No directshow source decoder for audio

[Chengbin]

I'm using HDConvertToX and I checked "force directshowsource as decoder" to decode audio. It seems that I don't have a direct show source decoder attached to my system, because the output file is just silence. It knows how long the audio stream is, but it can't seem to decode it. Eac3to can decode it, but it seems they're using their own decoder, and I don't want to use it because the sound is shifted to the left channel (leaving the right channel trebleless)

I have the latest ffdshow installed, and I can decode perfectly using MPC-HC. How do I attach a decoder to directshowsource?

I'm running Windows 7 32 bit.

Thanks.

[Blue_MiSfit]

What kind of audio are you speaking of? You're being quite vague here :)

Here's what I can glean so far:

1) You're trying to use HDConvertToX to backup a BluRay or HD-DVD
2) Your output contains no audio
3) eac3to can extract audio from your source, but it's shifted to the left channel, and there are no high frequencies on the right

Please post mediainfo and eac3to dumps from your source and output. Also, which title are we discussing?

Also, make sure you're using the latest eac3to.

Derek

[Chengbin]

I am trying to encode the free documentary "Home".

Mediainfo gives this



General
Unique ID : 254662451374996613782315459073107785571 (0xBF96343EAE0152E7A8F4F6DE865B7763)
Complete name : G:\Home.mkv
Format : Matroska
File size : 8.71 GiB
Duration : 1h 58mn
Overall bit rate : 10.5 Mbps
Encoded date : UTC 2009-06-12 00:06:52
Writing application : mkvmerge v2.6.0 ('Kelly watch the Stars') built on Mar 24 2009 15:23:17
Writing library : libebml v0.7.7 + libmatroska v0.8.1

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 58mn
Bit rate : 9 019 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.181
Stream size : 7.29 GiB (84%)
Title : Home
Writing library : x264 core 67 r1159M 3da3f95
Encoding settings : cabac=1 / ref=3 / deblock=1:-3:-3 / analyse=0x3:0x113 / me=umh / subme=8 / psy_rd=1.3:0.7 / mixed_ref=1 / me_range=28 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=2 / deadzone=6,4 / chroma_qp_offset=-4 / threads=6 / nr=0 / decimate=1 / mbaff=0 / bframes=4 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=3 / wpredb=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc=2pass / bitrate=9019 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30 / aq=1:0.50
Language : English

Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 1h 58mn
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
Compression mode : Lossy
Stream size : 1.25 GiB (14%)
Title : DTS Master Audio Core 5.1 1536k
Language : English


I don't know how to get a eac3to dump, but it doesn't matter, as I've given up on that software.

Before I didn't notice the lack of high frequency on the right channel issue from eac3to (even on the latest version), but Home has a unique (and annoying) high frequency hiss whenever the narrator speaks, and this made the lack of high frequency issue really obvious on earphones.

I know by using direct show source as the audio decoder on HDC works, because it works on one of my computer, but it doesn't work on my other computer.

Your interpretation is correct. Sorry for being vague. There is output when using direct show source, but it is a long silence.