# X-VC voice conversion on Athena

Isolated quality gate for `chenxie95/X-VC`, using the official inference path
from commit `49df8c591eafc48b096e466d96f9839f9c0dd739`. The UI is adapted from the
public Hugging Face Space at commit
`d761cd6421e85376b2656dfefd8471d7f35a42be` and runs locally without
ZeroGPU.

- Private URL: `http://192.168.1.212:8009`
- Source clip: speech content and timing to preserve
- Reference clip: target speaker identity
- Output: native 16 kHz PCM WAV plus optional Resemble-Enhance restoration at 44.1 kHz
- GPU: RTX 5080 only
- Persistent cache: `/data/voice/xvc/huggingface`
- Code and model license: MIT

The semantic tokenizer documents Chinese and English. German is therefore a
quality gate, not an assumed supported language. Keep OmniVoice installed: it
does text-to-speech cloning, while X-VC tests true audio-to-audio conversion.

Technical acceptance on 9 September 2026 used the repository's source and
target examples: 5.20 seconds were converted in 1.07 seconds (RTF 0.21). The
result was valid mono PCM WAV at 16 kHz, and the loaded process occupied about
2.9 GiB on the RTX 5080. German listening quality remains open.

The optional high-quality path uses `resemble-enhance` 0.0.1 with model
revision `4e3510ce4a8391159f665903544c5150bee7b2cb`. It does not change X-VC's
native 16-kHz architecture. Instead, it reconstructs missing speech bandwidth
after conversion and writes a second 44.1-kHz WAV. The UI always retains the
native output for an honest A/B comparison.