1 / 10

EE 445S Real-Time Digital Signal Processing Lab Spring 2012

EE 445S Real-Time Digital Signal Processing Lab Spring 2012. Lab 7 Guitar Special Effects Chao Jia. Outline. Comb filters Allpass filters Notch filters Special effects with filters Other effects. Comb filters. FIR comb filter (single echo). Number of stopbands is R/2. Comb filters.

Download Presentation

EE 445S Real-Time Digital Signal Processing Lab Spring 2012

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. EE 445S Real-Time Digital Signal Processing LabSpring 2012 Lab 7Guitar Special Effects Chao Jia

  2. Outline • Comb filters • Allpass filters • Notch filters • Special effects with filters • Other effects

  3. Comb filters • FIR comb filter (single echo) Number of stopbands is R/2

  4. Comb filters • IIR comb filter (multiple echoes)

  5. Allpass filters

  6. Notch filters

  7. Some special effects • Echo • FIR or IIR comb filters • Delay > 100ms • Flanging • FIR comb filter with (periodically) varying delay • Delay between 1ms and 10ms

  8. Some special effects • Chorus • Several independent comb filters

  9. Some special effects • Reverb • Mimic a enclosed space (lots of echoes)

  10. Other effects • Special effects can also be generated by altering the amplitude of the signal. • Tremolo • Repetitive up/down variation in the volume • Fuzz • Intentionally introduced distortion like clipping

More Related