IPB

Welcome Guest ( Log In | Register )

[Help] Demux audio from m2ts not the same using diff app
redwine
post Dec 17 2011, 21:24
Post #1





Group: Members
Posts: 23
Joined: 21-June 11
Member No.: 91712



Hi,

I have a m2ts file with video and LCPM audio.
I tried to demux the LPCM audio stream using TsMuxer, VLC & Audacity (open m2ts and export as wave).
I notice that all the 3 app give me wave file that are slightly different from one another.
(but all 3 apps give me 16bit 48kHz wave)

For a start, file size are slight different.
When i open the wave file in Audacity, the waveform are slightly different as well.
If i perform a binary compare, the whole files are totally different.
(if its a offset issue, i normally only see differences at the start or end of the file)

Any possibility of the above apps processing the raw audio differently ?


Rgds
Go to the top of the page
+Quote Post
 
Start new topic
Replies
killazys
post Mar 10 2012, 15:25
Post #2





Group: Members
Posts: 7
Joined: 25-August 11
Member No.: 93266



Use http://hank315.nl/ DGMPGDecode package. DGDecode should demux to a .pcm file for you. You can then convert that using SoX, NicLPCMSource() + SoundOut() in Avisynth, etc.
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 21st April 2014 - 07:02