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Simple Lowpass and Highpass Filters with Python Implementation [AudioFX #009]
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Hi, my name is Jan Wilczek. I am an audio programmer and a researcher. Welcome to WolfSound!
WolfSound enables everybody to learn about audio programming!
ABOUT THE VIDEO
In this video, I present allpass-based lowpass and highpass filter structures with real-time cutoff frequency control.
You will learn
💡 What is the problem with most IIR filter design methods when it comes to music applications,
💡 What are lowpass, highpass, and allpass filters,
💡 How can we use allpass filters to design real-time controllable lowpass and highpass filters,
💡 How to implement the resulting structure in the Python programming language.
In case of any doubt in understanding, please, refer to the article above or ask a question in the comments 🙂
Video edited by Vadzim Vezhnavets.
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FOLLOW WOLFSOUND ONLINE
TIME CODES
00:00 Introduction
01:34 What is a lowpass filter?
02:07 What is a highpass filter?
02:26 The problem with most IIR lowpass & highpass filter design methods for music
03:15 What is an allpass filter?
05:37 Phase cancellation for the lowpass filter
06:21 Allpass-based lowpass filter structure explained
07:39 Amplitude response of the allpass-based lowpass filter
08:08 Cutoff frequency control
08:42 Allpass-based highpass filter structure explained
09:43 Amplitude response of the allpass-based highpass filter
10:19 Python implementation of the lowpass & highpass filter
14:57 Real-time controlled lowpass filter sound example
15:23 Summary
#python #dsp
Hi, my name is Jan Wilczek. I am an audio programmer and a researcher. Welcome to WolfSound!
WolfSound enables everybody to learn about audio programming!
ABOUT THE VIDEO
In this video, I present allpass-based lowpass and highpass filter structures with real-time cutoff frequency control.
You will learn
💡 What is the problem with most IIR filter design methods when it comes to music applications,
💡 What are lowpass, highpass, and allpass filters,
💡 How can we use allpass filters to design real-time controllable lowpass and highpass filters,
💡 How to implement the resulting structure in the Python programming language.
In case of any doubt in understanding, please, refer to the article above or ask a question in the comments 🙂
Video edited by Vadzim Vezhnavets.
ABOUT ME
FOLLOW WOLFSOUND ONLINE
TIME CODES
00:00 Introduction
01:34 What is a lowpass filter?
02:07 What is a highpass filter?
02:26 The problem with most IIR lowpass & highpass filter design methods for music
03:15 What is an allpass filter?
05:37 Phase cancellation for the lowpass filter
06:21 Allpass-based lowpass filter structure explained
07:39 Amplitude response of the allpass-based lowpass filter
08:08 Cutoff frequency control
08:42 Allpass-based highpass filter structure explained
09:43 Amplitude response of the allpass-based highpass filter
10:19 Python implementation of the lowpass & highpass filter
14:57 Real-time controlled lowpass filter sound example
15:23 Summary
#python #dsp
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Simple Lowpass and Highpass Filters with Python Implementation [AudioFX #009]
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