Blog
Practical guides to voices, music, vocals and transcripts, tested with our own tools.
Can You Copyright AI Music? What the Law Says in 2026
Can you copyright AI music? Mostly only the human parts. The rules in the US, UK, EU and China as of October 2026, and what to check before you sell.
Oct 29, 2026
How to Find the Key of a Song: 4 Ways That Work
How to find the key of a song by ear, from its chords, from sheet music or with a key finder, and the three near misses that trip up people and software.
How to Transcribe Audio to Text: 3 Ways That Work
How to transcribe audio to text by hand, with built-in captions or with AI: the time and cost of each, real numbers from our samples, and 30 free minutes.
MP3 vs WAV: Which Audio Format Should You Use?
MP3 vs WAV tested on real files: size per minute, where each MP3 bitrate cuts the highs, when WAV is worth it, and the best audio format for each job.
What Are Stems in Music? Vocals, Drums, Bass and Other
What are stems in music? The few files a song splits into: vocals, drums, bass and other. What each holds, what we measured and how to get your own.
What Is BPM in Music? How to Find the BPM of a Song
What is BPM in music, how to find the BPM of a song by counting, tapping or with a BPM finder, and the real tempos of house, techno and dance styles.