Sound over HDMI problem

[icsterm]

It seems Splash PRO fails to playback sound over HDMI connection (ATI Radeon 4650 Mobility + Realtek HDMI Audio for ATI drivers). I don't get any audio with Stereo or Bitstream over HDMI but it seems warning sounds from Splash like 'restart playback warning' work. I don't have this problem with MPC-HC or any other audio software in my Windows 7 notebook.

Is there a fix ready in the next version?

[mrickman]

It seems Splash PRO fails to playback sound over HDMI connection (ATI Radeon 4650 Mobility + Realtek HDMI Audio for ATI drivers). I don't get any audio with Stereo or Bitstream over HDMI but it seems warning sounds from Splash like 'restart playback warning' work. I don't have this problem with MPC-HC or any other audio software in my Windows 7 notebook.

Is there a fix ready in the next version?

I'm having the same problem. I am currently using MPC-HC with ReClock to play my bitstreaming audio, and it works fine.
When trying to set up Splash Pro Trial I get no sound at all when using the HDMI setting. If I select 7.1 or 5.1, I get LPCM.

Any help would be appreciated, because I would like to transition to Splash if I can get bitstreaming working properly.

Mike Rickman

[icsterm]

I'm pretty sure this is a bug with certain HDMI hardware, because sound cam be heard with some TV models and some not. It also fails to output sound the default way via DirectSound device when HDMI audio device is default. Look forward for some feedback from the developers. If the bug can't be reproduced i'm open to help!

[Helios]

I'm pretty sure this is a bug with certain HDMI hardware, because sound cam be heard with some TV models and some not. It also fails to output sound the default way via DirectSound device when HDMI audio device is default. Look forward for some feedback from the developers. If the bug can't be reproduced i'm open to help!

1. Please set stereo output in Splash and set your digital output as default device. Uncompressed PCM should be sent to the receiver (TV or amplituner), and should be heared on all TVs.
2. Now set HDMI output in Splash and play the file again (test AC3 and AAC audio formats if possible). For AC3 Splash sents compressed data (pass through), for AAC Splash sents uncompressed PCM.

If AC3 is not heared on some TVs, the TV does not support AC3 decoding and you should set stereo (or 5.1, 7.1) output in Splash. It should resolve the problem.

You can also use windows tools to test your receiver capabilities (Vista): Control Panel -> Sounds -> Properties (on digital device) -> Supported Formats.

[icsterm]

I'm pretty sure this is a bug with certain HDMI hardware, because sound cam be heard with some TV models and some not. It also fails to output sound the default way via DirectSound device when HDMI audio device is default. Look forward for some feedback from the developers. If the bug can't be reproduced i'm open to help!

1. Please set stereo output in Splash and set your digital output as default device. Uncompressed PCM should be sent to the receiver (TV or amplituner), and should be heared on all TVs.
2. Now set HDMI output in Splash and play the file again (test AC3 and AAC audio formats if possible). For AC3 Splash sents compressed data (pass through), for AAC Splash sents uncompressed PCM.

If AC3 is not heared on some TVs, the TV does not support AC3 decoding and you should set stereo (or 5.1, 7.1) output in Splash. It should resolve the problem.

You can also use windows tools to test your receiver capabilities (Vista): Control Panel -> Sounds -> Properties (on digital device) -> Supported Formats.

On audio formats on the HDMI audio device I only see Dolby Digital and sample rates 32KHz to 192KHz, HDCP enabled.
I tested the problematic MKV file and it seems it fails on both laptop speakers and HDMI with Stereo on in Splash PRO settings. Mediainfo says:

Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 1h 31mn
Bit rate mode : Constant
Bit rate : 1 510 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits


And i found another problematic MKV, it plays back fine with Stereo on HDMI but fails with Bitstream.

Media info says:

Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 1h 40mn
Bit rate mode : Constant
Bit rate : 1 510 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits


One of the tested mkv files that play fine with both stereo and Bitstream has the following:



Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : A_AC3
Duration : 3h 20mn
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Stream size : 550 MiB (12%)



IT seems Splash might have some audio demuxing problems on certain mkv files that MPC-HC don't, or fail to bitstream again on certain containers. The most problems come when the audio is in DTS.


On some MKV files that play fine there is no information when I press "I" hotkey, the info box just stays blank

Lots of bugs to be fixed.


I might be able to provide some small mkv samples to help out.

[latino]

I have no HDMI input on my receiver so I have to use my tv as receiver. The tv is 2.0 only I guess, so I should always use 2.0 in the Splash settings? Will any 5.1 content then automatically be downmixed?

I never understood the difference between the 5.1 setting and the hdmi-passthrough, compressed, uncompressed, PCM etc.

If anybody knows an interesting webpage where this is explained for a complete beginner you would make me happy

[Helios]

Hi icsterm,

first stream may have the problem mentioned here: http://www.mirillis.com/forum/viewtopic.php?f=18&t=413
the second one shows, that your receiver does not support DST compressed audio and you should set stereo output (or 5.1) in audio settings.
the third one shows, that your receiver supports AC3 decoding and all audio ouputs will work.

as a temporal solution I reccomend setting audio output to 5.1.

regards,

[xtrips]

Hello,

I am a long time user of KMplayer and I like its versatility. But I am tempted by the more simplified, slick interface of SplashPro.
The thing is my HTPC is connected to my pre-pro through an HDMI interface and all is configured for bitstreaming, either for the low codecs (DTS,DD) or the high codecs (DTS-HD/MA,DTHD).
The problem is that SplashPRO doesn't even allow to select the HDMI bitstreaming option. It is grayed out.
My sound card is an Asus Xonar HDAV.
So what can it be? The barebone interface doesn't help much either.
Are there any hidden interfaces, registry parameters, whatever?

Thanks

[Joco1114]

Hey, I have Asus Xonar HDAV Slim 1.3! I CAN select HDMI bitstream option, but I cant hear any sound. I am using the "7.1 channel" option and it's working properly. I wondered why the HDMI bitstream not working, but I thought it is my lack.
Maybe we have to start a topic in Asus forum: http://vip.asus.com/forum/topic.aspx?bo ... uage=en-us!

Joc

[icsterm]

I believe that in order to have bitstream working you need hardware decoding of the bitstreamed codec. So if your movie has DTS then your TV for example needs DTS native decoding. Using Stereo output will convert the output to uncompressed 16bit/24bit output if i'm not wrong.