Bulk MP3 Converter & Extractor

Bulk MP3 Converter is a powerful, all-in-one audio editor and batch music converter designed for Android. Effortlessly process hundreds of audio files simultaneously, extract high-quality audio from videos, and edit sound tracks with studio-grade audio tools—all with lossless MP3 export!

Whether you need to convert rare formats, make custom ringtones, remove vocals, or adjust audio pitch and speed, Bulk MP3 Converter provides the ultimate mobile audio solution.

--- KEY HIGHLIGHTS ---

• Massive Batch Converter: Convert, trim, mix, or adjust volume for multiple audio files at once to save your time.
• Universal & Rare Format Support: Fully compatible with MP3, WAV, AAC, M4A, FLAC, OGG, WMA, AC3, M4R, and specialized formats like SLK/SILK (WeChat/QQ audio), MPEG-H 3D Audio, MHM1, MHA1, MMF, AMR, and WV.
• AI-Powered Audio Tools: Advanced vocal removal, stem separation (vocals, drums, bass, piano), noise reduction, and instant speech-to-text transcription.
• Studio-Grade Mastering: Built-in 31-band equalizer, 3D surround sound effect, audio MD5 modifier, and channel splitting/merging.

--- MAIN FEATURES ---

[ Batch Audio Converter & Extractor ]
• Format Converter: Easily convert audio files to MP3, WAV, FLAC, AAC, M4A, OGG, WMA, and more.
• Video to MP3 Extractor: Extract lossless audio or multi-track audio from video files in batch mode.
• Specialized SLK Converter: Convert SLK (Silk) format to MP3 and MP3 to SLK with one click.
• Web Media Downloader: Download audio and video directly from website URLs.

[ Precision Audio Editor & Ringtone Maker ]
• Audio Trimmer & Cutter: Cut out unwanted sections or select specific segments to create customized ringtones and notification alarms.
• Splitter & Merger: Concat multiple tracks into a single MP3 or split long audio files by duration/file count.
• Mixer & Audio Insertion: Overlay multiple audio tracks, apply smooth crossfades (fade in/out), or insert audio clips at precise timestamps.
• Speed & Pitch Adjuster: Modify audio playback speed (tempo) and adjust pitch effortlessly.
• Audio Beeper: Replace selected audio sections with a standard beep sound for censors.

[ AI Sound Processing & Voice Tools ]
• AI Vocal Remover & Stem Separator: Remove vocals to generate karaoke accompaniment, or isolate drums, bass, and piano stems from any track.
• Speech to Text (STT): Transcribe voice recordings and audio notes into plain TXT files.
• Text to Speech (TTS): Convert written text into natural-sounding voiceovers with multiple timbre options.
• AI Noise Reduction: Clean background noise from dirty voice recordings for clear sound output.

[ Audio Engineering & Sound Effects ]
• 31-Band Equalizer: Fine-tune sound frequencies for personalized music audio output.
• Spatial Audio & Effects: Add rich 3D surround sound, reverberation (reverb), and multi-person chorus effects.
• Channel Separator & Merger: Separate or merge audio channels (Mono, Stereo, Quad Surround, 5.1, and 7.1 stereo).
• System & Microphone Recorder: Capture internal system audio or record voice straight to MP3 files.

[ Tag Editor & File Management ]
• ID3 Tag & Cover Editor: Edit album info, title, artist metadata, and insert cover art.
• LRC Lyrics Editor: Create and edit synchronized LRC lyric files for music tracks.
• MD5 Signature Modifier: Change the MD5 hash information of audio files quickly.

Download Bulk MP3 Converter today and enjoy fast, lossless batch audio editing on your phone!

Recent changes:
- Compatible with Android 17
- Fixed some crash issue