Guides & separation tips
Everything you need to know about removing vocals, pulling beats, isolating stems and cleaning up audio.
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Left and right speaker and headphone test: how to check
Test left and right speakers and headphones in your browser: play each channel, spot swapped or unbalanced channels, a dead side, and fix it fast.
Speaker polarity test: check for out-of-phase wiring
Check if a speaker is wired out of phase with a low sine and a phase-invert switch: thin or full bass tells you if the pair is right, and how to fix it.
How many Hz can you hear? A sine hearing range test
Test your hearing frequency range with sine tones from 20 Hz to 20 kHz in the browser, and learn why the top end fades with age and gear.
Extract music from a YouTube or TikTok video: MP3 or split stems
Get music out of a YouTube or TikTok video: paste a link for an MP3, or split the vocal from the beat right inside the video, no software install.
Free vocal remover software, apps and websites: which to pick
Compare free vocal-removal websites, apps and desktop software: what LALAL.AI, Moises and Audacity actually limit, and how to pick by need.
Can CapCut separate music? When to use a dedicated tool instead
Compare CapCut audio separation vs vocal isolation, bring an already-separated beat into CapCut, and know when a dedicated tool wins.
Separating instruments from a song: drums, bass, piano and guitar
What stem separation is, which instrument layers the models can pull out, and why guitar has no dedicated layer yet. Includes 4-stem vs 5-stem.
Removing vocals on a phone with no app install: iPhone and Android
Remove vocals on your phone right in the browser, no app install, and no need for a flagship iPhone or Android to do it.
Is separating music copyright infringement? How to use it right
Does separating a song for personal listening infringe copyright, what to watch for posting covers, and how Content ID treats separated tracks.
How to check mono or stereo audio with L/R spectrograms
Compare left and right channels to spot mono exports, duplicated channels, imbalance or a missing side while understanding the limits of the test.
Left/right audio imbalance or a missing channel: a diagnostic guide
Diagnose a quiet side, missing channel, misplaced content or phase clues with L/R views, level measurements and mono checks with explicit limits.
How to remove drums from a song, and what it cannot do
How to isolate or remove drums from a song using 4-stem separation, for drum practice, tempo reference or a drumless version. Includes the real limits.
How to remove bass from a song, or isolate the bass line
How to pull the bass line out of a song with 4-stem separation, for bass practice, transcription or a bassless track. Plus the kick-versus-bass limit.
What is a spectrogram and how to read it: a guide
What a spectrogram is, how to read its time axis, frequency axis and color scale, and why it shows things a plain waveform simply cannot.
How to spot fake lossless music with a spectrogram
How to read a spectrogram to spot fake lossless files: what a high-frequency cutoff means, typical ranges, and when it isn't actually proof.
Reading a spectrogram while mixing: clipping, resonance
How to read a spectrogram while mixing and mastering: spotting clipping, harsh resonance, noise floor issues, and leftover vocal bleed in a separation.
Getting a karaoke beat from any song: how it works
How AI pulls an instrumental beat out of a finished song, why dense mixes are harder to clean, and how it differs from a studio original.
Removing vocals from a song: how-to and real limitations
What a stem is, how 2/4/5-stem modes differ, why a faint echo or metallic ring can remain, and the copyright limits to know before removing a vocal.
Vocal removal for karaoke: a complete guide
How to remove vocals from a song to get a clean karaoke backing track for singing along or recording covers. Tips on stem count and high-quality files.
Extract instrumentals for covers: studio-ready
How to extract the instrumental from an original track for covers, remixes or new arrangements, keeping the instruments while removing the original singer.
Remove noise from phone recordings, fast
Phone recording plagued by hum, wind or background hiss? Learn how to remove noise and isolate speech for a clearer recording.