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Unable to resolve the name audio.inte​rnal.visua​lizer.Filt​er.

조회 수: 11 (최근 30일)
Jens Ahrens
Jens Ahrens 2020년 9월 27일
편집: Gabriele Bunkheila 2024년 6월 5일 17:17
Hello!
I keep getting the following error when executing the script AudioSystemToolboxIntroMain.m that accopanies the webinar "Real-time Audio Processing for Algorithm Prototyping and Custom Measurements" (https://se.mathworks.com/videos/real-time-audio-processing-for-algorithm-prototyping-and-custom-measurements-121075.html):
(Executing RealTimeStreaming.m works.)
Unable to resolve the name audio.internal.visualizer.Filter.
Error in ThreeBandParamEQ/visualize (line 122)
obj.visualObj = audio.internal.visualizer.Filter(coeffs,...
Error in AudioSystemToolboxIntroMain (line 10)
visualize(eq)
I believe that I have all required toolboxes installed:
>> ver
-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.9.0.1467703 (R2020b)
MATLAB License Number: XXX
Operating System: Mac OS X Version: 10.15.7 Build: 19H2
Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------
MATLAB Version 9.9 (R2020b)
Simulink Version 10.2 (R2020b)
Antenna Toolbox Version 4.3 (R2020b)
Audio Toolbox Version 2.3 (R2020b)
Computer Vision Toolbox Version 9.3 (R2020b)
Curve Fitting Toolbox Version 3.5.12 (R2020b)
DSP System Toolbox Version 9.11 (R2020b)
Image Acquisition Toolbox Version 6.3 (R2020b)
Image Processing Toolbox Version 11.2 (R2020b)
MATLAB Compiler Version 8.1 (R2020b)
MATLAB Compiler SDK Version 6.9 (R2020b)
Optimization Toolbox Version 9.0 (R2020b)
Phased Array System Toolbox Version 4.4 (R2020b)
Signal Processing Toolbox Version 8.5 (R2020b)
Statistics and Machine Learning Toolbox Version 12.0 (R2020b)
Symbolic Math Toolbox Version 8.6 (R2020b)
I've tried
rehash toolboxcache
and reverting pathdef.m without success.
Thanks!

채택된 답변

Gabriele Bunkheila
Gabriele Bunkheila 2020년 9월 28일
편집: Gabriele Bunkheila 2024년 6월 5일 17:17
This code was indeed last updated when its accompanying video was recorded. I understand we decided to kept the two "in sync" to let the code match what's seen in the video.
The documentation of Audio Toolbox these days includes many examples illustrating these and more workflows and I would encourage to refer to those first.
If you are still interested in using this code with a more recent MATLAB release, you can try to upgrade it yourself by replacing the discontinued helper object audio.internal.visualizer.Filter with the newer dsp.DynamicFilterVisualizer. Other small updates may be necessary.
If getting a working version of this code is important to you and you can't easily fix yourself, please message me privately and I will do my best to help.
  댓글 수: 9
Wenkang Liu
Wenkang Liu 2022년 9월 22일
Hi, I got the same problem. it shows
' Unable to resolve name: 'audio.internal.visualizer.Filter' '
Could I get more infos about that?
Timo Grothe
Timo Grothe 2024년 6월 4일 10:52
Hi Mr. Bunkheila, I too am having this problem many months later. If it is not too much trouble, could create a new download link to share the new version? Thank you.

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추가 답변 (1개)

luchen
luchen 2020년 11월 2일
Hello Jens, I got the same error when running the code, and I really need it to do my research. Could you please share the latest version of the code to me? Thanks!

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