VoxCPM2 Bedtime LoRA

Evaluation (6 experiments)

Demo Audio

English bedtime stories (VoxCPM2)

LoRA vs Stock comparison

Reference voice

• reference_voice.wav — voice used for cloning

Files

• lora_weights.safetensors — LoRA adapter weights (12.8 MB)
• lora_config.json — LoRA configuration
• training_state.json — Training state

Part of DreamVoice

DreamVoice — bedtime stories in a parent's cloned voice.

--- language: en license: mit tags: - voice-cloning - text-to-speech - lora - bedtime-stories - voxcpm2 base_model: openbmb/VoxCPM2 --- # VoxCPM2 Bedtime Story LoRA LoRA adapter fine-tuned on VoxCPM2 for bedtime story narration in English. ## Training - **Base**: `openbmb/VoxCPM2` - **Dataset**: LJSpeech (6,550 clips, ~12h — half-data experiment) - **Method**: LoRA (r=32, alpha=64, targeting DiT attention layers) - **Best**: exp6 (r=32, lr=5e-5, half data) — val loss 0.872 - **GPU**: A100-80GB via Modal ## Evaluation (6 experiments) | Exp | Config | Train Loss | Val Loss | |-----|--------|-----------|----------| | exp1 | r32, lr=1e-4 | 0.823 | 0.918 | | exp2 | r16, lr=5e-5 | 0.765 | 0.899 | | exp3 | r64, lr=1e-4 | 0.838 | 0.908 | | exp4 | r32, lr=5e-5, 200 steps | 0.803 | 0.884 | | exp5 | r32, lr=2e-4 | 0.832 | 0.896 | | **exp6** | **r32, lr=5e-5, half data** | **0.935** | **0.872** | ## Demo Audio ### English bedtime stories (VoxCPM2) | Mood | Audio | |------|-------| | Magical | [english_magical_mid.wav](samples/english_magical_mid.wav) | | Funny | [english_funny_high.wav](samples/english_funny_high.wav) | | Calming | [english_calming_low.wav](samples/english_calming_low.wav) | | Dreamy | [english_dreamy_low.wav](samples/english_dreamy_low.wav) | ### LoRA vs Stock comparison | Type | Audio | |------|-------| | Stock VoxCPM2 | [comparison_stock_0.wav](samples/comparison_stock_0.wav) | | LoRA exp6 | [comparison_lora_exp6_0.wav](samples/comparison_lora_exp6_0.wav) | ### Reference voice - [reference_voice.wav](samples/reference_voice.wav) — voice used for cloning ## Files - `lora_weights.safetensors` — LoRA adapter weights (12.8 MB) - `lora_config.json` — LoRA configuration - `training_state.json` — Training state ## Part of DreamVoice [DreamVoice](https://huggingface.co/spaces/build-small-hackathon/dreamvoice) — bedtime stories in a parent's cloned voice.