मैं इस है ...
int iTone = 40; //Tone to be interpreted
iSmplRate = 32000; //Sample Rate
int NumBytesPerSample = 16; // 8 or 16
int NumChannels = 2; //1 Mono, 2 Stereo
double Duration = 6.5; //Seconds performing
Short sAmplit = 1200;
int iNumSmpl = (int)(SampleRate*Duration);
NumTotalBytes = (int)(SampleRate*Duration*NumBytesPerSample*NumChannels);
ByteBuffer bbWav = ByteBuffer.allocate(NumTotalBytes);
double dMaxInstr = (double)Short.MIN_VALUE;
double dMinInstr = (double)Short.MAX_VALUE;
//Amplitude for violin's armonics
double[] violAmps = {1.0, 0.286699025, 0.150079537, 0.042909002,
0.203797365, 0.229228698, 0.156931925,
0.115470898, 0.0, 0.097401803, 0.087653465,
0.052331036, 0.052922462, 0.038850593,
0.053554676, 0.053697434, 0.022270261,
0.013072562, 0.008585879, 0.005771505,
0.004343925, 0.002141371, 0.005343231,
0.000530244, 0.004711017, 0.009014153};
//Amplitude for piano's armonics
double[] pianAmps = {1.0, 0.399064778, 0.229404484, 0.151836061,
0.196754229, 0.093742264, 0.060871957,
0.138605419, 0.010535002, 0.071021868,
0.029954614, 0.051299684, 0.055948288,
0.066208224, 0.010067391, 0.00753679,
0.008196947, 0.012955577, 0.007316738,
0.006216476, 0.005116215, 0.006243983,
0.002860679, 0.002558108, 0.0, 0.001650392};
double[] operator = {1.0};
if (instrument.equals("violin")) {
operator = violAmps;
}
if (instrument.equals("piano")) {
operator = pianAmps;
}
double dFreq = 440.0*Math.pow(2.0, (iTone-69)/12.0;
double dFreqRel = iSmplRate/dFreq;
Integer iSampleInstrument = null;
double PI2 = 2*Math.PI;
int[] iSamplesInstr = new int[iNumSmpl];
for (int i = 0;i < iNumSmpl; i++) {
Double Angle = i*PI2/dFreqRel;
Double dInstrument = 0.0;
for (int a = 1; a <=operator.length; a++) {
dInstrument += operator[a-1]*Math.sin((double)a*Angle);
}
dMaxInstr = (dInstrument>dMaxInstr)?dInstrument:dMaxInstr;
dMinInstr = (dInstrument<dMinInstr)?dInstrument:dMinInstr;
iSampleInstrument = (int)(sAmplit*dInstrument);
if (instrument.equals("violin")) {
double FreqEnvV = iSmplRate/6.0;
double FracEnvV = 35.0;
double dEnvViolin = sAmplit*DStepperExt(Math.sin(1.0*i*PI2/FreqEnvV),4)/FracEnvV;
iSampleInstrument = (int)(iSampleInstrument+dEnvViolin);
}
if (instrument.equals("piano")) {
double FracEnvP = 8.0/10.0;
double AngP = (double)i/(iSmplRate*FracEnvP);
double EnvPiano = 1.0/Math.exp(AngP);
iSampleInstrument = (int)(iSampleInstrument*EnvPiano);
}
dMxSmplInstr = (iSampleInstrument>dMxSmplInstr)?iSampleInstrument:dMxSmplInstr;
dMnSmplInstr = (iSampleInstrument<dMnSmplInstr)?iSampleInstrument:dMnSmplInstr;
iSamplesInstr[i] = iSampleInstrument;
}
double dMaxAbs =
(Math.abs(dMaxInstr)>Math.abs(dMinInstr))?Math.abs(dMaxInstr):Math.abs(dMinInstr);
double dMxAbsSmpl =
(Math.abs(dMxSmplInstr)>Math.abs(dMnSmplInstr))?Math.abs(dMxSmplInstr):Math.abs(dMnSmplInstr);
double dNormal = 1.0;
if (dMxAbsSmpl > 32768.0) {
dNormal = 32768.0/dMxAbsSmpl;
}
for (int i = 0;i < iNumSmpl; i++) {
short sSampleInst = (short)(iSamplesInstr[i]*dNormal);
try {
if (iNumByteSmpl == 2) {
bbWav.put((byte)((sSampleInst >> 0) & 0xFF));
bbWav.put((byte)((sSampleInst >> 8) & 0xFF));
if (iNumChnnls == 2) {
bbWav.put((byte)((sSampleInst >> 0) & 0xFF));
bbWav.put((byte)((sSampleInst >> 8) & 0xFF));
}
} else {
byte ByteSample = (byte)((sSampleInst >> 8) & 0xFF);
short ShrtSample = (short)(ByteSample & 0xFF);
ShrtSample += 128;
bbWav.put((byte)(ShrtSample & 0xFF));
if (iNumChnnls == 2) {
bbWav.put((byte)(ShrtSample & 0xFF));
}
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
इस कोड वायलिन साधन में प्रयोग किया जाता है:
private Double DStepperExt(Double Val, Integer Steps) {
//Return a value inside in range defined by step
//Divide [-1.0,1.0]/(Steps-1), retorning the value according to the range
//The value must be between 0.0 and 1.0
if (Steps <= 0.0) {
return 0.0;
}
if (Val != -1.0 && Val != 1.0) {
Val = Val - Val.intValue();
}
Double sDouble = new Double(Steps-1);
Double bdStep = 2.0/sDouble;
Double bdRef = bdStep/2.0;
bdRef = bdRef - 1.0;
Double bdInit = -1.0;
Double bdRet = null;
for (int c = 0; c<=sDouble;c++) {
if (Val < bdRef) {
bdRet = bdInit;
break;
} else {
bdInit = bdInit+bdStep;
bdRef = bdRef+bdStep;
}
}
return Math.min(bdRet.doubleValue(),1.0);
}
इस कोड का प्रयास करें, मेरे ध्वनि सही नहीं है लेकिन बहुत समान है।
ग्रेट, बहुत समान है ... – Anita
इस कोड में बहुत सारी अनुपलब्ध घोषणाएं हैं, जो संदिग्ध परिवर्तनीय नाम हैं। कैंट रन पेलेज़ अविकसित varibles घोषित, या कोड से उन्हें हटा दें। अविकसित वैरिएबल का उपयोग बिना किसी मूल्य के कोड में किया जाता है .... अभी, कोड केवल प्रेरित होना है। –