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Compress music collection, for portable use
post Nov 6 2013, 11:56
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I have a large music collection, containing FLAC and high bitrate mp3 files. Now I need a Software which converts it into a lossy format like aac. I want to store it on my NAS-server and stream or simply copy it to portable android devices.
Which software can I use? It needs to preserve the folder structure. And when I update my collection, it would be great if it looks only for the changes.
Which codec and quality would you recommend? I use mainly cheap in-ear headphones.


This post has been edited by patrick227: Nov 6 2013, 12:03
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post Nov 6 2013, 14:37
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I've used DBPowerAmp and am happy with the way it works. It definitely supports just converting the incremental changes.
In terms of format HE-AAC scales down well to double digit rates and is broadly compatible. How low you want to go is a matter of choice. I've gone as low as 48 which will make others cringe but it's acceptable if you want to carry as much as possible.
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post Nov 6 2013, 15:03
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It's not always convenient to go HE-AAC, the decoding speed is almost three times slower than LC, it will consume more battery. AAC LC starting at 96k is perfect IMO for portable use.

This post has been edited by eahm: Nov 6 2013, 15:15
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post Nov 6 2013, 15:25
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There's quite a lot of posts on this subject if you use the search.
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post Nov 7 2013, 13:24
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Your high-bitrate MP3 files are already lossy. Leave them alone. Transcoding just degrades the sound further.
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post Nov 8 2013, 03:14
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I second the leave the mp3's alone. I also second the suggestion that you try encoding your lossless files to AAC or OGG Vorbis around 96kbps. You'll be surprised how good they do at that bitrate.
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