void lowpass_biquad_filter(int32_t inL, int32_t inR, uint8_t filter_index, uint8_t type, float centerFreq, float Q, float BW, float S)
{
  	inBufL[filter_index][0] =(float)((float)inL / 32767);
	inBufR[filter_index][0] =(float)((float)inR / 32767);

	outputL[filter_index] = (lowpass_b0/lowpass_a0) * inBufL[filter_index][0] +
		  			(lowpass_b1/lowpass_a0) * inBufL[filter_index][1] +
					(lowpass_b2/lowpass_a0) * inBufL[filter_index][2] -
					(lowpass_a1/lowpass_a0) * outBufL[filter_index][1] -
					(lowpass_a2/lowpass_a0) * outBufL[filter_index][2];

	outBufL[filter_index][2] = outBufL[filter_index][1];
	outBufL[filter_index][1] = outputL[filter_index];
	inBufL[filter_index][2] = inBufL[filter_index][1];
	inBufL[filter_index][1] = inBufL[filter_index][0];

	outputR[filter_index] = (lowpass_b0/lowpass_a0) * inBufR[filter_index][0] +
		  			(lowpass_b1/lowpass_a0) * inBufR[filter_index][1] +
					(lowpass_b2/lowpass_a0) * inBufR[filter_index][2] -
					(lowpass_a1/lowpass_a0) * outBufR[filter_index][1] -
					(lowpass_a2/lowpass_a0) * outBufR[filter_index][2];

	outBufR[filter_index][2] = outBufR[filter_index][1];
	outBufR[filter_index][1] = outputR[filter_index];
	inBufR[filter_index][2] = inBufR[filter_index][1];
	inBufR[filter_index][1] = inBufR[filter_index][0];

	outbuffer_1[0] = (int32_t)(outputL[filter_index] * preset[active_file].lowpass_gain_knob*1000);
	outbuffer_1[1] = (int32_t)(outputR[filter_index] * preset[active_file].lowpass_gain_knob*1000);
}

void highpass_biquad_filter(int32_t inL, int32_t inR, uint8_t filter_index, uint8_t type, float centerFreq, float Q, float BW, float S)
{
  	inBufL[filter_index][0] =(float)((float)inL / 32767);
	inBufR[filter_index][0] =(float)((float)inR / 32767);

	outputL[filter_index] = (highpass_b0/highpass_a0) * inBufL[filter_index][0] +
		  			(highpass_b1/highpass_a0) * inBufL[filter_index][1] +
					(highpass_b2/highpass_a0) * inBufL[filter_index][2] -
					(highpass_a1/highpass_a0) * outBufL[filter_index][1] -
					(highpass_a2/highpass_a0) * outBufL[filter_index][2];

	outBufL[filter_index][2] = outBufL[filter_index][1];
	outBufL[filter_index][1] = outputL[filter_index];
	inBufL[filter_index][2] = inBufL[filter_index][1];
	inBufL[filter_index][1] = inBufL[filter_index][0];

	outputR[filter_index] = (highpass_b0/highpass_a0) * inBufR[filter_index][0] +
		  			(highpass_b1/highpass_a0) * inBufR[filter_index][1] +
					(highpass_b2/highpass_a0) * inBufR[filter_index][2] -
					(highpass_a1/highpass_a0) * outBufR[filter_index][1] -
					(highpass_a2/highpass_a0) * outBufR[filter_index][2];

	outBufR[filter_index][2] = outBufR[filter_index][1];
	outBufR[filter_index][1] = outputR[filter_index];
	inBufR[filter_index][2] = inBufR[filter_index][1];
	inBufR[filter_index][1] = inBufR[filter_index][0];

	outbuffer_1[0] = (int32_t)(outputL[filter_index] * preset[active_file].highpass_gain_knob*1000);
	outbuffer_1[1] = (int32_t)(outputR[filter_index] * preset[active_file].highpass_gain_knob*1000);
}