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> More File Types Welcome, Please?
thefireball
post Aug 22 2010, 06:20 PM
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It'd be nice to have the option of uploading more than just mp3s. I'd like to be able to upload m4a files, they are higher quality than mp3 (compressed files). GMCers in the case would need to upload both mp3 and whatever other file they are uploading. (because i know that mp3s are the standard of players and such)


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jafomatic
post Aug 22 2010, 06:36 PM
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That's a little bit of a myth. Both of those are simply containers for encoded media. M4A has a couple of interesting features that might make it seem better, but sound quality isn't in that list. It's up to the encoder, not the container.

1. M4A can maintain the same bitrate with slightly smaller filesize. Same sound quality, marginally smaller file.
2. M4A has fields for digital rights management.

In every other respect, it's simply a different colored box to put your stuff into and fewer computers know (currently) how to open that box. It's just a container.


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thefireball
post Aug 22 2010, 06:42 PM
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hmmmm....well i do notice a difference in quality between the two files
what am i hearing in difference??

This post has been edited by thefireball: Aug 22 2010, 06:46 PM


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Saoirse O'Shea
post Aug 22 2010, 07:08 PM
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QUOTE (thefireball @ Aug 22 2010, 05:42 PM) *
hmmmm....well i do notice a difference in quality between the two files
what am i hearing in difference??


As Jafo has said m4a is a container rather than the audio media strictly. Most probably the audio media you're hearing is AAC but it could be any of several others.


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Alexiaden93
post Aug 22 2010, 07:13 PM
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What one does to save a few megabytes of hard drive space smile.gif


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Azzaboi
post Aug 29 2010, 01:17 AM
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It's the higher bitrate which makes the difference, M4A format was never really used to save a few megas but to be able to have a higher quality in the same size. Your'll notice 128 - 256 kbps (near CD quality) vs 320 kbps is standard, but any format could have a higher or lower bitrate.

If you want quality then go for the .FLAC Audio Files format or even WMA Lossless!
(24-bit files playing at 96 kHz, which equates to upwards of 10,000 to 11,000 kbps)

Don't get me started on the dolby digital 5.1 surround sound... biggrin.gif


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thefireball
post Aug 29 2010, 05:05 AM
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Wow....cool! smile.gif


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Kristofer Dahl
post Aug 31 2010, 02:33 PM
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m4a should now be allowed in posts - please let me know if it doesn't work!


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Adrian Figallo
post Aug 31 2010, 04:52 PM
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always good to have more options, flac would be useful too smile.gif


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GrindGuer
post Aug 31 2010, 06:09 PM
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QUOTE (Adrian Figallo @ Aug 31 2010, 05:52 PM) *
always good to have more options, flac would be useful too smile.gif

I do agree with that, because it's a free lossless encoder that can be used on every platform. The compression ratio is far from mp3, but it doesn't lose any data during compression.


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thefireball
post Aug 31 2010, 11:20 PM
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Cool thanks kris!


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Ivan Milenkovic
post Sep 1 2010, 06:59 PM
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Audio quality is expressed through the bitrate and sample size, more than name of the file container/codec standard, but yeah, AAC is designed to outperform mp3 in several areas. Support should exist, although I'm not sure if all the browsers support it (they should tho).


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