Skip to main content ↑ ↓

Notice

Please note that most of the software linked on this forum is likely to be safe to use. If you are unsure, feel free to ask in the relevant topics, or send a private message to an administrator or moderator. To help curb the problems of false positives, or in the event that you do find actual malware, you can contribute through the article linked here.
Topic: Flac 24bit (Read 7759 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

Flac 24bit

hi,


I just make some tests with 24bit files. (I have no read any information about  supporting bit rates in flac)

And  there is  intresting fact just it seems to be all ok, but packed files for about  half sized compare to  monkey's packed files, which is generally impossible.
BUT!
After decompressing these files I getting files seems to be playable.
(not make correct test of these files yet)


What is your opinion,  please help me,  because I wanted  to archive  all my  projects contains  large amount of  24 bit  files.


Regards,
Victor

Flac 24bit

Reply #1 –
FLAC will support files from 4 bit to 32 bit.

The relevant answer in the FLAC FAQ can be found here.
I'm on a horse.

Flac 24bit

Reply #2 –
Quote
FLAC will support files from 4 bit to 32 bit.

The relevant answer in the FLAC FAQ can be found here.
[a href="index.php?act=findpost&pid=365814"][{POST_SNAPBACK}][/a]

Last I checked FLAC does not support 32-bit.  I thought 24 was the max.  Someone correct me if I am wrong.  When I make music in the end it is 32-bit and FLAC won't take it.

Flac 24bit

Reply #3 –
Maybe flac supports 32 bit integer?

@Dr.Victor : what do you mean, " but packed files for about half sized compare to monkey's packed files"?

Flac 24bit

Reply #4 –
"FLAC supports from 4 to 32 bits per sample. Currently the reference encoder and decoders only support up to 24 bits per sample."

Flac 24bit

Reply #5 –
hello,

Here is the file list. The flac is about half as monkey size.It's generally
impossible. (monkeys set to high pack, flac to 6)

G:\temp\Loseless Audio Packer tests\!
acguit pengetes_01.ape                                                                    830 188  2006.02.20  9:11pm  A 
acguit pengetes_01.flac                                                                    333 916  2005.10.01  12:25am  A 
acguit pengetes_01.wav                                                                  2 658 284  2005.10.01  12:25am  A 
acguit pengetes_02.ape                                                                  1 185 284  2006.02.20  9:11pm  A 
acguit pengetes_02.flac                                                                    461 538  2005.10.01  12:26am  A 
acguit pengetes_02.wav                                                                  3 697 964  2005.10.01  12:26am  A 
Oboa_01.ape                                                                                830 976  2006.02.20  9:12pm  A 
Oboa_01.flac                                                                              370 461  2005.10.01  12:14am  A 
Oboa_01.wav                                                                              2 540 204  2005.10.01  12:14am  A 
Oboa_02.ape                                                                              1 206 672  2006.02.20  9:12pm  A 
Oboa_02.flac                                                                              520 135  2005.10.01  12:14am  A 
Oboa_02.wav                                                                              3 542 444  2005.10.01  12:14am  A 
Oboa_03.ape                                                                                78 456  2006.02.20  9:12pm  A 
Oboa_03.flac                                                                                4 960  2005.10.01  12:15am  A 
Oboa_03.wav                                                                              1 074 824  2005.10.01  12:15am  A 

15 files; 19 336 306 bytes

Total: 1 directories;  15 files;  19 336 306 bytes

Flac 24bit

Reply #6 –
Hm.. Maybe it will more itresting...

Check the file size of oboe_03 !  It  is a  silent soundfile...
How can it be that monkey make only half  size  from it , and flac only  few bytes.

All other sounds all not silent sounds from the list , but the difference  still big !
So the reason I think not  this.


regards,
Victor
 

Flac 24bit

Reply #8 –
I made a minimal test with a small music file. No weird sizes here. Also the decoded outputs were identical with the original 24-bit wave file.



I tried a completely silent file too. It seems that Monkey's Audio can squeeze digital silence more in 16-bit mode and FLAC in 24-bit mode.



However, I don't think the amount of digital silence compression makes any practical difference. The sizes are small anyway.

In any case you should compare the decoded files for making sure that they have identical audio content.

Flac 24bit

Reply #9 –
Actually, I think the Monkey's Audio developer has forgot to optimize digital silence in 24-bit mode. The 24-bit file is full of "zeros" when viewed with a hex editor. The 16-bit file contains apparently just the file header. (I used Monkey's Audio 3.99 GUI program for encoding.)

Flac 24bit

Reply #10 –
Thats strange but good. Can I ask you of a favour? What happens if you try to encode the files in this post?

Flac 24bit

Reply #11 –
Here is the files I tested

I made  my  24 bit 48kHz file Oud_02.wav packed with flac, monkey, and  monkey's
external wavpack compression.
Original was 2439k Packed ape 622k, packed flac 228k (!!!) it's not half, it's LESS THAN half !!

After decompress again I made exact file comparsion, and the file is same, No errors!
(On standard  wave files,  I need to mention that I made test on broadcast files too, on compression broadcast wav flac lost the tag information, monkey was perfect on this)

Regards,

Victor

Please check it  for you :

http://www.drvictor.net/original_file.zip
http://www.drvictor.net/packed_depacked_files.zip

G:\! Packer test\ORIGINAL FILE
Oud_02.wav                                                                              2 439 668  2005.


G:\! Packer test\Packed Files
Oud_02.ape                                                                                622 120  2006.02.21  1:01pm  A 
Oud_02.flac                                                                                228 469  2005.10.01  2:58am  A 
Oud_02.wv                                                                                  231 052  2006.02.21  1:01pm  A