character: Ms. Chen
topic: Understanding Filters in Digital Signal Processing
grade: 12
subject: Mathematics
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character: Mr. Smith
topic: Introduction to Signal Processing Techniques
grade: 12
subject: Mathematics
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character: Ms. Lee
topic: Mathematical Concepts in Frequency Analysis
grade: 12
subject: Mathematics
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character: Mr. Johnson
topic: Applications of Digital Filters in Real-World Scenarios
grade: 12
subject: Mathematics
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