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Playing DTS audio in Potplayer etc
carsonlittle
post Nov 27 2012, 07:46
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Member No.: 104788



I've got quite a mix of audio and video files on my HTPC that are a mix of DD(AC3), DTS, and multi-channel AAC in the audio track.

I have everything, that are contained in video files (be it AC3, DTS, and multi-channel AAC) working perfectly using Potplayer + ffdshow.

It's the DTS audio files that I can't get working using Potplayer (bitstreaming using foobar2k/uLilith over WASAPI exclusive works fine for those files except one : test.dts)

I have ffdshow configured such that multichannel AAC is encoded to AC3 before being sent to my receiver (by enabling AAC decoding through libfaad2 and checking the "AC3 (S/PDIF encode mode)" checkbox under "Supported output sample formats".).

My Spherex receiver has two SPDIF inputs and can play DTS, AC3 and stereo PCM. Supports sampling rates till 48Khz. HTPC only has single TOSLINK.

So my questions are:

1. How do I get these audio files processed by ffdshow so that they get re-encoded to AC3? I have put some sample audio files that I can't play, below (to reiterate bitstreaming using foobar2k/uLilith over WASAPI exclusive works fine for those files except one : test.dts)

2. I would also like to realtime encode multichannel FLAC to AC3

3. I would also like to realtime encode multichannel FLAC to DTS: is there a DTS plugin I could use to do that (just like re-encoding to AC3 from ffdshow)

Potplayer is just a player I found easy to work with - if there is something that can make this work, I am all for it!

Note: If the source is 2 channel, it should CONTINUE to be so and not converted to AC3 or DTS

test.dts: http://pessoal.onda.com.br/rjamorim/stuff/test.dts.zip

Sample multichannel FLAC: http://www.diatonis.com/downloads/diatonis...6-chan_9624.zip

Sample multichannel DTS audio files that I can't get working:

http://www.diatonis.com/downloads/diatonis...et-universe.zip
http://www.diatonis.com/downloads/diatonis...wav_io_afos.zip

MediaInfo says these files have property:

Audio
ID : 0
Format : DTS
Format/Info : Digital Theater Systems
Mode : 14
Format settings, Endianness : Little
Codec ID : 1
Bit rate mode : Constant
Bit rate : 1 411.2 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 44.1 KHz
Bit depth : 24 bits
Compression mode : Lossy

Potplayer filter info:

[Used Filter List]
(1) File Source (Async.)
(2) Wave Parser
(3) DirectSound Audio Renderer

[Audio Information]
Audio Codec:0x0000
Sample rate:44100 ->44100 samples / sec
Bit rate:16 ->16 bits / sample
Channels:2 ->2 channels
Bitrate: 1411 kbps

I am having similar issues playing rips of Titanic DTS

MediaInfo says these files have property:

Audio
ID : 0
Format : PCM
Format settings, Endianness : Little
Codec ID : 1
Duration : 3mn 3s
Bit rate mode : Constant
Bit rate : 1 411.2 Kbps
Channel(s) : 2 channels
Sampling rate : 44.1 KHz
Bit depth : 16 bits

Potplayer filter info:

[Used Filter List]
(1) File Source (Async.)
(2) Wave Parser
(3) DirectSound Audio Renderer

[Audio Information]
Audio Codec:0x0000
Sample rate:44100 ->44100 samples / sec
Bit rate:16 ->16 bits / sample
Channels:2 ->2 channels
Bitrate: 1411 kbps
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!ntel
post Aug 23 2013, 15:32
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Joined: 23-August 13
Member No.: 109767



You will need AC3Filter and Reclock setup with PotPlayer, so DTS to work properly.

AC3Filter - for decoding and passthrough the DTS content untouched to Reclock.
Reclock - for WASAPI bit exact output to the receiver.

This setup works for me, maybe it isn't the only one way to get DTS audio from PC, but I use it smile.gif
If you need the exact settings for that, I can post them later in this topic, when I make screenshots and have free time.

Also AC3Filter can encode almost any 5.1 audio source to AC3 format and passthru it to SPDIF. Not a perfect solution, but still smile.gif

This post has been edited by !ntel: Aug 23 2013, 15:36
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