FLAC vs. M4A - EVO 4G Q&A, Help & Troubleshooting

I'm no expert in audio codecs, so I'm just wondering what people's opinions are of these two file types. According to Wikipedia, they are both lossless codecs, however the .m4a files that I have are anywhere from 1/3 to 1/4 of the size of the same song but in .flac. My phone plays both file types just fine, so I'm wondering if there's a bigger advantage to flac that would justify the much bigger file size?

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Reducing MP3 files

Hey everyone,
I was wondering if there was away i can recude my MP3 file sizes so i can store more songs on my mobile. Is there away?
Thanks
Craig
Very simple! Reduce the quality (bps). High quality means large files but you can still enjoy decent music at 96kbps (kilo bits per second) with about 2 megs. per song.
Try google for a free converter.
Also, if your phone does not support stereo playback, then you can further reduce MP3 filesize by converting your MP3 files from stereo to mono.
Goodluck
Very easy actually. If you have the CD, wack it in the CD drive and in media player adjust the Rip settings. The smaller the file size, the worse quality it will be in most cases. If you dont have the CD the best thing to do is go to www.google.com and search for a free mp3 converter. I hope this helps.
when I owned Siemens SL45i I've used "AudioConverter Studio" to reduce bitrate of MP3s. http://www.ManiacTools.com
You can give it a set of files, select output quality, press "convert" and all is done.
Or you can convert files to OGG format. They are typically smaller than MP3s with the same quality. There are some freeware converters on net.
Convert the files on OGG format, which btw is greatly compressed without affecting quality and then use MortPlayer to play your tunes.
cdex is a freeware open source ripper and reconverter it's pretty good
Buy larger storage
This is just another option for compression option have been stated at above threads
buy a larger storage card so you can store more mp3.
I have 1g SD so I dont convert my mp3 anymore. Converting it to smaller will lost it quality. I just copy music I like to carry then earase it and copy another set after sometime, I keep my collection at the PC.

Playing files larger than 2gb?

So title explains it pretty well. I'm in the process of encoding all my Blu-Rays into my phone and my encodes are coming in just under 4gb so I'm okay there with the Fat32 limit but the media player wont play any of my files that are over 2gb. I just split them in half for now as a workaround but I was wondering if there's a way to modify the existing media player or perhaps a free market one that will work?
Unfortunately, Android apps cannot access files over 2GB in size. So you'll have to keep splitting them up. Or use a lower bitrate I've found that 2Mbps with two passes is plenty for a nice, crisp picture.

A good .avi to .mp4 converter?

