請問為何Sanyo HD2錄出來的mp4檔轉wmv沒聲音

用威力導演轉換成其他種格式都可以正常有聲音耶
我也安裝了K-lite mega包了


以下是用KMPalyer所擷取到的媒體訊息
請問轉檔高手我該怎麼做呢@@a





D:\唱歌\SANY0046音浪.MP4
General
Complete name : D:\唱歌\SANY0046音浪.MP4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 25.1 MiB
Duration : 35s 168ms
Overall bit rate : 5997 Kbps
Movie name/More : SANYO DIGITAL CAMERA HD2
Encoded date : UTC 2009-01-26 19:55:04
Tagged date : UTC 2009-01-26 19:55:04
Origin : Digital Camera
Video #1
Format : MPEG-4 Visual
Format profile : Simple Streaming Video@L3
Format settings, BVOP : Yes
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default
Codec ID : 20
Duration : 35s 168ms
Bit rate mode : Variable
Bit rate : 5835 Kbps
Nominal bit rate : 6000 Kbps
Maximum bit rate : 12.0 Mbps
Width : 1280 pixels
Height : 720 pixels
Display aspect ratio : 16/9
Frame rate mode : Constant
Frame rate : 29.970 fps
Resolution : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.211
Stream size : 24.5 MiB (97%)
Language : English
Encoded date : UTC 2009-01-26 19:55:04
Tagged date : UTC 2009-01-26 19:55:04
Audio #2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 35s 157ms
Bit rate mode : Variable
Bit rate : 128 Kbps
Maximum bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Stream size : 551 KiB (2%)
Language : English
Encoded date : UTC 2009-01-26 19:55:04
Tagged date : UTC 2009-01-26 19:55:04