about filter_dc_notch16

[zxj329]

hello,actor:
firstly, thanks to ur code。
and i want to ask u a question about the function "filter_dc_notch16", i dont know what is used for.loonking forward to ur replay

[changxuding]

hello,actor:
firstly, thanks to ur code。
and i want to ask u a question about the function "filter_dc_notch16", i dont know what is used for.loonking forward to ur replay

hi,
this funtion comes directly from speex for removing DC

[zxj329]

thxs to ur reply。 but i have an another question，i want to change the parameter "frame_size" and i find u have "win_para_update.mat” fixed， can u tell me the formaluation of window function, looking forward to ur replay.thx again.

[changxuding]

thxs to ur reply。 but i have an another question，i want to change the parameter "frame_size" and i find u have "win_para_update.mat” fixed， can u tell me the formaluation of window function, looking forward to ur replay.thx again.

The proto-filter here is generated by window method, which satisfied oversampled filter bank in this case.