diagnose_filter.sof

这是一个从音频信号里提取特征参量的程序

@ Sof v1.0 @
' TransformBuilder GUI v2.0

@ AudioFrontEnd 0 @
 input_data_type = SAMPLED_DATA;
 audio_input = {
   sample_frequency = 8000.0;
   file_type = BINARY;
   file_format = RAW;
   byte_order = NATIVE;
   compression_type = LINEAR;
   sample_precision = NONE;
   sample_num_bytes = 2;
   num_channels = 1;
   amplitude_range = 1.0;
};
 frame_duration = 0.01;
 signal_duration = 0.1;
 input_flag = true;
 data_mode = SAMPLE_BASED;

@ Algorithm 0 @
#% 158 65
 name = CoefficientLabel;
 variable = SAMPLED_DATA;
 type = INPUT;

@ Algorithm 1 @
#% 158 158
 name = "Filter";
 algorithm = LTI;
 implementation = CCDE;
 compute_mode = FRAME_INTERNAL;
 ma_coef = 0.5, 0.5;
 ar_coef = 0;
 ma_lag = 0;
 ar_lag = -1.0;
 debug_level = NONE;

@ Algorithm 2 @
#% 154 265
 name = "Output";
 algorithm = DATA;
 implementation = SAMPLED_DATA;
 audio_output = {
   file_type = BINARY;
   file_format = RAW;
   byte_order = NATIVE;
   compression_type = LINEAR;
   sample_precision = NONE;
   sample_num_bytes = 2;
   num_channels = 1;
   amplitude_range = 1.0;
};
 file_extension = raw;
 data_mode = SAMPLE_BASED;
 debug_level = NONE;

@ DiGraph<Long> 0 @
weighted = true;
vertices =
        {0, {0}},
        {1, {1}},
        {2, {2}};
arcs =
        {0, 1, 0},
        {1, 2, 0};