Det låter som det egna formatet är lite mer avancerat än bara en sampling. Det här kan nog vara svårt utan ytterligare dokumentation.7. SOUND FORMATS AND MIDI
The sounds in the ddrum4 SE reside in a memory that is technically called a Flash ROM. This means
that besides storing sounds, you can delete sounds that you do not want and replace them with new ones.
The Flash ROM also retains its content when the power is switched off. You can load sounds into the
ddrum4 SE module via MIDI in two different formats, the ddrum4 format and the MIDI SDS (Sample
Dump Standard) format. Sounds in the ddrum4 format can be accessed from the Clavia web site, free of
charge. Point your browser to http://www.clavia.se/ for more information.
DDRUM4 SOUNDS
A ddrum4 sound contains one or more samples that have been converted to a proprietary format. It has
been carefully edited by the Clavia crew and finally compressed (by a factor 3-6 times). The compression
technology allows for the sounds to take up less memory so that we can put more of them into the
ddrum4 SE. Each ddrum4 sound has a unique name, which assigns it to the appropriate sound group.
The sound numbers do not have to be consecutive. A ddrum4 sound can also contain a couple of varia-
tions, which are different sets of functions that affect the sound and how it behaves when played back.
These special functions/parameters cannot be edited by the user. One type of variation function would
be the crossfade information for multi samples or dynamic filter settings.
så jag har bara dessa länkar som är hela bibliotek med samples http://www.4shared.com/file/x4bHUwUL/Me ... brary.html De är midi-sysex filer då de överförs med mididump. En fil kan innehålla upp till 10 stycken samples, alltså olika ljud, beroende på hur hårt man slår. Filen innehåller även settings med två uppsättningar filter, det finns även loop-funktionalitet och pitch-bend etc. Processorn i dessa moduler är Motorola 68k, och dessa filer gjordes även på gamla Mac-datorer som har samma processor. Vet ej om det spelar roll. Settings och filter inställningar är relativt knäckta redan av en snubbe som heter Bill Piland, här finns dokumentation av hans arbete: http://home.comcast.net/~bill.piland/si ... a021d73f28Han bifogade också följade i en txt-fil:The file has INSTRUMENT_FILE_BLOCK and x number of SAMPLE_FILE_BLOCK.
Then all is packed from 8 to 7 bit into MIDI sysex.
Kod: Markera allt
/***************************************************************/
#define FILE_NAME_SIZE 31
#define MAX_VARIATION 10
#define MAX_PARBLOCK 10
#define MAX_SAMPLE 10
#define MAX_FREQPOINTS 8
/***************************************************************/
typedef struct{ // size = 20
SBYTE mParBlockFlag[MAX_PARBLOCK];
SBYTE mRandomFlag[MAX_PARBLOCK];
}VARIATION;
typedef struct{ // size = 24
UWORD mStartBlock;
UWORD mBlockCount;
UWORD mLoopBlockCount;
UBYTE mFreqPoint[MAX_FREQPOINTS];
UBYTE mFreqPointUsed;
UBYTE mFiller[5];
void *mFileMapEntry; // initialized at channel update
}DD4_SAMPLE;
typedef struct{ // not in instrument
UBYTE mGainVel[32];
UBYTE mGainPos[8];
UWORD mOutSelect;
UWORD mOutGain1;
UWORD mOutGain2;
UWORD mOutGain3;
UWORD mOutGain4;
UWORD mGain;
