mp4 conversion

[zinc]

i want to convert an avi to an mp4 so it will play back on my psp. what are the best settings to have so i can get good quality video but not have a big file size.

what audio and video bitrate shall i have?

thanks.

[redwudz]

From the Sony site, the format seems to be:

Memory Stick video format:
MPEG-4 SP (AAC)
H.264/MPEG-4 AVC Main Profile (AAC)

I would look to SUPER first. It handles a lot of formats, is freeware and is fairly easy to use. For other programs, look here: https://www.videohelp.com/tools?s=36#36

I would take a look in our Portable Video Forum for more specific information. Moving you.

[zinc]

thanks man but what shall i set the bitrates to for the audio and video to get best results with a low file size.

[redwudz]

I don't have a PSP, so in general, the bitrate determines the filesize. I would use a lower bitrate for the audio to save space for the video. It appears a lot of this depends on how much space you have on your memory stick. Lower bitrate=lower quality. Sorry these comments are generic. I would get the biggest memory stick you can afford if you want to use video.

Most conversion programs will tell you how big the encoded file will be. You fit that to your available memory. If you want more in there, reduce the bitrate and the quality and you can fit more. How much depends on the source and what you can tolerate for quality. There's no set numbers, you have to adjust to your preferences and available memory.

There are likely members that have better info that are more familiar with the device. Just wait a while.

[zinc]

thanks alot redwudz its people like you that make videohelp a great place. thanks.

[Ai Haibara]

Note that SUPER has a default PSP output template - select "Sony - PSP" in the first drop-down box ("1. Select the Output Container"), and you can then experiment with different options from there. Also, when using the PSP output template, SUPER will only save the videos to its output directory, in the subdirectories the PSP expects to see on the Memory Stick. (I've forgotten the appropriate directories in both cases (SUPER's and the structure on the Memory Stick, so I apologize for not listing them here. )

[shootmeplz]

I suggest you try this software.
It is strange that i've ever converted some videos to mp4 format, but it doesn't work. and i tried this software to convert the same videos , the mp4 could be played in my psp.

and i still dont know why

[Epicurus8a]

I don't have a PSP, but I do have an iPod. If you plan on a lot of converting, I really reccomend this device by ADS Tech.
http://www.adstech.com/products/RDX-160/intro/RDX-160_intro.asp?pid=RDX-160
It better and faster, and easier to use than all the other conversion software I tried - including SUPER.

Specifications:

Includes
Instant Video To--Go, Video Transfer Accelerator device
6-inch USB 2.0 Extension cable
CD: Device Drivers & ArcSoft Media Converter 2
Quick Guide
Carrying Pouch

Video Player Compatibility:
Apple iPod with video playback capabilities
Sony PSP (latest firmware 2.81 required)
Cell phones and other devices with H.264 video playback capabilities

Compatible Formats:
Most standard video files that you can play on your PC
MPEG-1
MPEG-2
VOB (unprotected)
DivX
Quicktime Movie

Conversion Formats:

H.264 output formats accelerated via Video To-Go hardware conversion:

iPod High – 640 x 480, 1,536 kpbs, 30 frames per second, AAC audio 48 KHz, 64 kbps

iPod High – 320 x 240, 768Kbps, 30 frames per second, AAC audio 48 KHz, 64 kbps

iPod Medium – 320 x 240, 512 kbps, 30 frames per second, AAC audio 48 KHz, 64 kbps

iPod Low – 320 x 240, 320 kbps, 15 frames per seconds, AAC audio 48 KHz, 64 kbps



Sony PSP High - 320 x 240, 768 kbps, 30 frames per seconds, AAC audio 24 KHz, 64 kbps

Sony PSP Medium - 320 x 240, 512 kbps, 30 frames per seconds, AAC audio 24 KHz, 64 kbps

Sony PSP Low - 320 x 240, 320 kbps, 15 frames per seconds, AAC audio 24 KHz, 64 kbps





Other formats supported with ArcSoft Media Converter software conversion:

MPEG-4 encoded AVI file

Windows Media
MPEG-4 encoded ASF file

QuickTime movie
MPEG-1

3GP video
3G2 video

[crash447]

I like the looks of this device you have linked, but it the only thing that puzzles me is the 64kbps audio. Why would they do this?

[Epicurus8a]

I like the looks of this device you have linked, but it the only thing that puzzles me is the 64kbps audio. Why would they do this?

It's not a typo. I checked the software and confirmed the audio is 64 kbps. Your guess is as good as mine why it's so low, but the results are acceptable to my ear. If you want to PM a short clip to me I will convert it and PM it back to you. Will 512 kbps/30 frames be okay?