I shot this video with a point and shoot camera. What can I do to improve it? The only issue is that every conversion setting I've tried makes the mono audio sound a little worse, less clear or noisier than the raw. I tried uploading the raw to youtube with the same result. It's not bad but I'd rather keep the audio the same/as good as the original if possible. I never have this problem with stereo. I tried converting this one to 2 channel stereo in VirtualDub and that didn't help either and made it sound worse. Also why does Mediainfo report the original height as 960 pixels?

Mediainfo

General
Complete name : F:\video.AVI
Format : AVI
Format/Info : Audio Video Interleave
File size : 823 MiB
Duration : 12mn 18s
Overall bit rate : 9 353 Kbps

Video
ID : 0
Format : JPEG
Codec ID : MJPG
Duration : 12mn 18s
Bit rate : 9 219 Kbps
Width : 640 pixels
Height : 480 pixels
Original height : 960 pixels
Display aspect ratio : 4:3
Frame rate : 30.000 fps
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Scan type : Interlaced
Compression mode : Lossy
Bits/(Pixel*Frame) : 1.000
Stream size : 811 MiB (99%)
Title : FUJIFILM AVI STREAM 0100

Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Unsigned
Codec ID : 1
Duration : 12mn 18s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 1 channel
Sampling rate : 16.0 KHz
Bit depth : 8 bits
Stream size : 11.3 MiB (1%)
Alignment : Aligned on interleaves
Interleave, duration : 1000 ms (30.00 video frames)
Interleave, preload duration : 1000 ms