voicebox/backend/studio.py

"""
Audio studio module for timeline editing.
"""

from typing import List, Dict, Optional
import numpy as np


class AudioStudio:
    """Audio editing and timeline management."""
    
    async def get_word_timestamps(
        self,
        audio_path: str,
        text: str,
    ) -> List[Dict[str, float]]:
        """
        Get word-level timestamps for audio.
        
        Args:
            audio_path: Path to audio file
            text: Corresponding text
            
        Returns:
            List of word timestamps: [{"word": "...", "start": 0.0, "end": 0.5}, ...]
        """
        # TODO: Implement Whisper alignment
        raise NotImplementedError("Word timestamps not yet implemented")
    
    async def mix_audio(
        self,
        audio_paths: List[str],
        volumes: Optional[List[float]] = None,
    ) -> bytes:
        """
        Mix multiple audio files together.
        
        Args:
            audio_paths: List of audio file paths
            volumes: Optional volume levels (0.0-1.0) for each track
            
        Returns:
            Mixed audio bytes (WAV format)
        """
        # TODO: Implement audio mixing
        raise NotImplementedError("Audio mixing not yet implemented")
    
    async def trim_audio(
        self,
        audio_path: str,
        start: float,
        end: float,
    ) -> bytes:
        """
        Trim audio to specified time range.
        
        Args:
            audio_path: Path to audio file
            start: Start time in seconds
            end: End time in seconds
            
        Returns:
            Trimmed audio bytes (WAV format)
        """
        # TODO: Implement audio trimming
        raise NotImplementedError("Audio trimming not yet implemented")