All Pass Filter Explained In 1 Video: The Ultimate DSP Tool [AudioFX

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Hi, my name is Jan Wilczek and I am an audio programmer and a researcher. Welcome to WolfSound!

WolfSound's mission is to provide high-quality, informative, and entertaining videos, articles, and courses on how to process sound by exploring mathematics, applying algorithms, and creating code in various programming languages. Topics include sound synthesis, digital signal processing, programming languages for audio (C, C++, Python, Rust), and audio effects. I am also sharing tips on how to learn fast and effectively. Make sure to visit https://www.thewolfsound.com/.

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In this video, we are discussing digital all-pass filters. You will learn:
✅ what is an all-pass filter,
✅ what are the types of all-pass filters,
✅ what is their phase response,
✅ what are their applications in digital signal processing, and
✅ how to implement them.

I apologize for the audio quality in this video: no fix in the mix could correct the recording errors. I hope you'll understand 😉

In case of any doubt in understanding, please, refer to the article above or ask a question in the comments 🙂

ABOUT ME

My name is Jan Wilczek. I am an audio programmer, a researcher in the field of music technology, and a musician. Through articles and videos from WolfSound, you will easily understand the main concepts of sound processing using software. My full story:    • How I Got Started With Audio Programm...  

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TIME CODES

00:00 Introduction
01:00 Video outline
01:33 All-pass filter definition
02:20 FIR all-pass filter
03:08 First-order IIR all-pass filter
04:15 Phase response of the first-order IIR all-pass filter
05:51 First-order IIR all-pass filter applications
06:03 Recap of first-order IIR all-pass filter properties
06:39 Second-order IIR all-pass filter
07:15 Phase response of the second-order IIR all-pass filter
08:24 Second-order IIR all-pass filter applications
08:35 Second-order IIR all-pass filter properties summary
09:05 Higher-order IIR all-pass filters?
09:33 Summary

#dsp #filters