Voltage controlled filter: Difference between revisions
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Common filter types used in audio synthesis include: |
Common filter types used in audio synthesis include: |
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* Low-pass (high-cut) filter |
* Low-pass (high-cut) filter - removes higher frequencies |
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* High-pass (low-cut) filter |
* High-pass (low-cut) filter - removes lower frequencies |
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* Band-pass filter |
* Band-pass filter - removes frequencies outside a given band |
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* Notch filter |
* Notch filter - removes frequencies within a given band |
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* Shelf filters |
* Shelf filters - raise or lower frequencies above or below a cut off point. |
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* Peak filters |
* Peak filters - raise frequencies within a given band |
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* Formant filters |
* Formant filters - raise multiple peaks, often in such a way that they mimic the human voice. |
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* State variable filters - e.g. include simultaneous low-pass, high-pass and band pass outputs as well as voltage controllable cut off frequency and resonance (Q) |
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There are many ways to implement most filters, and each has its own specific audio characteristics or flavour. Some common features across most filter types include: |
There are many ways to implement most filters, and each has its own specific audio characteristics or flavour. Some common features across most filter types include: |