Frequently Asked
Questions

Podcast mastering is the final step in audio production that optimizes your podcast's sound quality for distribution. It includes EQ balancing, compression, noise reduction, and loudness normalization to ensure your podcast sounds professional and consistent across all listening platforms.

SONE uses machine learning algorithms to analyze your audio's frequency spectrum, dynamic range, and loudness characteristics, then applies optimal processing automatically—delivering broadcast-quality results in minutes.

Yes! SONE offers 3 free MP3 mastering credits every month with no credit card required. These credits reset monthly and provide full access to our AI-powered mastering technology.

One credit equals up to 4 hours of audio processing. You can process a single long podcast or multiple shorter episodes, depending on your needs. Credits are consumed when you submit a file for processing.

SONE supports all major audio formats including MP3 and WAV files up to 1GB in size. You can choose between MP3 output (free tier) or high-quality WAV output (premium credits).

SONE's AI-powered mastering typically processes files in under 3 minutes. The exact time depends on file size, but most podcasts are ready for download within minutes of upload.

SONE normalizes audio to meet major podcast platform standards. Most podcast apps target -16 LUFS (the level recommended by Apple Podcasts), while Spotify normalizes to -14 LUFS. SONE applies loudness normalization appropriate for broad platform compatibility, so your audio sounds consistent and professional everywhere.

SONE is designed for mastering final mixed audio files. If you have multiple tracks (different microphones, music beds), you should first mix them down to a single stereo file before uploading for mastering.

Currently, SONE supports files up to 1GB. For longer podcasts or audiobooks, you can split the content into multiple files, process them separately, and then concatenate the mastered files.

Yes, your files are encrypted during upload and storage. We automatically delete all files after 30 days and never share your content with third parties.

You retain 100% ownership of your audio content. We never claim any rights to your podcasts or use them for any purpose other than providing our mastering service.

Your free credits reset every month automatically. If you've used all your free credits and need more, you can purchase additional credits through our credit packages.

SONE's AI applies professional audio processing techniques—EQ balancing, dynamic compression, and loudness normalization—that are standard in broadcast production. It delivers consistent, broadcast-quality results instantly, at a fraction of the cost of traditional mastering services.

No special equipment needed! SONE works with any audio file you record. Simply upload your existing recordings, and our AI will enhance them to professional quality.