Overview of Audio File Manager Module

Purpose

The Audio File Manager module is designed to offer comprehensive tools for managing audio files within educational environments. It aims to streamline the organization, previewing, and administration of voice recordings and other audio materials, making it easier for developers to integrate these functionalities into their applications.

Benefits

• Efficient Organization: Enables tagging and categorization of audio files with flexible metadata, enhancing searchability.
• Seamless Previewing: Provides an intuitive interface for users to play and review audio content without leaving the application.
• Batch Processing Capabilities: Facilitates bulk operations such as uploads, conversions, and deletions, saving time during mass handling of audio files.
• Reporting Features: Generates detailed reports on usage patterns and file statistics, aiding in resource management decisions.
• Security and Access Control: Offers role-based access control to ensure only authorized users can manage or view sensitive audio materials.

Usage Scenarios

1. Uploading Audio Content: Supports the easy upload of multiple audio files with optional metadata input.
2. Integration into Learning Management Systems (LMS): Enhances e-learning platforms by embedding audio resources directly, improving course engagement.
3. Classroom Management Tools: Assists educators in organizing teaching materials and managing student recordings effectively.
4. Content Creation Workflows: Streamlines the creation of multimedia educational content, integrating with other digital tools seamlessly.
5. Data Reporting and Analysis: Provides insights into audio file usage trends and patterns for informed decision-making.

This module is tailored to meet the technical needs of developers while addressing the practical requirements of educators managing audio resources in a classroom setting.

Audio File Manager Module Documentation

1. Audio File Upload/Import

• Allows bulk import of audio files from various sources, including direct uploads or integration with external storage systems (e.g., cloud services). Supports multiple formats like WAV, MP3, and FLAC.

2. Audio Organization & Tagging

• Provides a flexible tagging system to categorize audio materials by tags such as subject, topic, date, or user-defined criteria. Facilitates efficient navigation and retrieval of specific files.

3. Preview Functionality

• Enables users to play audio files directly within the module interface without needing external software. Includes controls for playback, pausing, and adjusting volume.

4. Metadata Management

• Manages metadata such as title, duration, format, and bit rate. Allows editing or updating of metadata fields to enhance organization and searchability.

5. Search & Filter Capabilities

• Offers advanced search with options to filter by tags, metadata, date ranges, or file format. Improves efficiency in locating specific audio files quickly.

6. Batch Processing

• Processes multiple audio files simultaneously for tasks like conversion between formats (WAV to MP3) or applying uniform naming conventions, saving time on repetitive tasks.

7. Export Options

• Provides options to export selected audio files in various formats, catering to different playback devices or distribution needs, enhancing flexibility.

8. Integration Capabilities

• Offers APIs and hooks for seamless integration with other classroom management systems, learning platforms, or third-party tools, allowing for a unified workflow.

9. Reporting & Analytics

• Generates reports on audio file usage, storage trends, and errors, aiding in monitoring system health and optimizing resource allocation.

10. Security Features

• Implements encryption for secure file storage and access controls based on user roles to restrict unauthorized access, ensuring data protection.

11. Logging & Monitoring

• Logs activities related to audio files for auditing purposes and provides monitoring features to track system performance and identify issues promptly.

This documentation outlines the essential features of the Audio File Manager module, designed to assist developers in effectively managing classroom audio materials with robust technical capabilities.

Audio File Manager Documentation

A module designed to organize, preview, and manage voice recordings or audio materials in a classroom setting.

Features

• Upload and store audio files
• Preview audio files before upload
• Search and filter audio files
• Delete audio files
• Manage user permissions for audio files

Installation

pip install fastapi python-magic react-dropzone

API Reference

FastAPI Endpoint (File Upload)

from fastapi import FastAPI, UploadFile, Depends, HTTPException
from fastapi.security import OAuth2PasswordBearer
import magic

app = FastAPI()
oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")

async def get_current_user(token: str = Depends(oauth2_scheme)):
    # Implementation for user authentication
    pass

@app.post("/audio/upload")
async def upload_audio(
    file: UploadFile,
    current_user: dict = Depends(get_current_user)
):
    try:
        content_type = magic.from_file(file.filename, mime=True)
        if "audio" not in content_type.type:
            raise HTTPException(status_code=400, detail="Not an audio file")
        
        # Store the file
        return {"message": f"Audio file {file.filename} uploaded successfully"}
    
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))

React UI Component (File Upload)

import React from 'react';
import { useDropzone } from 'react-dropzone';

const AudioUploader = ({ onUpload }: { onUpload: (files: File[]) => void }) => {
    const [files, setFiles] = React.useState<File[]>([]);

    const onDrop = useCallback((acceptedFiles: File[]) => {
        setFiles(acceptedFiles);
        onUpload(acceptedFiles);
    }, [onUpload]);

    const { getRootProps, getInputProps, isDragActive } = useDropzone({ onDrop });

    return (
        <div className="drop-zone">
            <input {...getInputProps()} />
            <div
                {...getRootProps()}
                className={`dropZone ${isDragActive ? 'drag-active' : ''}`}
            >
                {isDragActive ? (
                    <p>Drop the files here...</p>
                ) : (
                    <p>Drag and drop audio files here, or click to select</p>
                )}
            </div>
            <div className="files">
                {files.map((file) => (
                    <div key={file.name} className="file-item">
                        <span>{file.name}</span>
                        <span>{(file.size / 1024).toFixed(2)} KB</span>
                    </div>
                ))}
            </div>
        </div>
    );
};

export default AudioUploader;

