Samples copy and depack

LeCaravage · 07 November 2018, 21:41

Hey,

Chip Ram is a small room, so my question is about the best way to save memory space when using musics.

What would be the best pick ?

- Using a module containing several songs sharing the same samples. All in chipram.
- Using a module containing several songs sharing the same samples but put songs in fast ram and samples in chipram.
- Using several modules packed in fast ram and depack on the fly the needed module in chip ram.
- Using a a module containing several songs sharing the same samples but put songs in fast ram and packed samples in fast ram, depack only needed samples. This option isn't the best I guess as samples need to keep the same offsets addresses in target ram.

- May be another solution I didn't spot ?

Samurai_Crow · 07 November 2018, 22:08

Which music file format and programming language? Medplayer.library does the second option by default.

LeCaravage · 07 November 2018, 22:15

My bad.

Protracker.
68000 Asm program.

Samurai_Crow · 07 November 2018, 22:28

If you're targeting a flat 68000 at 7 MHz you might want to avoid realtime unpacking of samples.

FastMem players copy sections of samples from fast memory without mixing so a frame of updates for each voice are all that's in Chip RAM at once. It still comes at a price for processor time.

LeCaravage · 07 November 2018, 22:37

Cornelian dilemma indeed.
I have to find other rooms of memory save as I don't want to restrain musician.
Thanks for the help.

07 November 2018, 21:41	#1
LeCaravage Registered User Join Date: May 2017 Location: AmigaLand Posts: 459	Samples copy and depack Hey, Chip Ram is a small room, so my question is about the best way to save memory space when using musics. What would be the best pick ? - Using a module containing several songs sharing the same samples. All in chipram. - Using a module containing several songs sharing the same samples but put songs in fast ram and samples in chipram. - Using several modules packed in fast ram and depack on the fly the needed module in chip ram. - Using a a module containing several songs sharing the same samples but put songs in fast ram and packed samples in fast ram, depack only needed samples. This option isn't the best I guess as samples need to keep the same offsets addresses in target ram. - May be another solution I didn't spot ?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Compressing Samples	phx	Coders. General	33	14 October 2018 05:09
Copy Programs - X-Copy II Twinsystem & Project-D v1.0 - 2.2	Wiking67	request.Apps	0	21 June 2018 14:43
Unknown Copy-Dongle [SOLVED: Siegfried-Copy 1.9SE]	TheZock	support.Hardware	4	26 November 2013 00:23
Best way to get samples onto the amiga...	ElectroBlaster	Amiga scene	4	21 October 2012 17:13
Requester Bug when copying IPF to Standard ADF with X-Copy/Power Copy.	BarryB	support.WinUAE	9	17 January 2012 20:20

07 November 2018, 22:08	#2
Samurai_Crow Total Chaos forever! Join Date: Aug 2007 Location: Waterville, MN, USA Age: 49 Posts: 2,186	Which music file format and programming language? Medplayer.library does the second option by default.

07 November 2018, 22:15	#3
LeCaravage Registered User Join Date: May 2017 Location: AmigaLand Posts: 459	My bad. Protracker. 68000 Asm program.

07 November 2018, 22:28	#4
Samurai_Crow Total Chaos forever! Join Date: Aug 2007 Location: Waterville, MN, USA Age: 49 Posts: 2,186	If you're targeting a flat 68000 at 7 MHz you might want to avoid realtime unpacking of samples. FastMem players copy sections of samples from fast memory without mixing so a frame of updates for each voice are all that's in Chip RAM at once. It still comes at a price for processor time.

07 November 2018, 22:37	#5
LeCaravage Registered User Join Date: May 2017 Location: AmigaLand Posts: 459	Cornelian dilemma indeed. I have to find other rooms of memory save as I don't want to restrain musician. Thanks for the help.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)