示例#1
0
文件: singwave.c 项目: csound/csound
static int32_t make_Modulatr(CSOUND *csound,Modulatr *p, MYFLT *i)
{
    FUNC        *ftp;

    if (LIKELY((ftp = csound->FTnp2Find(csound,i)) != NULL))
      p->wave = ftp;
    else { /* Expect sine wave */
      return csound->InitError(csound, Str("No table for Modulatr"));
    }
    p->v_time = FL(0.0);
/*  p->v_rate = 6.0; */
/*  p->vibAmt = 0.04; */
    make_SubNoise(&p->noise, 330);/* Surely this should be scaled to esr?? */
/*  p->rndAmt = 0.005; */
    make_OnePole(&p->onepole);
    OnePole_setPole(&p->onepole, POLE_POS);
    OnePole_setGain(&p->onepole, RND_SCALE * FL(0.005) /* p->rndAmt */);
    return 0;
}
示例#2
0
文件: physmod.c 项目: anton-k/csound
int bowedset(CSOUND *csound, BOWED *p)
{
    int32        length;
    FUNC        *ftp;
    MYFLT       amp = (*p->amp)*AMP_RSCALE; /* Normalise */

    if (LIKELY((ftp = csound->FTnp2Find(csound, p->ifn)) != NULL)) p->vibr = ftp;
    else {                                      /* Expect sine wave */
      return csound->InitError(csound, Str("No table for wgbow vibrato"));
    }
    if (*p->lowestFreq>=FL(0.0)) {      /* If no init skip */
      if (*p->lowestFreq!=FL(0.0)) {
        length = (int32) (CS_ESR / *p->lowestFreq + FL(1.0));
        p->limit = *p->lowestFreq;
      }
      else if (*p->frequency!=FL(0.0)) {
        length = (int32) (CS_ESR / *p->frequency + FL(1.0));
        p->limit = *p->frequency;
      }
      else {
        csound->Warning(csound, Str("unknown lowest frequency for bowed string "
                                    "-- assuming 50Hz\n"));
        length = (int32) (CS_ESR / FL(50.0) + FL(1.0));
        p->limit = FL(50.0);
      }
      make_DLineL(csound, &p->neckDelay, length);
      length = length >> 1; /* Unsure about this; seems correct in later code */
      make_DLineL(csound, &p->bridgeDelay, length);

      /*  p->bowTabl.offSet = FL(0.0);*/
      /* offset is a bias, really not needed unless */
      /* friction is different in each direction    */

      /* p->bowTabl.slope contrls width of friction pulse, related to bowForce */
      p->bowTabl.slope = FL(3.0);
      make_OnePole(&p->reflFilt);
      make_BiQuad(&p->bodyFilt);
      make_ADSR(&p->adsr);

      DLineL_setDelay(&p->neckDelay, FL(100.0));
      DLineL_setDelay(&p->bridgeDelay, FL(29.0));

      OnePole_setPole(&p->reflFilt, FL(0.6) - (FL(0.1) * RATE_NORM));
      OnePole_setGain(&p->reflFilt, FL(0.95));

      BiQuad_setFreqAndReson(p->bodyFilt, FL(500.0), FL(0.85));
      BiQuad_setEqualGainZeroes(p->bodyFilt);
      BiQuad_setGain(p->bodyFilt, FL(0.2));

      ADSR_setAllTimes(csound, &p->adsr, FL(0.02), FL(0.005), FL(0.9), FL(0.01));
/*        ADSR_setAll(&p->adsr, 0.002f,0.01f,0.9f,0.01f); */

      p->adsr.target = FL(1.0);
      p->adsr.rate = p->adsr.attackRate;
      p->adsr.state = ATTACK;
      p->maxVelocity = FL(0.03) + (FL(0.2) * amp);

      p->lastpress = FL(0.0);   /* Set unknown state */
      p->lastfreq = FL(0.0);
      p->lastbeta = FL(0.0);    /* Remember states */
      p->lastamp = amp;
    }
    return OK;
}
示例#3
0
文件: physmod.c 项目: anton-k/csound
int fluteset(CSOUND *csound, FLUTE *p)
{
    FUNC        *ftp;
    int32        length;

    if (LIKELY((ftp = csound->FTnp2Find(csound, p->ifn)) != NULL)) p->vibr = ftp;
    else {                                   /* Expect sine wave */
      return csound->InitError(csound, Str("No table for Flute"));
    }
    if (*p->lowestFreq>=FL(0.0)) {      /* Skip initialisation?? */
      if (*p->lowestFreq!=FL(0.0)) {
        length = (int32) (CS_ESR / *p->lowestFreq + FL(1.0));
        p->limit = *p->lowestFreq;
      }
      else if (*p->frequency!=FL(0.0)) {
        length = (int32) (CS_ESR / *p->frequency + FL(1.0));
        p->limit = *p->frequency;
      }
      else {
        csound->Warning(csound, Str("No base frequency for flute "
                                    "-- assumed to be 50Hz\n"));
        length = (int32) (CS_ESR / FL(50.0) + FL(1.0));
        p->limit = FL(50.0);
      }
      make_DLineL(csound, &p->boreDelay, length);
      length = length >> 1;        /* ??? really; yes from later version */
      make_DLineL(csound, &p->jetDelay, length);
      make_OnePole(&p->filter);
      make_DCBlock(&p->dcBlock);
      make_Noise(p->noise);
      make_ADSR(&p->adsr);
                                /* Clear */
/*     OnePole_clear(&p->filter); */
/*     DCBlock_clear(&p->dcBlock); */
                                /* End Clear */
/*       DLineL_setDelay(&p->boreDelay, 100.0f); */
/*       DLineL_setDelay(&p->jetDelay, 49.0f); */

      OnePole_setPole(&p->filter, FL(0.7) - (FL(0.1) * RATE_NORM));
      OnePole_setGain(&p->filter, -FL(1.0));
      ADSR_setAllTimes(csound, &p->adsr, FL(0.005), FL(0.01), FL(0.8), FL(0.010));
/*        ADSR_setAll(&p->adsr, 0.02f, 0.05f, 0.8f, 0.001f); */
    /* Suggested values */
    /*    p->endRefl = 0.5; */
    /*    p->jetRefl = 0.5; */
    /*    p->noiseGain = 0.15; */ /* Breath pressure random component   */
    /*    p->vibrGain = 0.05;  */ /* breath periodic vibrato component  */
    /*    p->jetRatio = 0.32;  */
      p->lastamp = FL(1.0);       /* Remember */
                                  /* This should be controlled by attack */
      ADSR_setAttackRate(csound, &p->adsr, FL(0.02));
      p->maxPress = FL(2.3) / FL(0.8);
      p->outputGain = FL(1.001);
      ADSR_keyOn(&p->adsr);
      p->kloop = (MYFLT)((int)(p->h.insdshead->offtim*CS_EKR -
                               CS_EKR*(*p->dettack)));

      p->lastFreq = FL(0.0);
      p->lastJet = -FL(1.0);
      /* freq = (2/3)*p->frequency as we're overblowing here */
      /* but 1/(2/3) is 1.5 so multiply for speed */
    }
    return OK;
}