Data Schema (Pydantic)

from pydantic import BaseModel
from typing import Optional, List

class User(BaseModel):
    id: str
    username: str
    role: str  # e.g., 'student', 'teacher'

class AudioFile(BaseModel):
    id: str
    name: str
    duration: float  # in seconds
    uploaded_by: User
    upload_date: str

class UploadResponse(BaseModel):
    status: str
    message: str
    data: Optional[AudioFile]

class ErrorResponse(BaseModel):
    status: str
    error: str

UI Components

File List Component

import React from 'react';

interface AudioFile {
    id: string;
    name: string;
    duration: number;
    uploadedBy: string;
    uploadDate: string;
}

const AudioFileList = ({ files }: { files: AudioFile[] }) => {
    return (
        <div className="file-list">
            {files.map((file) => (
                <div key={file.id} className="file-item">
                    <audio src={file.url} controls>
                        Your browser does not support the audio element.
                    </audio>
                    <div className="file-info">
                        <h3>{file.name}</h3>
                        <p>Uploaded by: {file.uploadedBy}</p>
                        <p>Duration: {(file.duration / 60).toFixed(2)} minutes</p>
                        <p>Upload date: {new Date(file.uploadDate).toLocaleDateString()}</p>
                    </div>
                </div>
            ))}
        </div>
    );
};

export default AudioFileList;

Authentication

FastAPI Authentication Setup

from fastapi import Depends, HTTPException, status
from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
from sqlalchemy.orm import Session

oauth2_scheme = OAuth2PasswordBearer(tokenUrl="auth/token")

def get_current_user(db: Session = Depends(...), token: str = Depends(oauth2_scheme)):
    credentials_exception = HTTPException(
        status_code=status.HTTP_401_UNAUTHORIZED,
        detail="Could not validate credentials",
        headers={"WWW-Authenticate": "Bearer"},
    )
    try:
        payload = jwt.decode(token, ...)
        user = db.query(User).filter(User.username == payload.sub).first()
        if not user:
            raise credentials_exception
        return user
    except JWTError:
        raise credentials_exception

Contributing

• Fork the repository and create a pull request for new features.
• Report bugs or issues by opening an issue on GitHub.

This documentation provides a comprehensive overview of the Audio File Manager module, including code examples for FastAPI endpoints, React UI components, and data schemas.

# Audio File Manager Module Documentation

## Overview
The **Audio File Manager** module is designed to organize, preview, and manage voice recordings or audio materials within a classroom environment. This module provides essential functionality for importing, exporting, and managing audio files, making it an integral part of any classroom management system.

---

## Related Modules

1. **Assignment Manager**: For integrating audio files as part of student assignments.
2. **Student Database**: To associate audio recordings with individual students or groups.
3. **Attendance Tracker**: For recording and managing attendance via voice check-ins.
4. **Class Schedule**: To sync audio materials with specific class sessions or events.

---

## Use Cases

### 1. Import Audio Files
- Allow users to upload audio files from local drives, cloud storage (e.g., Google Drive), or external sources (e.g., URL links).
- Support multiple file formats (MP3, WAV, FLAC).

### 2. Preview Audio Materials
- Provide a built-in audio player for previewing uploaded files.
- Enable playback controls (play, pause, stop) and adjust volume levels.

### 3. Manage Audio Collections
- Organize audio files into folders or categories for easy access.
- Add metadata (e.g., title, description, tags) to each audio file.
- Search and filter audio files based on keywords, duration, or upload date.

### 4. Export Audio Files
- Enable bulk export of audio files in various formats.
- Generate downloadable ZIP packages containing selected audio files.

---

## Integration Tips

1. **API Integration**:
   - Use RESTful APIs to integrate the Audio File Manager with other classroom modules (e.g., Assignment Manager, Student Database).
   - Example endpoint: `/api/audio-files/upload` for file uploads.

2. **Event Handling**:
   - Trigger events when new audio files are uploaded or modified.
   - Integrate with notification systems to alert users of updates.

3. **Third-Party Services**:
   - Use cloud storage services (e.g., AWS S3, Google Cloud Storage) for scalable file storage.
   - Integrate with speech-to-text APIs (e.g., Google Speech API) for enhanced functionality.

4. **UI/UX Best Practices**:
   - Provide a user-friendly interface with drag-and-drop functionality for file uploads.
   - Include visual feedback for file status (e.g., uploading, completed, failed).

---

## Configuration Options

Below is a table of configuration options for the Audio File Manager module:

```markdown
| Parameter                  | Type          | Description                                                                 |
|----------------------------|---------------|-----------------------------------------------------------------------------|
| `BASE_AUDIO_DIR`           | String        | Base directory path for storing audio files.                                  |
| `ALLOWED_FILE_TYPES`       | Array<String> | List of allowed audio file extensions (e.g., ["mp3", "wav", "flac"]).     |
| `MAX_FILE_SIZE`            | Integer      | Maximum allowed size for individual audio files in megabytes (MB).          |
| `THUMBNAIL_DIMENSIONS`     | Object        | Dimensions for generating thumbnail images of audio covers.                   |
| `CACHE_EXPIRATION_TIME`    | Integer      | Cache expiration time in hours for frequently accessed audio files.         |
| `DEFAULT_SORT_ORDER`       | String        | Default sorting order for audio files (e.g., "upload_date", "file_size").  |
| `API_BASE_URL`             | String        | Base URL for API endpoints used to integrate with other modules.            |

Conclusion

The Audio File Manager module is a versatile tool designed to streamline the organization and management of audio materials in a classroom setting. By leveraging its integration capabilities, developers can seamlessly incorporate it into existing systems while providing users with powerful features for handling audio files.