acoustic echo cancellation student: yi-chi huang wei chou supervisor: bram cornelis final...
DESCRIPTION
Review Block-LMS FDAF PBFDAFTRANSCRIPT
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Acoustic Echo Cancellation
Student: Yi-Chi Huang Wei ChouSupervisor: Bram Cornelis
Final presentation 4/12/08
![Page 2: Acoustic Echo Cancellation Student: Yi-Chi Huang Wei Chou Supervisor: Bram Cornelis Final presentation 4/12/08](https://reader036.vdocuments.net/reader036/viewer/2022062223/5a4d1b607f8b9ab0599aceb1/html5/thumbnails/2.jpg)
Overview
Review Block-LMS FDAF PBFDAF
Performance(PBFDAF) Constant step-size Adaptive step-size
Conclusion
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Review
Block-LMS
FDAF
PBFDAF
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Performance
Music case
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Performance
Randn caseMic:[1,1,1]Loud speaker [1.2,1.2,1.2]Room dimension [37,37,39]Reflection coeficient [1,1,1,1,1,1]Filter lenght 2048Sampling frequency 8000
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Performance
Randn caseBlock length = 16Near end = randn(100000,1)Far end = randn(100000,1)
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Performance
Randn case
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Performance
Randn case
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Performance
Randn caseCaculate
several times(R) during a block time
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Performance
Randn caseFilter length = 64Block length = 16Near end = randn(100000,1)Far end = randn(100000,1)
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Performance
Randn case
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Performance
Randn case
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Performance
Change Block length
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Performance
Constant step-size
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Performance
Adaptive step-size
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Performance
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Performance
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Reference [1] Eneman, K.; Moonen, M. On Iterating the
Partitioned Block Frequency-Domain Adaptive Filter [2] JOHN J. SHYNK. Frequency-Domain and.
Multirate Adaptive Filtering. [3] Gerald Enzner, Peter Vary. ROBUST AND
ELEGANT, PURELY STATISTICAL ADAPTATION OF ACOUSTIC ECHO CANCELER AND POSTFILTER