UWORD mGainOffset;
SWORD mGainPedal;
SLONG *mF1TabPtr;
SLONG *mF2TabPtr;
SWORD mF1Freq;
SWORD mF1FreqVel;
SWORD mF1Gain;
SWORD mF1GainVel;
SWORD mF1GainDecay;
SWORD mF2Freq;
SWORD mF2Gain;
SWORD mF2Q;
SWORD mF2FreqJump;
SWORD mF2FreqDva;
SWORD mPitchRes;
SWORD mPitchPress; // was mPitchPressure
SWORD mPitchEnvAmt;
SLONG mPitchEnvDecay;
SWORD mPitchEnvAmtVel;
SWORD mPitchEnvAmtDva;
SWORD mAmpEnvDecayRes;
SWORD mAmpEnvDecayVel;
SWORD mAmpEnvDecayPress; // was mDecayPressure
SWORD mAmpEnvDecayPedal;
SWORD mAmpEnvAttack;
SWORD mAmpEnvAttackVel;
DD4_SAMPLE *mSample;
}PB_EXTRA;
typedef struct{ // size = 50
// Sample select
SBYTE mSampleNr;
// Miscellaneous
SBYTE mF2FreqDva;
SBYTE mDiverse;
SBYTE mAmpEnvDecayPedal;
// Gain Scaling
UBYTE mGainVel[8];
UBYTE mGainPos[8];
// Pitch
SBYTE mPitch;
SBYTE mPitchFine;
SBYTE mPitchPress; // was mPitchPressure
SBYTE mPitchPanel;
SBYTE mPitchEnvDecay;
SBYTE mPitchEnvAmt;
SBYTE mPitchEnvAmtVel;
SBYTE mPitchEnvAmtDva; // Drumhead Vibration Algorythm
// Amp
SBYTE mAmp;
SBYTE mAmpVelCurve;
SBYTE mAmpEnvAttack;
SBYTE mAmpEnvAttackVel;
SBYTE mAmpEnvDecay;
SBYTE mAmpEnvDecayVel;
SBYTE mAmpEnvDecayPress; // was mDecayPressure
SBYTE mAmpEnvDecayPanel;
// Filter1
SBYTE mF1Freq;
SBYTE mF1FreqVel;
SBYTE mF1Gain;
SBYTE mF1GainVel;
SBYTE mF1Q;
SBYTE mF1GainDecay;
// Filter2
SBYTE mF2Freq;
SBYTE mF2Gain;
SBYTE mF2Q;
SBYTE mF2FreqJump;
PB_EXTRA *mPBExtraPtr; // initialized at channel update
}PARBLOCK;
/***************************************************************/
typedef struct{ // size = 960 (must be 960)
UBYTE mVersion;
UBYTE mClass;
UBYTE mFiller[18];
VARIATION mVariation[MAX_VARIATION]; // size = 20*10 = 200, offs = 20
PARBLOCK mParBlock[MAX_PARBLOCK]; // size = 50*10 = 500, offs = 220
DD4_SAMPLE mSample[MAX_SAMPLE]; // size = 24*10 = 240, offs = 720
}INSTRUMENT;
typedef struct{ // size = 60 (must be 60)
char mFileName[FILE_NAME_SIZE + 1];
ULONG mFileType;
ULONG mFileSize;
ULONG mFileDate;
UWORD mBlockCount; // Including block containing file header
UBYTE mReserved[14];
}FILE_HEADER;
/***************************************************************/
typedef struct{ // size = 1020 (must be 1020)
FILE_HEADER mFileInfo;
INSTRUMENT mFileInstrument;
}INSTRUMENT_FILE_BLOCK;
/***************************************************************/
#define C_PREOVERLAP_SIZE 2
#define C_DATA_SIZE 880
#define C_OVERLAP_SIZE 44
#define C_POSTOVERLAP_SIZE 2
#define C_OVERRUN_START (C_PREOVERLAP_SIZE+C_DATA_SIZE)
#define C_TOTDATA_SIZE (C_PREOVERLAP_SIZE+C_DATA_SIZE+C_OVERLAP_SIZE+C_POSTOVERLAP_SIZE)
typedef struct{ // size = 1020 (must be 1020)
SBYTE mData8bit[C_TOTDATA_SIZE];
SWORD mData16bit[C_OVERLAP_SIZE];
SBYTE mRateIdx;
SBYTE mExponentIdx;
SBYTE mEmphasis;
SBYTE mFiller;
}SAMPLE_FILE_BLOCK;
Det enda det säger mig att datat troligen är big-endian.Krillo skrev:Processorn i dessa moduler är Motorola 68k, och dessa filer gjordes även på gamla Mac-datorer som har samma processor. Vet ej om det spelar roll.
Då bör det finnas ett program som kan disassembleras för att få fram funktionen. Man skulle t.om kunna göra C-kod av assemblern så har man något att köra direkt.krillo skrev:dessa filer gjordes även på gamla Mac-datorer som har samma processor.
