Videos in slow-mo and no audio

[MJW01]

I shot some video on a Nikon Coolpix on what I thought was the HD setting. About five out of 150 appear small, slow-motion and without sound. This sounds like the result of selecting the HS (High speed) setting, yet when I tested shooting video on this setting they did not appear like this.

Is it possible to retireve the audio and/or increase in size?

Hope you can help,
Martin

[Baldrick]

Do you have a short sample? Then post it in our forum or a filesharing site.

[MJW01]

Hi Baldrick - thanks for the reply. I've uploaded a file here:http://www.nqwg.co.uk/swa/ETHIOPIA_DAY_5_081.MOV and I've uploaded it to this post.


thanks,
Martin

[Baldrick]

The audio seems silent for the first 1:20 minutes. I tried extract it with some tools. But after 1:20 it plays fine, except the low video quality.

[MJW01]

Thanks for that. What tools did you use? It seems strange that it played OK after 1.20. Have you any idea what it might be (or how I might make them work?)

thanks,
Martin

[aedipuss]

making them bigger would only make them look worse. here are the specs.
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.1
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Format settings, GOP : M=1, N=30
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 4mn 16s
Bit rate : 629 Kbps
Width : 320 pixels
Height : 240 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.273
Stream size : 19.2 MiB (77%)

you could use an editor to cut off the silent parts and render out the good parts. here's what it looks like on the editor timeline.

[Attachment 9621 - Click to enlarge]

and if cut and increased to 640x480.