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DirectX 8/9 Frequency

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Yes, but it isn't technically a DirectSound task. You need to run a Fast Fourier Transform (FFT) analysis against the sound data to extract the frequency bands and their phases of a waveform.

While DirectSound doesn't provide any utilities for the actual processing, you can perform FFT analysis real-time by creating a capture buffer and processing chunks of the sound data as it comes along.

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