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Dynamic Low, High and Band pass filter

4.5 | 4 ratings Rate this file 10 Downloads (last 30 days) File Size: 72.6 KB File ID: #31985 Version: 1.8
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Dynamic Low, High and Band pass filter


Gaurav Gupta (view profile)


28 Jun 2011 (Updated )

An application to dynamically filter signal (sound) with interactive drag of mouse

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This application aims to show visually the effects of filter frequency change on signal.It is provided with dynamic filter which can change its low and high frequencies by user mouse drag.

References :
Digital Signal Processing by Li Tan


Dragzoom Drag And Zoom Tool inspired this file.

MATLAB release MATLAB 7.12 (R2011a)
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Comments and Ratings (5)
06 Oct 2016 Jin L

Jin L (view profile)

26 Jul 2012 Peter De Ford

02 Feb 2012 kim yeongmin

Oh, that is a good resource.

29 Jun 2011 Gaurav Gupta

Gaurav Gupta (view profile)

yeah, perhaps you should use LF (or HF) box to input exact and low (or high) frequencies

Comment only
29 Jun 2011 Steffen B. Petersen

very nice work.
One suggestion: left limit of the bandpass filter (green dot) is trapped, and cannot be controlled with the mouse, if you want to move it towards lower frequencies.

29 Jun 2011 1.2

fixed problem of extreme frequencies selection by mouse

30 Jul 2011 1.6

Minimum bandwidth updated, edit boxes directly connected to filter output process

27 Jan 2012 1.7

New features like cursors are introduced where user can see values of signal at any point.
Further inbuilt audio player has been introduced to listen to input and filtered output to realize difference user has made on signal.

08 Feb 2012 1.8

Fixed icon bug

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