N73 SmartMovie Conversion Rates

I

ihateshopping

New member
So I have been doing a little bit of testing with Smartmovie conversion rates for my own use but thought I would go ahead and post my finding for anyone who may find this useful. These are rates for an N73 w/ Smartmovie s60v3.25 for s60 3rd edition handsets.

Firstly, I want to point out first and foremost that I am all for conservation of space. 2gigs is alot of memory and still barely enough in my eyes. What I am trying to say is I wanted to achieve maximum quality with minimal space used.

What I first did was convert files with Smartmovie's default configurations while only changing the "Optimize For" setting to "N73". Horrible idea the videos fit the screen great but the quality is horrible. The default setting are 256 kbps video with sound bitrate set to 40kbps and volume boost set to 150%.(audio is quite and not that great with these settings either)

I quickly deleted these few files and decided I wanted to way overshoot on the quality, I didn't care how long it took to convert, I wanted them to look and sound great. I then changed the video settings to 1024kbps w/ audio at 64 kbps bitrate but with volume boost at 250%.

The video turned out crystal clear and the audio was a little overtweaked and a bit too loud, other than that I was happy, except for the files size. A movie that had been around 100mb was now about 350 mb, unacceptable.

So, again I deleted and tried again. I decided to try the video at 512kbps and set audio back at 40kbps and with volume boost at 200% instead of 250%. The video turned out ok but I was still just a tad bit disatisfied with its looks, it had lost some of its true colors and became slightly pixelated the audio was good(unless using a A2DP converter like MSI Blueplayer, in that case leave it at 64bpbs and turn "Forice Mono" option off, I used these setting when converting music videos my girlfriend watches in the car through with my car stereo sound).

So finally I got it exactly how I wanted it. My final conclusion is as follows.

Starting from the top of the Converter and working my way down.

Video:
Crop Mode set to "No"
Reduce FrameRate = unchecked
Video Bitrate: 768 kpbs w/ Screen Size = 320x240
Optomize for N73 Obviously

Audio:
Frequency 22050
Bitrate: 40kpbs
Volume Boost: 200%-230%(I like 230 when listening on my BH-800 and H700)


Hope this helps.
 
thanks for the hard work man. i'm curious about the size of the final outcome, meaning how big is the video and for say a 4 minutes long music video? is there any audio/video out of sync while playing the result videos with SmartMovie?
 
I just converted that Cupid's Chokehold song, it is approximately 4 min 30 seconds and with the settings I used it went from 152 mb xvid file to about a 27-28 mb converted file. Looks perfect and there is no audio/video sync issues at all. Now realize that you are not going to want to listen to these at full volume unless you are on bluetooth at work like I am much of the time, otherwise I listen to them on about halfway volume.
 
I've been using reduced framerate, 512 kbps, 320x240 for video
Same audio settings except I left the audio boost at 150%

I've been using these settings for a long time and been pretty satisfied. The audio is often out of sync, but that's correctable.
 
thank you for the quick answer. i'll have to try that later.

currently i'm converting videos to MP4 format (H263 @ 320x240, 15fps, 256kbps / AAC @ 64kbps, 24MHz, stereo). good video quality with occasional pixelation and good sound. no audio/video sync problem at all with either built-in RealPlayer or PVPlayer. a 4 minutes music video will be about 8-10MB in size. perhaps you can try and compare the resulting quality as well.
 
i've actually tried, with both QuickTime's H264 and mencoder's x264 baseline profile. couldn't get it to play on the phone. until i can find a H264 codec that works, H263 seems to be the choice for now.



H264 can retain same, or some say even arhieve better, quality with a lower bitrate. as a result, the file size of the converted video can be much smaller.
 
Container: MP4
Video: H.264/AVC, 320:240 (4:3), 576 KBPS, 15 fps
Audio: AAC, Stereo, 64 kbps, 22050 Khz, Audiostream (default)
 
thanks! i'll try to replicate the settings with ffmpegX (since i'm on a Mac) and update here later.

also, i read somewhere that for MP4 container with AAC audio, 24MHz and 48MHz will result in better synced audio than 22.05MHz and 44.1MHz. i tried but didn't notice any difference but i'm sticking with 24MHz just for the heck of it.
 
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