MP3 Processing File System

An MP3 File Processing System is a file processing system that performs MP3 file processing operations (on MP3 files).

• Context:
  • It can (typically) perform operations such as converting audio files to and from MP3 format, editing MP3 files (e.g., trimming, merging), analyzing MP3 files for properties like bit rate and frequency, and tagging MP3 files with metadata.
  • It can (often) support batch processing of multiple MP3 files, allowing for efficient handling of large collections of audio files.
  • It can (typically) include MP3 Encoding System functionalities to adjust various encoding parameters like bit rate, sampling rate, and channel mode.
  • It can (often) have capabilities to repair damaged or corrupt MP3 files, recovering them to a playable state.
  • It can (typically) provide user interfaces ranging from command-line interfaces for advanced users to graphical user interfaces for more general users.
  • It can (often) integrate with digital audio workstations and other audio editing software for more complex audio production and manipulation tasks.
  • ...
• Example(s):
  • An audio editing software with MP3 support that allows users to cut, join, and apply effects to MP3 files.
  • A batch audio converter that can convert multiple files between MP3 and other audio formats.
  • A tag editor designed specifically for editing the ID3 tags of MP3 files.
  • ...
• Counter-Example(s):
  • An image editing software, which manipulates image files rather than audio files.
  • A video processing system, which is intended for digital video files and not specifically for audio or MP3 files.
• See: MP3 File, MP3 Format, Lossy Data Compression, Digital Audio, Psychoacoustics, Bit Rate, Sampling Rate, Metadata, ID3 Tag, MP3 Encoding System, Audio Editing Software, Digital Audio Workstation.

---

---

References

2023

• Example

# Example of using TinyTag to extract metadata from an MP3 file
import tinytag
from tinytag import TinyTag

file_path = "file.mp3"  # Define the path to the MP3 file

def seconds_to_hms(seconds):
   """
   Convert seconds to hours:minutes:seconds format.
   """
   hours = int(seconds // 3600)
   minutes = int((seconds % 3600) // 60)
   seconds = int(seconds % 60)
   return f"{hours:02d}:{minutes:02d}:{seconds:02d}"

# Extract metadata using TinyTag
tag = TinyTag.get(file_path)
duration_hms = seconds_to_hms(tag.duration)
print(f"Title: {tag.title}")
print(f"Artist: {tag.artist}")
print(f"Album: {tag.album}")
print(f"Year: {tag.year}")
print(f"Track Number: {tag.track}")
print(f"Genre: {tag.genre}")
print(f"Duration: {duration_hms}")
# This demonstrates how to use TinyTag to get MP3 metadata and convert the duration from seconds to a readable format.

# Example of splitting an MP3 file into chunks with PyDub, including overlap
from pydub import AudioSegment
import os
def split_mp3_with_overlap(file_path, num_chunks, overlap_duration):
   """
   Splits an MP3 file into specified number of chunks with an overlap duration in minutes.
   """
   audio = AudioSegment.from_mp3(file_path)  # Load the MP3 file
   total_length = len(audio)  # Total audio length in milliseconds
   #
   # Convert milliseconds to hours, minutes, and seconds for total duration
   total_length_hr, total_length_min, total_length_sec = convert_ms_to_time(total_length)
   print(f"Total duration: {total_length_hr}h {total_length_min}m {total_length_sec}s")
   #
   overlap_ms = overlap_duration * 60 * 1000  # Convert overlap duration to milliseconds
   adjusted_total_length = total_length - overlap_ms * (num_chunks - 1)  # Adjust length to account for overlaps
   chunk_duration = adjusted_total_length / num_chunks  # Duration of each chunk
   #
   base_name = os.path.splitext(os.path.basename(file_path))[0]  # Get base file name without extension
   #
   for i in range(num_chunks):
       start_time = i * chunk_duration + min(i * overlap_ms, total_length)
       end_time = start_time + chunk_duration + overlap_ms
       end_time = min(end_time, total_length)  # Ensure end time does not exceed total length
       chunk = audio[start_time:end_time]  # Extract audio chunk
       chunk.export(f"{base_name}_chunk_{i+1}.mp3", format="mp3")  # Export chunk as MP3

def convert_ms_to_time(duration_ms):
   """
   Convert milliseconds to hours, minutes, and seconds.
   """
   seconds = (duration_ms / 1000) % 60
   minutes = (duration_ms / (1000 * 60)) % 60
   hours = (duration_ms / (1000 * 60 * 60))
   return int(hours), int(minutes), int(seconds)

# Example usage to split an MP3 file into 3 chunks with 1 minute of overlap
split_mp3_with_overlap(file_path, num_chunks=3, overlap_duration=1)

---