Audio/Video sync problem increases through the program with TsRemux

I tried to convert ts file to m2ts file (45mins long) with TsRemux v0.0.19. The file was converted okay but the audio sync gap increases through the program. I did try to check & uncheck “Bypass Audio Alightment” but no change with the results. Anybody know why?

The source comes from where and what is it really??

Thanks chef. The file is digital hdtv recorded program. Please take a look the “MediaInfo” output of my file:

General #0
Complete name : G:\Video(HD)(S)_[07][20080109]_cut.ts
Format : MPEG-4 Transport
Format/Family : MPEG-4
File size : 4.75 GiB
PlayTime : 43mn 53s
Bit rate : 16 Mbps

Video #0
Codec : AVC
Codec/Info : MPEG-4 AVC
PlayTime : 43mn 53s
Bit rate : 15 Mbps

Audio #0
Codec : AC3
Bit rate : 192 Kbps
Bit rate mode : CBR
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48 KHz
Video0 delay : 2ms

Audio #1
Codec : AC3
Bit rate : 192 Kbps
Bit rate mode : CBR
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48 KHz
Video0 delay : 16ms

Is the source unencrypted?
Maybe you could try with projectX.