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# Examples

In this section we will first introduce some easy-to-use prefabricated filters available in Pd to develop examples showing applications from the previous section. Then we will show some more sophisticated applications that require specially designed filters.

Subsections

- Prefabricated low-, high-, and band-pass filters
- Prefabricated time-varying band-pass filter
- Envelope followers
- Single sideband modulation
- Using elementary filters directly: shelving and peaking
- Making and using all-pass filters