for (i=0;i<frameSize;i++) excTmp[2*i]=2*excBuf[excIdx+i];
for (i = 0; i < frameSize; i++) excTmp[2 * i] = 2.0f * excBuf[excIdx + i];
  public float[] getExc()  {    int i;    float[] excTmp = new float[fullFrameSize];    for (i=0;i<frameSize;i++)      excTmp[2*i]=2*excBuf[excIdx+i];    return excTmp;  }