Compression Suggestions

h0ffman · 29 December 2010, 20:05

Hi Guys

I've just finished a little bit of code which breaks up a modules into song and sample files, however the sample files have all been delta'd to help with the compression ratio.

I'm currently doing some tests with file imploder, and it's hitting some samples which it simply wont compress! They seem to be the samples with a lot of high frequencies, which makes sense to me.

I was wondering if anyone had any suggestions for compressing this kind of data?

I did a quick test with The Player 6.1 and its 4bit delta compression. Admitidely, very high yeild, but it does sacrifice quality quick badly.

Maybe its an option to use 4bit delta with some of the samples, maybe depending on the variance of the data (i.e. rough percentage of difference)

The sample files all range from around 1k to 50k, so was wondering if this was a factor too?

Would love to hear your thoughts.

Cheers

h0ffman · 30 December 2010, 18:21

Scrub this, I've opted for CrunchMania, its got the biggest win overall and it looks like i'll be able to fit it all onto 3 disks.

pandy71 · 31 December 2010, 12:19

Hmm maybe something like FLAC or even better Wavpack?

29 December 2010, 20:05	#1
h0ffman Registered User Join Date: Aug 2008 Location: Salisbury Posts: 768	Compression Suggestions Hi Guys I've just finished a little bit of code which breaks up a modules into song and sample files, however the sample files have all been delta'd to help with the compression ratio. I'm currently doing some tests with file imploder, and it's hitting some samples which it simply wont compress! They seem to be the samples with a lot of high frequencies, which makes sense to me. I was wondering if anyone had any suggestions for compressing this kind of data? I did a quick test with The Player 6.1 and its 4bit delta compression. Admitidely, very high yeild, but it does sacrifice quality quick badly. Maybe its an option to use 4bit delta with some of the samples, maybe depending on the variance of the data (i.e. rough percentage of difference) The sample files all range from around 1k to 50k, so was wondering if this was a factor too? Would love to hear your thoughts. Cheers

31 December 2010, 12:19	#3
pandy71 Registered User Join Date: Jun 2010 Location: PL? Posts: 2,877	Hmm maybe something like FLAC or even better Wavpack? Last edited by pandy71; 31 December 2010 at 12:40.

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30 December 2010, 18:21	#2
h0ffman Registered User Join Date: Aug 2008 Location: Salisbury Posts: 768	Scrub this, I've opted for CrunchMania, its got the biggest win overall and it looks like i'll be able to fit it all onto 3 disks.

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