7FB87AF-2D02-42FB-A4D4-05CD93843BDD}, Format type FORMAT_WaveFormatEx
        Output Pin 'Output'
            Connected to pin 'In' of filter 'JRiver Audio Renderer'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx

    Filter 'JRiver Video Monitor'
        CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
        Host: 
        Input Pin 'Input'
            Connected to pin 'Video' of filter 'LAV Splitter (auto-configured)'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Output'
            Connected to pin 'Input' of filter 'LAV Video Decoder (auto-configured)'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO

    Filter 'JRiver Audio Monitor'
        CLSID: {A4207487-E7D8-406B-9882-B66370DE2492}
        Host: 
        Input Pin 'Input'
            Connected to pin 'Audio' of filter 'LAV Splitter (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {A7FB87AF-2D02-42FB-A4D4-05CD93843BDD}, Format type FORMAT_WaveFormatEx
        Output Pin 'Output'
            Connected to pin 'Input' of filter 'LAV Audio Decoder (auto-configured)'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {A7FB87AF-2D02-42FB-A4D4-05CD93843BDD}, Format type FORMAT_WaveFormatEx

    Filter 'LAV Splitter (auto-configured)'
        CLSID: {B98D13E7-55DB-4385-A33D-09FD1BA26338}
        Host: C:\Users\HTPC\AppData\Roaming\J River\Media Center 18\Plugins\lav\LAVSplitter.ax
        Output Pin 'Video'
            Connected to pin 'Input' of filter 'JRiver Video Monitor'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Audio'
            Connected to pin 'Input' of filter 'JRiver Audio Monitor'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {A7FB87AF-2D02-42FB-A4D4-05CD93843BDD}, Format type FORMAT_WaveFormatEx

jmone · « **Reply #26 on:** April 05, 2013, 04:12:36 pm »

I'm really confused

as I have no idea that (presume we are both playing the same sample) as the splitter is the same on both our systems yet:
- your reports an EAC3 Audio Stream (GUID : A7FB87AF-2D02-42FB-A4D4-05CD93843BDD)
- I get TrueHD (GUID : EB27CEC4-163E-4CA3-8B74-8E25F91B517E)

I'll ask nevcairiel (author of LAV Filters) to see what he thinks.

Thanks
Nathan

h5tuu · « **Reply #27 on:** April 05, 2013, 04:18:44 pm »

Thanks Nathan, I appreciate it.

The only thing I was thinking, my processor does not support TrueHD but this shouldn't matter as I'm not bitstreaming?

I can confirm I have tried the new sample I made with the same results.

Hendrik · « **Reply #28 on:** April 05, 2013, 04:35:11 pm »

Works just fine for me as well.
I cannot think of any reason why this wouldn't work for you while work for us, unless you use a custom version of LAV, and not the default shipped with MC18?

Do you have any other version of LAV installed in your system?
Are you using default RO or RO HQ, not advanced mode?

jmone · « **Reply #29 on:** April 05, 2013, 04:37:06 pm »

Try deleting this folder (with MC closed) C:\Users\[USERNAME]\AppData\Roaming\J River\Media Center 18\Plugins\lav then play the file again (MC will re-download the correct version of LAV).

h5tuu · « **Reply #30 on:** April 05, 2013, 04:54:44 pm »

Well that seems to have done the trick

.

I will test a couple more files, many thanks for the help.

jmone · « **Reply #31 on:** April 05, 2013, 04:56:37 pm »

Matt · « **Reply #32 on:** April 05, 2013, 04:57:16 pm »

I don't suppose you kept the old folder so we might be able to see what went wrong?

h5tuu · « **Reply #33 on:** April 05, 2013, 04:59:13 pm »

I'm afraid not, I'm a little OCD with my recycle bin...

Sorry chaps

.

Ljg1118 · « **Reply #34 on:** November 04, 2013, 06:18:53 pm »

I am having trouble playing back 7.1 dtshd ma, the menu when pressing the up keys shows English dtshd ma 5.1 with no 7.1selection available. The same file plays 7.1 fine when using arcsoft player. Perhaps I have not set jriver correctly. I am moving this to new topic on MC19 thread

Any help is appreciated

INTERACT FORUM

Author Topic: TrueHD to LPCM (Read 6905 times)