Practical audio guides with listening examples, recording checks and tested music analysis. Find the cause of a problem and choose a useful next step.
One app says 89 BPM, another says 178. Neither has to be broken: most songs can be counted at more than one speed. We tested automatic tempo detection on 1,659 songs with known tempos to see when this happens and how to choose the number you need.
Read the guideA key finder can name the exact key, a close neighbour or something unrelated. We tested automatic key detection on 1,441 songs with published keys to see how often each happens, which genres are hardest and what a near miss means for a DJ mix.
Read the guideA genre detector says Pop at 18%. Is it unsure, or simply careful? We tested genre tagging on 999 labelled songs to find out what these percentages really predict, which genres get mixed up and how to read a result you can rely on.
Read the guideSome vocal removers finish a song in seconds; others take minutes. We measured six open separation models on 50 test songs to see what the extra time buys, what the difference sounds like and what else decides how clean your result will be.
Read the guideA better voice recording starts with a diagnosis. Work out whether the problem is background noise, room sound, distortion or uneven level, then change the part that matters.
Read the guideChoose Noise Removal when background sound is the main problem. Try Voice Enhance when the speech also needs a clearer tone and more even level. Compare the words as carefully as the silence.
Read the guideFirst check that the echo is in the saved audio. Then reduce the reflections on a short passage and judge the complete sentence before processing the rest.
Read the guideA moving meter is only the first check. Record a short sample, replay the saved sound, then repeat the test in your recording or calling app.
Read the guideYour song is ready, but how loud should the final version be? You may have seen different LUFS numbers for Spotify, Apple Music and YouTube. Do you need a different version for each?
Read the guideStart with a short section containing speech and a pause. Decide whether the problem is low rumble, changing street sound or another voice, then compare one cleanup pass with the original. For the next take, test a quieter position and bring the microphone closer.
Read the guideA gust can turn a clear sentence into a low roar. Protect the microphone before recording, check the saved take during the gust, and judge repairs by the words you can understand.
Read the guideEcho gives you a recognizable repeat. Reverb leaves a blended trail behind the voice. Hear both, work out where the extra sound enters your recording, and choose a fix that addresses that cause.
Read the guideFind where the “shhh” enters your recording, fix the next take, or rescue a file you cannot record again. Start with the symptom that matches your setup.
Read the guideStart by checking whether the hum is in your saved recording or only in your speakers. Then change one connection at a time. A low electrical hum needs different checks from a broad background hiss.
Read the guideMove the microphone closer to your voice and out of the airflow, then make a short comparison recording. These checks help you separate room noise, blowing air and a noisy recording setup before choosing a fix.
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