jik876/hifi-gan

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2367 stars · 557 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

The official PyTorch implementation of HiFi-GAN, a generative adversarial network that converts mel-spectrograms into high-fidelity 22.05 kHz audio faster than real time on a single GPU. It ships with training scripts, multiple generator configurations, and pretrained checkpoints for LJSpeech and VCTK, including versions fine-tuned for Tacotron2 and universal multi-speaker use.

Use cases

• convert mel-spectrograms to audio waveforms
• add a vocoder to a text-to-speech pipeline
• generate high fidelity speech from spectrograms
• train a GAN vocoder on my own dataset
• download a pretrained vocoder model
• run real-time speech synthesis on GPU or CPU
• fine-tune a vocoder for Tacotron2 output

When to choose

• You need a proven, high-quality vocoder with ready-to-use pretrained checkpoints (LJSpeech, VCTK, Tacotron2 fine-tuned)
• You want faster-than-real-time waveform generation, including a small-footprint model that runs 13x faster than real time on CPU
• You are reproducing the HiFi-GAN paper or building research on top of it
• You work in Python/PyTorch and want reference training and inference code

When to avoid

• You need a complete end-to-end TTS system - this is a vocoder only, with no text normalization, phonemization, or acoustic model included
• You need ONNX, TensorFlow, or non-Python deployment support - the official code is PyTorch-only
• You require guaranteed ongoing maintenance or new features - the repo is a research artifact updated sporadically
• You need production streaming or low-latency chunked inference support out of the box

Facets

library · maturity stable

tts audio-processing machine-learning deep-learning speech-processing deep-learning machine-learning artificial-intelligence python cli cross-platform vocoder gan speech-synthesis mel-spectrogram-inversion pytorch pretrained-models text-to-speech research-implementation audio gpu

Member repositories

For agents

markdown · JSON · MCP: product_card(name="jik876/hifi-gan")