Hey guys – this is my first post, as im just starting a new electrical project..
I am not overly comfortable with electrical basics, the purpose of this being to further my understanding...
Im basically attempting to build a bandpass op-amp filter.
I have basically decided to base my design around the 'Single Op-Amp Bandpass Filter' found here..
**broken link removed**
I’ve just got my head around discerning the values of the resistors, and how they denote the frequency cut offs of the filter.
The design is for potentially for an outboard effects rack for use in post production in an audio studio.
Due to this I understand theres to be considerations concerning accepting line level, and spitting out line level, but am unsure how to design these input/output stages, concerning the standard impedances of the connected equipment..
Powering is also a gray area for me, as I am unsure how to incorporate the 9V battery I am hoping to use. At the moment I have the positive pin connected to the first input resistor, and the negative to ground, is this correct?
This is all being designed in Edwin at the moment, which is also presenting a steep learning curve for me, I will happily add a screenshot if you guys think it’d be helpful.
I am also unsure how Slope per octave (order etc) of the filter is designed within the filter itself. Any advice would be greatly appreciated!
The view is to eventually build the device, with possibly extra sections being added such as a potentiometer gain control, or tonal controls, although im aware this will require a lot of extra work, so for now, I just want to build a working input/output model that can be simulated within Edwin.
Thanks in advance for taking the time to read this post,
Any guidance or advice would be very gratefully received..
If theres anything else I can clarify, I will happily try!
Thanks again,
Rob
I am not overly comfortable with electrical basics, the purpose of this being to further my understanding...
Im basically attempting to build a bandpass op-amp filter.
I have basically decided to base my design around the 'Single Op-Amp Bandpass Filter' found here..
**broken link removed**
I’ve just got my head around discerning the values of the resistors, and how they denote the frequency cut offs of the filter.
The design is for potentially for an outboard effects rack for use in post production in an audio studio.
Due to this I understand theres to be considerations concerning accepting line level, and spitting out line level, but am unsure how to design these input/output stages, concerning the standard impedances of the connected equipment..
Powering is also a gray area for me, as I am unsure how to incorporate the 9V battery I am hoping to use. At the moment I have the positive pin connected to the first input resistor, and the negative to ground, is this correct?
This is all being designed in Edwin at the moment, which is also presenting a steep learning curve for me, I will happily add a screenshot if you guys think it’d be helpful.
I am also unsure how Slope per octave (order etc) of the filter is designed within the filter itself. Any advice would be greatly appreciated!
The view is to eventually build the device, with possibly extra sections being added such as a potentiometer gain control, or tonal controls, although im aware this will require a lot of extra work, so for now, I just want to build a working input/output model that can be simulated within Edwin.
Thanks in advance for taking the time to read this post,
Any guidance or advice would be very gratefully received..
If theres anything else I can clarify, I will happily try!
Thanks again,
Rob