SMP

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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

THER 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

That's about it. One thing I have noticed is that Sample Vision only writes seven loop structures to file as opposed to the eight structures it claims are written.