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Merge branch 'stable' into DEV/INTEGRATE_LIB_CONTROL

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This commit is contained in:
Ross Owen
2016-06-24 16:27:39 +01:00
parent 645209a97b d5a8739021
commit bc778fde41
1 changed files with 12 additions and 2 deletions
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14
module_usb_audio/pdm_mics/pdm_mic.xc
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@@ -57,8 +57,18 @@ void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio)
c_audio :> samplerate;
unsigned decimationfactor = 96000/samplerate;
int fir_gain_compen[7];
unsafe
{
fir_gain_compen[0] = 0;
fir_gain_compen[1] = FIR_COMPENSATOR_DIV_2;
fir_gain_compen[2] = FIR_COMPENSATOR_DIV_4;
fir_gain_compen[3] = FIR_COMPENSATOR_DIV_6;
fir_gain_compen[4] = FIR_COMPENSATOR_DIV_6;
fir_gain_compen[5] = 0;
fir_gain_compen[6] = FIR_COMPENSATOR_DIV_12;
fir_coefs[0] = 0;
fir_coefs[1] = g_third_stage_div_2_fir;
fir_coefs[2] = g_third_stage_div_4_fir;
@@ -75,7 +85,7 @@ void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio)
dcc.output_decimation_factor = decimationfactor;
dcc.coefs = fir_coefs[decimationfactor/2];
dcc.apply_mic_gain_compensation = 0;
dcc.fir_gain_compensation = 0;
dcc.fir_gain_compensation = fir_gain_compen[decimationfactor/2];
dcc.buffering_type = DECIMATOR_NO_FRAME_OVERLAP;
dcc.number_of_frame_buffers = 2;
@@ -148,7 +158,7 @@ void pdm_buffer(streaming chanend c_ds_output[2], chanend c_audio)
decimationfactor = 96000/samplerate;
dcc.output_decimation_factor = decimationfactor;
dcc.coefs=fir_coefs[decimationfactor/2];
dcc.fir_gain_compensation = fir_gain_compen[decimationfactor/2];
mic_array_decimator_configure(c_ds_output, 2, dc);
mic_array_init_time_domain_frame(c_ds_output, 2, buffer, mic_audio, dc);