biquad filter integrating

[choya8152]

Hi...

I'm integrating a equalizer on Xs1-G04 using the sc_dsp_filters.

filter is biquad filter...

i'm testing the 1Khz sine wave..

but, after filtering...waveform is crashing ...

conefficients setting :
FILTER= '-min -20 -max 20 -step 1 -bits 24 -low 632 -fs 44100'

And Configrations..
Codec : sampling : 44100, 24bit

biquadState bs;
initBiquads(bs, 20);
.......
bs.desiredDb[0] = 10;

iSampleIn = g_iSine[0][iSineInOffset];

if( iLrcVal == AUDIO_RIGHT )
{
//iSineInOffset = ((iSineInOffset+1)<SINE_SIZE)?(iSineInOffset+1):0;
iSineInOffset = ((iSineInOffset+1)<g_iNumSine[0])?(iSineInOffset+1):0;
}

iSampleIn = biquadCascade(bs, iSampleIn);

outSpk( iSampleIn );
................................................................................
Sine Wave code
0x011555,0x02250B,0x0329A1,0x041DCF,0x04FCA2,
0x05C195,0x0668AC,0x06EE84,0x075065,0x078C55,
0x07A11C,0x078E4F,0x07544F,0x06F448,0x06702E,
0x05CAAE,0x050721,0x04297F,0x033645,0x023262,
0x012319,0x000DE9,0xFEF872,0xFDE852,0xFCE30D,
0xFBEDEE,0xFB0DED,0xFA4795,0xF99EEA,0xF91757,
0xF8B39B,0xF875BD,0xF85EFC,0xF86FCF,0xF8A7DF,
0xF90609,0xF98864,0xFA2C4C,0xFAEE6F,0xFBCADE,
0xFCBD20,0xFDC04E,0xFECF26,0xFFE42C,
................................................................................

[srinie]

but, after filtering...waveform is crashing ...

Outputs in your attachments does not provide much info about crash - can you share the crash trace that you are getting?

[choya8152]

but, after filtering...waveform is crashing ...

Outputs in your attachments does not provide much info about crash - can you share the crash trace that you are getting?

Sorry, i'm mistake...
This Attachment files is result of output.
It was input the -45dbm for all frequencies(20Hz~20kHz). so, all frequencies of "before.png" are flat. but, "After.png" not have a flat. I'm think that it is incorrect a signal(crash). I believe that it should be displayed like as red line in attachment file.(i want to output of high pass filter..)