UMW Recordings Inc. strictly enforces international technical standards to ensure content acceptance by major platforms (DSPs) and ensure an optimal listener experience.
✅ Allowed formats
Format | Technical description |
WAV (.wav) | Preferred format for its uncompressed fidelity. Industry standard. |
FLAC (.flac) | Lossless compressed format. A valid alternative to WAV. |
❗ Files in MP3, AAC, M4A, OGG, WMA or other lossy formats are not accepted.
📏 Mandatory technical specifications
Parameter | Minimum requirement |
Bit resolution | 16-bit or 24-bit |
Sampling rate | 44.1 kHz (minimum required) |
Channel | Stereo (2 channels) |
Standardization | Final level without clipping, -0.3 dBFS maximum |
Size per track | Maximum 200 MB per file |
Minimum duration | 30 seconds |
☁️ Supported charging methods
UMW offers two upload modes for your master files:
🔹 Local Charging
Drag the file directly from your computer.
Ideal for quick connection and local files.
🔸 Upload to the Cloud
Compatible with services such as Google Drive and Dropbox .
Useful for collaborative work or remote file management.
The system automatically detects the file format and size. If it doesn't meet the requirements, the file will be rejected.
📋 Additional technical recommendations
Export your final track in uncompressed linear PCM stereo .
Make sure there is no excessive silence at the beginning or end .
The file name must follow this structure:
TrackNumber_ArtistName_Title.wav
⚠️ Content rejection
UMW reserves the right to reject content that:
Does not meet the technical requirements indicated.
Contains compression artifacts , digital errors, or distortion.
Does not match the entered metadata (e.g. duration, title, artist).