Trying to Convert 6-channel DTS to 2-channel MP3

[Ayepecks]

I've been trying to convert a 6-channel DTS to a 2-channel MP3 (trying to get it to play on my Zune HD) without much luck. I've been reading all the threads and guides here, but nothing's seemed to work so far.

First of all, I've tried Useac3to (I prefer it to the and Eac3to More GUI), but the only thing it lets me convert it to for some reason is WAV. I've tried then converting that WAV file to MP3 (using almost every freeware utility I can find on the Internet) with no such luck – it always winds up coming back as static after reencoding. I've tried foobar 2000, HyperCube Transcoder and many other tools listed on Doom9, but nothing seems to be working – they all either don't decode or give me static yet again.

I've been using Ripbot 246 to convert my video files to play on my Zune, and converting the original file (the container file which held the DTS) works, but the audio is messed up as it tries to convert it to a 2-channel audio file on its own with very poor results (certain dialogue is barely audible, for instance).

Am I doing something wrong? Any suggestions? (I've tried searching the Doom9 forum, so far nothing's worked, as I stated.)

[b66pak]

use ec3to for dts6ch to wav2ch:

eac3to myaudio.dts myaudio.wav -down2 -down16 -no2ndpass


use lame for wav2ch to mp3:

lame -V 2 --vbr-new --nohist --brief myaudio.wav myaudio.mp3
_

[Snowknight26]

Why would you not let eac3to run a second pass to remove any clipping?

[TinTime]

And also why -down16 if the wav is just a temporary intermediate file?

But eac3to should do the trick. When you say you end up with static, is that the final mp3 or the intermediate wav file?

[Ayepecks]

use ec3to for dts6ch to wav2ch:




use lame for wav2ch to mp3:


_
Thanks, I'll give that all a shot and report back.

Why would you not let eac3to run a second pass to remove any clipping?
I did let it run a second pass to remove clipping. There is no clipping, it's just not converting the WAV to MP3 for some reason -- it's all just garbage on the MP3, not like it's audible.

And also why -down16 if the wav is just a temporary intermediate file?

But eac3to should do the trick. When you say you end up with static, is that the final mp3 or the intermediate wav file?
The final MP3. The WAV file plays perfectly. It's odd.

[tebasuna51]

This is my prefered command line:

eac3to myaudio.dts stdout.wav -down2 -normalize | Lame -V 2 - myaudio.mp3

the dts is decoded, downmixed, normalized and sended with 24 bits to Lame.

[Snowknight26]

I did let it run a second pass to remove clipping. There is no clipping, it's just not converting the WAV to MP3 for some reason -- it's all just garbage on the MP3, not like it's audible.

That was actually a reply to what b66pak posted..

[b66pak]

@Ayepecks make sure you use the newest lame (LAME 3.98.2):

http://www.rarewares.org/mp3-lame-bundle.php

try decoding the static .mp3 back to .wav and see if its static too:

lame.exe --decode myaudio.mp3 test.wav"

[Ayepecks]

Thanks guys, everything is working great now. Appreciate it!

[nifedipin]

@Ayepecks ,
All the work can be done in foobar with dts pligin.
1.Open and play[just for check] your 5.1 dts wav in foobar.
2.In playlist right click on the file,select convert.convert to.wav...select dsp processing..click on the unnamed right buton..select 'convert 5.1 to stereo' and move it to the left pannel[meaning is active].You may thick also 'don't reset dsp betwen tracks'.Hit ok and woila!You gott a stereo wav file.This one can be converted in mp3[recommend variable bit rate setting] in any encoder you like[recommend dbpoweramp].
3.Enjoy,and happy encoding!
M
P.S.Alternatively i just saw you can convert directly to mp3 with foobar itself! :)