Turning Overlap-Save into a Multiband, Mixing, Downsampling Filter Bank

This chapter contains sections titled:

• Something Old and Something New

• Review of Fast Convolution

• Choosing FFT Size: Complexity is Related to Filter Length and Overlap Factor

• Filtering Multiple Channels: Reuse the Forward FFT

• Frequency Domain Downsampling: Aliasing is Your Friend

• Mixing and OS Filtering: Rotate the Frequency Domain for Coarse Mixing

• Putting it All Together

• Food for Thought

• Conclusions

• Editor Comments

• References

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