Improving GPD Pocket 4 Speaker Sound: PipeWire and Convolution DSP Magic
2025-04-09
Modern laptop speakers rely heavily on digital signal processing (DSP) to sound good. The author measured the frequency response of the GPD Pocket 4's built-in speakers using Room EQ Wizard, revealing a noticeable resonance peak at ~4kHz causing harshness. By generating a convolution filter's impulse response with REW and leveraging the PipeWire audio server, the author compensated for this flaw, significantly improving sound quality, mirroring similar optimizations done by the Asahi Linux project for Apple Silicon MacBooks.
Hardware
convolution DSP