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Neural DSP Tools: Bridging Differentiable Signal Processing and Real-Time Audio Applications

[Generated by AI] Date: April 17, 2026 Abstract The emergence of deep learning has given rise to "Neural DSP Tools"—systems that integrate differentiable digital signal processing (DDSP) with neural architectures for audio effects, synthesis, and instrument modeling. Unlike traditional black-box neural audio synthesis, Neural DSP Tools leverage prior knowledge of DSP structures (filters, delays, waveshapers) while using neural networks to control parameters nonlinearly. This paper defines the architecture, training paradigms, and applications of such tools, focusing on their advantages in interpretability, sample efficiency, and real-time performance. 1. Introduction Conventional digital signal processing (DSP) offers precise, deterministic control (e.g., a biquad filter with cutoff frequency $f_c$). However, designing parameters for complex effects (e.g., dynamic distortion or amp modeling) requires expert heuristics. Conversely, pure neural black-box models (WaveNet, GANSynth) produce high-quality audio but are computationally heavy and lack interpretable controls. neural dsp tool