{
  "schema_version": 1,
  "family": "dramabox",
  "display_name": "DramaBox",
  "description": "DramaBox is an English expressive TTS and voice-cloning model packaged for audio.cpp as a standalone GGUF bundle. It combines Gemma text conditioning, diffusion sampling, reference-audio conditioning, long-form chunking, and 48 kHz stereo output.",
  "category": "tts",
  "status": "experimental",
  "tasks": [
    "tts",
    "clone"
  ],
  "modes": [
    "offline"
  ],
  "languages": [
    "en"
  ],
  "runtime": {
    "tags": [
      "gguf"
    ]
  },
  "capabilities": {
    "tts": [
      "speaker_reference",
      "style_control",
      "long_form"
    ],
    "clone": [
      "speaker_reference",
      "style_control",
      "long_form"
    ]
  },
  "options": {
    "request": [
      {
        "name": "target_voice",
        "type": "audio_path",
        "description": "Reference voice WAV path for voice cloning. If omitted, DramaBox generates from text without reference-audio conditioning.",
        "required": false
      },
      {
        "name": "negative_prompt",
        "type": "string",
        "description": "Negative text conditioning used when guidance_scale enables classifier-free guidance; omitted uses the built-in quality prompt.",
        "required": false
      },
      {
        "name": "duration_sec",
        "type": "float",
        "description": "Explicit target duration in seconds; default 0 uses the prompt-duration estimator.",
        "required": false,
        "min": 0.0,
        "default": 0.0
      },
      {
        "name": "num_inference_steps",
        "type": "int",
        "description": "Diffusion sampling step count; default comes from config.json, 30 in the current package.",
        "required": false,
        "min": 1,
        "default": 30
      },
      {
        "name": "guidance_scale",
        "type": "float",
        "description": "Classifier-free guidance scale; default comes from config.json, 2.5 in the current package. Values greater than 1 enable CFG.",
        "required": false,
        "min": 0.0,
        "default": 2.5
      },
      {
        "name": "spatio_temporal_guidance_scale",
        "type": "float",
        "description": "Spatio-temporal guidance scale; default comes from config.json, 1.5 in the current package. Values greater than 0 enable STG.",
        "required": false,
        "min": 0.0,
        "default": 1.5
      },
      {
        "name": "duration_scale",
        "type": "float",
        "description": "Multiplier applied to the estimated prompt duration when duration_sec is 0; default comes from config.json, 1.1 in the current package.",
        "required": false,
        "min": 0.0,
        "default": 1.1
      },
      {
        "name": "reference_duration_sec",
        "type": "float",
        "description": "Reference voice crop/repeat duration in seconds; default comes from config.json, 10.0 in the current package.",
        "required": false,
        "min": 0.0,
        "default": 10.0
      },
      {
        "name": "guidance_rescale",
        "type": "string",
        "description": "Guidance rescale value. The default auto mode derives a rescale value from guidance_scale; a numeric string requests an explicit value.",
        "required": false,
        "default": "auto"
      },
      {
        "name": "audio_chunk_threshold_sec",
        "type": "float",
        "description": "Estimated duration threshold that switches a request to long-form chunking; default 45.0 seconds.",
        "required": false,
        "min": 0.0,
        "default": 45.0
      },
      {
        "name": "audio_chunk_duration_sec",
        "type": "float",
        "description": "Target estimated duration for each long-form chunk; default 37.0 seconds.",
        "required": false,
        "min": 0.0,
        "default": 37.0
      },
      {
        "name": "cross_fade_duration_sec",
        "type": "float",
        "description": "Equal-power cross-fade between long-form chunks in seconds; default 0.05.",
        "required": false,
        "min": 0.0,
        "default": 0.05
      },
      {
        "name": "seed",
        "type": "int",
        "description": "Torch-compatible CUDA noise seed for diffusion sampling; default 42.",
        "required": false,
        "min": 0,
        "default": 42
      }
    ],
    "session": [
      {
        "name": "perf_mode",
        "type": "enum",
        "description": "Attention implementation mode. Default off keeps the exact reference-query attention path; flash_attention enables the optimized path.",
        "values": [
          "off",
          "flash_attention"
        ],
        "required": false,
        "default": "off"
      },
      {
        "name": "mem_saver",
        "type": "bool",
        "description": "Release staged runtime graphs and weights immediately after each request phase to reduce peak and resident VRAM; default false keeps components cached for later reuse.",
        "required": false,
        "default": false
      }
    ],
    "load": []
  },
  "package_defaults": {
    "download": {
      "kind": "huggingface_snapshot",
      "repo": "audio-cpp/audio.cpp-gguf",
      "revision": "main",
      "gated": false
    }
  },
  "packages": [
    {
      "id": "dramabox_q8_0",
      "display_name": "DramaBox Q8_0 GGUF",
      "default": true,
      "format": "gguf",
      "precision": "q8_0",
      "target_directory": "DramaBox-GGUF",
      "files": [
        "DramaBox-GGUF/dramabox-q8_0.gguf"
      ],
      "strip_prefix": "DramaBox-GGUF"
    }
  ],
  "dependencies": [],
  "ui": {
    "recommended_package": "dramabox_q8_0",
    "tags": [
      "TTS",
      "Clone",
      "GGUF"
    ],
    "docs": [
      "docs/tts.md",
      "docs/gguf.md"
    ]
  },
  "sources": [
    {
      "format": "gguf",
      "roots": {
        "model": ".",
        "weights": "$gguf"
      },
      "files": {
        "config": "model:config.json",
        "audio_components_config": "model:audio_components_config.json",
        "gemma_config": "model:gemma-3-12b-it-bnb-4bit/config.json",
        "gemma_tokenizer_model": "model:gemma-3-12b-it-bnb-4bit/tokenizer.model",
        "gemma_tokenizer_json": "model:gemma-3-12b-it-bnb-4bit/tokenizer.json",
        "gemma_tokenizer_config": "model:gemma-3-12b-it-bnb-4bit/tokenizer_config.json"
      },
      "tensors": {
        "dit_weights": {
          "source": "weights:",
          "prefix": "dit"
        },
        "audio_weights": {
          "source": "weights:",
          "prefix": "audio"
        },
        "gemma_weights": {
          "source": "weights:",
          "prefix": "gemma"
        },
        "silence_latent": {
          "source": "weights:",
          "prefix": "silence"
        }
      }
    }
  ]
}