• SONAR
  • FLAC Export - What does Subformat mean?
2017/05/03 17:28:03
andy_grahammer
 
Hello everone ^^
 
When I export my song as FLAC, I get asked to choose a Subformat, signed 8, 16 or 24 Bit PCM.
 
My Project-File is 48 kHz and 24 Bit. Is it then best to also choose Signed 24 Bit PCM or has the Export Bitresolution nothing to do with my Projects resolution?
2017/05/03 18:02:13
THambrecht
If you want to have the best quality you should choose 24 Bit.
The Export Resolution will be 24 Bit (as the project) and the FLAC-Converter asks you if you want to have the converted file as 8, 16 or 24 Bit.
If your project would be only 16-Bit the converter would also ask if you want to have it 8, 16 or 24. The FLAC-converter does not know how much bitresolution your project has.
2017/05/03 19:08:57
andy_grahammer
Thank you! This is the answer I was hoping for! :-)
 
Danke Dir! ^^
2017/05/03 19:54:24
The Maillard Reaction
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2017/05/04 13:56:13
bitflipper
I have to confess ignorance regarding the FLAC file format. If each of the three options produces different file sizes, but they all result in identical data when converted back into a wave file, then why wouldn't one always choose the option that produces the smallest file?
2017/05/04 16:41:29
dbrown0808
I'm with bitflipper and also FLAC ignorant....I thought lossless meant lossless, so I have the same question....why would you select anything but the smallest file size if they all produce the same content?
2017/05/06 06:22:07
shawker
I recall reading somewhere that it takes more CPU to uncompress a smaller FLAC file when it plays, it doesn't seem to matter any more as far as I can tell.
2017/05/06 08:42:21
interpolated
FLAC uses dictionary compression a bit like archiving tools like zip and RAR formats. So whilst they don't lose as much audio information during compression, the more there is more CPU is required to decompress them. That's the theory anyway.
 
Some music websites I use with regards to high resolution music use FLAC, WAV, AIFF or DSF/DFF formats.
 
2017/05/06 09:07:43
interpolated
High resolution seems to only matter when the source has been recorded at the same rate. 
2017/05/06 09:34:31
Soundwise
andy_grahammer
 
Hello everone ^^
 
When I export my song as FLAC, I get asked to choose a Subformat, signed 8, 16 or 24 Bit PCM.
 
My Project-File is 48 kHz and 24 Bit. Is it then best to also choose Signed 24 Bit PCM or has the Export Bitresolution nothing to do with my Projects resolution?


Using 24-bit FLAC to export 24-bit project preserves audio data, whereas converting to 16 or even 8 bit will reduce audio data. Sound deterioration may or may not be noticeable, depending on source material and number of other factors.
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