GANSynth

GANSynth is a cutting-edge architecture developed by the Google Magenta team that leverages Generative Adversarial Networks (GANs) to synthesize high-resolution audio. Unlike traditional autoregressive models such as WaveNet, which generate audio sample-by-sample and suffer from high inference latency, GANSynth generates entire audio sequences in parallel. Its primary technical innovation is the application of Progressively Growing GANs (PGGAN) to the frequency domain, specifically using the Short-Time Fourier Transform (STFT) with a focus on Phase Coherence. By modeling 'Instantaneous Frequency' rather than raw phase, GANSynth achieves significantly higher audio quality and pitch consistency than previous GAN-based audio models. In the 2026 landscape, GANSynth remains a foundational open-source framework for developers and researchers building neural synthesizers, offering a pathway to real-time timbre morphing and instrument interpolation that traditional sampling methods cannot replicate. It is primarily utilized within the TensorFlow ecosystem and is highly optimized for GPU acceleration, making it a staple for researchers focused on the intersection of deep learning and digital signal processing.