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Old 7th May 2012, 09:53   #11618  |  Link
ilomambo
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Join Date: May 2004
Posts: 3
Quote:
Originally Posted by tebasuna51 View Post
You can use -down16 to obtain a WAV 5.1 channels, 16 bits, 48kHz with a bitrate of:
6 channels x 16 bits x 48KHz = 4608 kb/s

4608/1510 = 3,05
Thanks.

I am dumb regarding the technical details. I think the DTS file has the same information as the final WAV, that's why the increase in size seemed too much.
But, I assume from your explanation, that much of the DTS info is replicated to create the 6 CH WAV, and that's why the file is so much bigger, isn't it?

EDIT:
I just looked in another song I have in DTS 5.1 WAV format (in the AC3 filter properties while it was playing) and it showed this:

Code:
Decoder:
Stream format: DTS 3/2.1 (5.1) 44100Hz
Bitstream type: 14bit low endian
Frame size: free format
Samples: 1024
Bitrate: unknown
SPDIF stream type: 0xc
Frame interval: 4096
Actual bitrate: 1411kbps
DTS
speakers:  3/2.1 (5.1)
sample rate: 44100Hz
bitrate: 1411kbps
stream: 14bit LE
frame size: 3584 bytes
nsamples: 1024
amode: 9
No CRC
Tebasuna51, If I follow your math 6ch x 14bit x 44KHz = 3696 kbps != 1411 kbps reported by AC3
It is 13:40 min song and the file only takes 141MB
Something is not fitting, according to my understanding

On the other hand when I play the file created by eac3to, AC3 filter shows this:

Code:
Input format: PCM24 3/2.1 (5.1) 48000
User format: PCM16 - 0
Output format: PCM16 3/2.1 (5.1) 48000
That's why I think I am using the wrong tool. I just wanted to wrap the DTS file in WAV format, not to convert it. It seems the file I got is pure PCM.

Last edited by ilomambo; 7th May 2012 at 10:13.
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