SMP

The Sample Vision SMP File Format.

Sample Vision is a program used by professional musicians to send and receive samples via a MIDI interface to the PC. While on the PC, you can edit several parameters including loop points, pitch, time compression, normalize, sample rate, ect. The list of supported samplers include: AKAI {S700,X700,S900, S950,S612,S1000/1100}, Casio{FZ1,FZ10M,FZ20M}, Ensoniq{EPS,EPS16,ASR10,Mirage}, Emu{Emax,EmaxII}, Korg{DSS1,DSM1,T workstation}, Oberheim DPX-1, Peavey DPM-3, Roland {S10,MKS100,S220,S50,S330,S550}, Sequential Circuits Prophet 2000/2002, Sample Dump Standard devices, Yamaha TX16W.

The SMP format breaks down like this:

Offset	Size	Description
000	18	'SOUND SAMPLE DATA' ASCII FILE ID
0018	04	'2.1 ' ASCII FILE VERSION
0022	60	USER COMMENTS 60 ASCII CHARACTERS
0082	30	SAMPLE NAME LEFT JUSTIFIED 30 ASCII CHARACTERS
0112	04	SAMPLE SIZE SAMPLE DATA COUNT IN WORDS
0116	??	SAMPLE DATA 1 WORD PER SAMPLE, LEAST SIGNIFICANT BYTE

FIRST, LSW FIRST; SIGNED 16 BIT INTEGERS

??	02(DW)	RESERVED
??	04(DD)	LOOP 1 START USE SAMPLE COUNT NOT BYTE COUNT
??	04(DD)	LOOP 1 END
??	01(DB)	LOOP 1 TYPE 0=LOOP OFF,1=FORWARD,2=FORWARD/BACKWARD
??	02(DW)	LOOP 1 COUNT TIMES TO EXECUTE LOOP BEFORE NEXT LOOP

THERE ARE SEVEN MORE IDENTICAL LOOP STRUCTURES FOR A TOTAL OF 8

??	10	MARKER 1 NAME ASCII MARKER NAME
??	04(DD)	MARKER 1 POSITION FFFF MEANS UNUSED

THERE ARE SEVEN MORE IDENTICAL MARKER STRUCTURES FOR A TOTAL OF 8

??	01(DB)	MIDI UNITY PLAYBACK NOTE. MIDI NOTE TO PLAY THE SAMPLE AT ITS ORIGINAL PITCH
??	04(DD)	SAMPLE RATE IN HERTZ
??	04(DD)	SMPTE OFFSET IN SUBFRAMES
??	04(DD)	CYCLE SIZE. SAMPLE COUNT IN ONE CYCLE OF THE SAMPLED SOUND. -1 IF UNKNOWN

(DD)

4 BYTES, LS BYTE FIRST LS WORD FIRST

(DW) 2 BYTES LS BYTE FIRST

(DB) 1 BYTE

Sample Vision only writes seven loop structures to file as opposed to the eight structures it claims are written.

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