Normal
Re: FIR filtersMackie and Yamaha had Lake DSP boards that could be fitted to their desks - http://download.yamaha.com/api/asset/file/?language=en&site=ae.yamaha.com&asset_id=53660This picture below may help explain how time and the lumps and bumps in the frequency response of a linear system are related. Mechanical systems such as a speaker operating in its piston range can be modelled like an electrical circuit. If for example, the electrical circuit was a 1/3 oct equalizer (I used an XTA GQ600) then this is what happens when you boost and cut one band by 10dB and correct it with an equal and opposite FIR filter so that the response is flat again. I have not show the amplitude response as we all know what it looks like, but note what happens in the time domain.I set t=0 to 10ms so you could see both sides of the plot.
Re: FIR filters
Mackie and Yamaha had Lake DSP boards that could be fitted to their desks - http://download.yamaha.com/api/asset/file/?language=en&site=ae.yamaha.com&asset_id=53660
This picture below may help explain how time and the lumps and bumps in the frequency response of a linear system are related.
Mechanical systems such as a speaker operating in its piston range can be modelled like an electrical circuit. If for example, the electrical circuit was a 1/3 oct equalizer (I used an XTA GQ600) then this is what happens when you boost and cut one band by 10dB and correct it with an equal and opposite FIR filter so that the response is flat again. I have not show the amplitude response as we all know what it looks like, but note what happens in the time domain.
I set t=0 to 10ms so you could see both sides of the plot.
