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 Compression (Read 4046 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

FLAC Compression

Hi,

I am new to compression with Flac.
I have applied these compression settings:

-8 -V -T "artist=%a" -T "title=%t" -T "album=%g" -T "date=%y" -T "tracknumber=%n" -T "genre=%m" -T comment="%e" -T "comment=EAC (Secure Mode)" %s

I tried to compress a couple of wav files:

wav -> 92 MB
Flac -> 63 MB

wav -> 75 MB
Flac -> 54 MB

Is this the max compression I can get?

If yes, is there any other lossless format which has a higher compressor rate?

Thanks
Alex
AOPEN AX34, PIII 1.0 GHz, 1GB RAM, Maxtor 40GB, WD 120 GB, Plextor 16/10/40A & PX-716A, HIS 9600 256Mb, 2xMonitor Philips 109P20, Canon i865, W2K, WXP

FLAC Compression

Reply #1
Many codecs compress better than FLAC - FLAC is geared more toward fast decoding.

If your goal is purely compression ratio then I would suggest Monkey's Audio, LA or OptimFROG.

Check the wiki comparison.
I'm on a horse.

FLAC Compression

Reply #2
Quote
Many codecs compress better than FLAC - FLAC is geared more toward fast decoding.

If your goal is purely compression ratio then I would suggest Monkey's Audio, LA or OptimFROG.

Check the wiki comparison.
[a href="index.php?act=findpost&pid=337674"][{POST_SNAPBACK}][/a]


Hi,

In Wiki it looks like Flac has a higher compression comparing to Monkey's Audio, 58,70 vs 55,70 

Yes, I'm looking for compression.

Thanks
Alex
AOPEN AX34, PIII 1.0 GHz, 1GB RAM, Maxtor 40GB, WD 120 GB, Plextor 16/10/40A & PX-716A, HIS 9600 256Mb, 2xMonitor Philips 109P20, Canon i865, W2K, WXP

FLAC Compression

Reply #3
Quote
In Wiki it looks like Flac has a higher compression comparing to Monkey's Audio, 58,70 vs 55,70   [a href="index.php?act=findpost&pid=337675"][{POST_SNAPBACK}][/a]


In the comparison, 100% is zero compression. Therefore, the lower the percentage, the better the compression.

FLAC Compression

Reply #4
Quote
Hi,

In Wiki it looks like Flac has a higher compression comparing to Monkey's Audio, 58,70 vs 55,70  :blink:

Yes, I'm looking for compression.

Thanks
Alex
[{POST_SNAPBACK}][/a]


You will want to read that the other way, where the percentage is the average size of the compressed file versus the original. With the numbers quoted, that gives Monkey's a 3% advantage.

The best compression I have had with FLAC was with this set of discs:
[a href="http://www.amazon.com/gp/product/customer-reviews/B00005O13O/104-2949821-4630339?_encoding=UTF8]http://www.amazon.com/gp/product/customer-...?_encoding=UTF8[/url]

FLAC Compression

Reply #5
Quote
Quote
In Wiki it looks like Flac has a higher compression comparing to Monkey's Audio, 58,70 vs 55,70   [a href="index.php?act=findpost&pid=337675"][{POST_SNAPBACK}][/a]


In the comparison, 100% is zero compression. Therefore, the lower the percentage, the better the compression.
[a href="index.php?act=findpost&pid=337677"][{POST_SNAPBACK}][/a]



OK, I sse what you mean.

Many thanks

Alex
AOPEN AX34, PIII 1.0 GHz, 1GB RAM, Maxtor 40GB, WD 120 GB, Plextor 16/10/40A & PX-716A, HIS 9600 256Mb, 2xMonitor Philips 109P20, Canon i865, W2K, WXP

FLAC Compression

Reply #6
See this small benchmark for a nice comparison of various lossless codecs. I've just started ripping my CD collection and I use WavPack. It's MUCH faster when encoding than FLAC, and compresses a little better most of the time.
Other parameters can be considered though.

 

FLAC Compression

Reply #7
Quote
I am new to compression with Flac.
I have applied these compression settings:

-8 -V -T "artist=%a" -T "title=%t" -T "album=%g" -T "date=%y" -T "tracknumber=%n" -T "genre=%m" -T comment="%e" -T "comment=EAC (Secure Mode)" %s

I would recommend this command line for FLAC :

-T "artist=%a" -T "title=%t" -T "album=%g" -T "date=%y" -T "tracknumber=%n" -T "genre=%m" %s

This command line uses FLAC's default compression level(-5). Using -8 will take about 4 times longer to encode and only give a neglible gain in compression ratio... Also i have never used -V(verify), because no FLAC version gets released without having completed a comprehensive test suite of several thousand streams, which gets through a encode-decode-verify process and must pass on several different platforms, and also because the only known reason for verify errors currently, has been because of bad hardware...

-Martin.

FLAC Compression

Reply #8
Quote
Also i have never used -V(verify), because no FLAC version gets released without having completed a comprehensive test suite of several thousand streams, which gets through a encode-decode-verify process and must pass on several different platforms, and also because the only known reason for verify errors currently, has been because of bad hardware...

-Martin.
[a href="index.php?act=findpost&pid=337727"][{POST_SNAPBACK}][/a]

Yeah, but if you (unknowingly) happen to have this bad hardware, -V comes in useful
Proverb for Paranoids: "If they can get you asking the wrong questions, they don't have to worry about answers."
-T. Pynchon (Gravity's Rainbow)

 
SimplePortal 1.0.0 RC1 © 2008-2021