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2 cards from this section. Quick, good the night before a test.
What is the purpose of the FFT in signal processing?
Think about what information the frequency domain provides.
What does a spectrogram illustrate?
Recall our discussion about visual representations of audio signals.
What does FFT stand for?
Consider what FFT helps us accomplish in signal processing.
True or False: A spectrogram can show how frequencies change over time.
Reflect on our conversations about visual analysis of audio.
You are given a complex audio signal with unknown frequency components. Describe the steps you would take using MATLAB to analyze this signal using the FFT and visualize it through a spectrogram.
Remember to consider sampling rate and windowing techniques for accurate analysis.
Explain how real-time processing using FFT can benefit live audio applications. What challenges might arise?
Think about the relationship between signal quality and processing speed.
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