File Sizes of mp3 and AAC
Sry for making new threads about this. I jsut want the best damn quality out of my iPod without losing to much space.
[298 byte] By [mike1984] at [2007-11-10 14:37:29] 
Which has bigger file sizes? Can I fit more stuff onto my iPod if I encode at 160kb/s mp3 or 128kb/s AAC? I also heard that 128 AAC is equivalent if not better to 160 mp3?
Sry for making new threads about this. I jsut want the best damn quality out of my iPod without losing to much space.
# 1 Re: File Sizes of mp3 and AAC
128kbps anything will be smaller than 160kbps anything. But if you want excellent quality then you need higher bitrates than 128kbps. To choose the best bitrate, rip the same track in several different bitrates, and listen to them without knowing which one. Select the one that sounds best to you.
LAME encoded VBR .mp3 will be very small, and .mp3 is supported by more DAPS and PC players than .aac.
CheeseBurgerman at 2007-11-15 13:29:07 >
# 2 Re: File Sizes of mp3 and AAC
Originally posted by CheeseBurgerman 128kbps anything will be smaller than 160kbps anything. But if you want excellent quality then you need higher bitrates than 128kbps.
To choose the best bitrate, rip the same track in several different bitrates, and listen to them without knowing which one. Select the one that sounds best to you.
LAME encoded VBR .mp3 will be very small, and .mp3 is supported by more DAPS and PC players than .aac.
i understood half of what you just said.
;)
XtremeResident at 2007-11-15 13:30:08 >
# 3 Re: File Sizes of mp3 and AAC
128kbps files take up 16kB per second of music, so a 4 min song would take up roughly 3840kB or 3.8MB. A 160kbps file takes up 20kB per second, so a 4 min song would take up around 4.7MB. This is independent of file format, so a 4 min 128kbps AAC will take up the same amount of space as a 4 min 128kbps MP3. However AACs are supposed to be higher quality at the same bit rate, so a 128kbps AAC will sound better than a 128kbps MP3.TOM
tomlevens at 2007-11-15 13:31:17 >
# 4 Re: File Sizes of mp3 and AAC
If you don't understand this gibberish, just stay with 128 acc.hacp at 2007-11-15 13:32:11 >
# 5 Re: File Sizes of mp3 and AAC
Seriously, if you listen to a 128kbps AAC and it sounds worse than the same CD, use a higher bitrate (e.g. 192kbps, 160kbps etc) and then compare it to a CD. When it sounds as good as a CD, then rip the rest of your songs in that bitrate.CheeseBurgerman at 2007-11-15 13:33:21 >
# 6 Re: File Sizes of mp3 and AAC
128Kbps requires 1MB per minute192Kbps requires 1.5MB per minute
Galley at 2007-11-15 13:34:20 >
# 7 Re: File Sizes of mp3 and AAC
That's the beauty of VBR. It doesn't have a set file size. It will be smaller than a CBR file since it uses lower quality when it can. (like silences)CheeseBurgerman at 2007-11-15 13:35:13 >
# 8 Re: File Sizes of mp3 and AAC
But you can't use VBR in iTunes, right?Can you have VBR aac files?
ipodman715 at 2007-11-15 13:36:15 >
# 9 Re: File Sizes of mp3 and AAC
Yes, you can have VBR AAC files, but iTunes rips in ABR AAC rather than VBR or CBR. However, if you ever want to purchase a DAP other than the iPod, you will need to convert your AAC files. I'd suggest that you use MP3 rather than AAC.Confusing as ever,
CBM
CheeseBurgerman at 2007-11-15 13:37:24 >
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