I'm looking for a good converter which converts .avi to .mp4. I was using this one for my Touch Diamond 2 but I think the bitrate and stuff could be higher now when I got a Desire with better specs.
I used this one: http://forum.xda-developers.com/showthread.php?t=467112
I use Format Factory, it does a pretty good job and is free.
Sent from my ADR6300 using XDA App
Look at Xilisoft software. Not free but good for pretty much any video/audio convrrsion.
Sent from my Desire using XDA App
I have compared different converters and I recommend Convert-tune to download and convert video and audio easily.
It converts music and movies, and also burn files on CDs. The converter is
easy to install and use.
when using Xilisoft program i had many audio/video , synchronization problems ...
ArtieQ said:
I'm looking for a good converter which converts .avi to .mp4. I was using this one for my Touch Diamond 2 but I think the bitrate and stuff could be higher now when I got a Desire with better specs.
I used this one: http://forum.xda-developers.com/showthread.php?t=467112
Click to expand...
Click to collapse
Stick with that converter. It's awesome and there is no point in increasing the bitrate because the screen resolution and dimensions are the same. Increasing the bitrate will not show higher quality pictures.
AVS Video converter 6 is hands down the best converter i have used. Its not free, but its a good investment because it pretty much converts anything you throw at it. Even .mkv.
I use Handbrake on the Mac, think there is a PC version as well, works great.
+1 for Handbrake
You can pretty much just use the iPhone preset. You might need a laptop with some horsepower but it's worth using the h264 codec to reduce file size
http://handbrake.fr/
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You could just use RockPlayerBase to play the AVI instead of waiting for it to encode?
Tried using handbrake but neither Rock or the native player will recognise the m4v or mp4 file - any suggestions?
DroidBois said:
Tried using handbrake but neither Rock or the native player will recognise the m4v or mp4 file - any suggestions?
Click to expand...
Click to collapse
Why would you wanna use RockPlayer to watch .mp4? Just don't encode the videos.. leave them .avi or whatever, RockPlayer will play it. If you have .mp4 from beginning just use the inbuilt player.
Because I'm trying to save space and cram as many in to the memory card as I can - it's for a 6 week holiday so I want to take as much as I can. 700MB / file is un-necessarily large for a phone?
Well, I got a 32GB SD card right now and that's alooooot of movies.. I don't know what you got but converting to mp4 isn't saving so much space.
I thought a 700MB filecould be halved quite easily without any noticeable loss in quality, perhaps not? I want to take about 30 files with us, so a 16GB card or two won't be enough. We'd need 20 - 25GB of micro SD storage! With that much to carry around for an extended holiday, any saving of space would be substantial. The native player does seem to play the .avi files the files are currently stored in, however it seems a waste to keep them in their current size for such a small screen?
DroidBois said:
I thought a 700MB filecould be halved quite easily without any noticeable loss in quality, perhaps not?
Click to expand...
Click to collapse
Impossible unless of course the "video" happens to be a plain black image
sunny_mm said:
If you want to convert AVI files to MP4, you can go to try Kigo video converter free for Mac.
Kigo Video Converter for Mac supports converting all popular video formats including flv, MPEG1, MPEG2, MP4, 3GP, 3G2, MOV, AVI, M2TS, MPEG TS/TP (for HD Video), M4V, etc with perfect output quality and high conversion speed for Mac OS X users. You can also extract audio from videos.
The free video converter offers various powerful functions to edit your video files, such as trimming movies into segments, merging files to single file, cropping video size, setting video effects, and even adding watermark onto your movies.
If you are interested in this video converter, please visit
Click to expand...
Click to collapse
I know you want to get 10 posts, but try posting in newer threads, instead of resurrecting 3 year old ones.
Get mx player and play a avi movie and it starts laggings so I change the codec at top right corner to sw and the video was playing perfectly no lag.
Sent from my HTC Desire using xda app-developers app

Perfect XviD playback on the TP2

Since purchasing my TP2, I've labored under the belief (supported by a lot of other users) that xvid playback had to be choppy, and if I wanted smooth video (even encoded SD, 640x480ish), I had to convert my files to h264. I have an HTPC and compress all my shows into xvid, always have, and have no desire to change, so I basically abandoned watching video on my handset.
I was trying out a new tip today for better performance (muxing the same old files into an mp4 container without conversion) when my control file (same old avi/xvid to compare performance with) played absolutely perfectly. Not the hiccupy, choppy, 3-7fps I remember from when I first tried it, but smooth as silk. What the frak? I never even got around to trying my new tip out.
I grabbed an older file of the same show, also avi/xvid but WMP wouldn't open it and TCPMP played it at the 3-7FPS choppy unwatchable speed I remember from the old days. The only difference in the new file is that instead of using an mp3 audio track, I had stream copied the original AC3 audio track to deal with a sync issue I had with that particular recording. The video in both has the same xvid encoding by the same program with the same settings.
I'm preparing another test as I write to ensure that is the only difference between these two files. I'll take the same HD mpeg2, convert it into 1 xvid+mp3 and another xvid+ac3 with all other settings identical and compare their performance. I'll try mp2 audio as well (for my analog recordings). In the meantime, can anyone explain why mp3 audio would cause otherwise playable video of modest resolution to slow to a crawl?

[Q] Best Audio Format for Music Quality & Size

Hi Most of my songs are in m4a format that i keep on my phone while there great quality they take up a ton of space. So I was wondering what would be the best format to convert my songs to and at what bit rate while still retaining good quality sound and small file size
If you convert your files directly into a different format, you'll lose quality as you will be converting compressed to compressed audio (transcoding). You need to convert from the original cd, .wav or .flac files to maintain the quality of your music.
If you have these originals, try using foobar to convert them to MP3, either V0 (bigger files, better sound) or V2 (usually very difficult to tell the difference but a smaller file) with the LAME codec. You should be able to find these programmes and guides for using them by doing a google search.
[Edit] The above assumes that your .m4a files are not lossless. How big are the files and at what bitrate? If they are a good way above 320kbps then they will already be lossless and you convert directly. If not, the above applies. Right click and properties to have a check, or check using foobar.

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