HydrogenAudio

Lossless Audio Compression => FLAC => Topic started by: Amarok on 2018-11-14 10:41:17

Title: Encoding a FLAC file several times
Post by: Amarok on 2018-11-14 10:41:17
I ripped my entire CD collection with DBPoweramp to FLAC using a compression level of -5.
Subsequently I used DBPoweramp to convert the files to uncompressed.
Now I am running out of space again and I am considering re-converting my library of FLAC files to a compression level of -5.
However, I am reluctant to do so in case there is any detrimental effect on the files.
Does anyone know if there are any issues related to encoding and re-encoding FLAC files more than once?
Title: Re: Encoding a FLAC file several times
Post by: Deathcrow on 2018-11-14 10:48:00
FLAC is lossless. The compression level just affects the CPU required for encoding/decoding and resulting filesize. There's no difference in quality. Personally I always use compression level 8.

(though I can't speak to human error when needlessly reconverting FLAC files multiple times. A low level of understanding can lead to mistakes)
Title: Re: Encoding a FLAC file several times
Post by: Amarok on 2018-11-14 11:25:48
Not quite sure how it would be possible to make a mistake using DBPoweramp convertor to change the compression, but nevertheless, I imagine this is really a question about whether DBP Convertor is capable of re-converting without introducing any problems.
Title: Re: Encoding a FLAC file several times
Post by: probedb on 2018-11-14 12:09:33
What sort of problems do you think it would introduce? Either the encoder works or it doesn't surely?

Use level 8, it really is negligible the extra amount of time taken.
Title: Re: Encoding a FLAC file several times
Post by: magicgoose on 2018-11-14 14:15:52
Quote
Subsequently I used DBPoweramp to convert the files to uncompressed.
why though? FLAC decoding is extremely cheap on CPU.