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Message: [QUOTE="Bombastus, post: 92205, member: 2178"] FL Studio’s current Master Pitch control can set note A directly to 432 Hz, but only participating channels follow that project-level change. A number on the toolbar is therefore a setting, not proof that every sound in the track has moved with it. Start with one plain, sustained note instead of the whole arrangement. The first check is whether your [B][URL='https://goldmidi.com/community/resources/how-to-tune-fl-studio-to-432-hz.38/']project-wide 432 Hz tuning[/URL][/B] is actually reaching the sound source you are testing. Pick a synth with a clean tone, play the reference A, and keep modulation, chorus, reverb, detuning, unison, and pitch automation out of the test. FL Studio’s Tuner is designed for monophonic audio, so a full chord or busy master channel is a poor test signal. Put Tuner after the instrument or on the mixer track receiving it, then let the note settle for a moment. You want one stable pitch, not a meter trying to choose between a bass note, harmonics, and whatever the reverb tail is doing. [HEADING=2]A clean reference note exposes setup errors quickly[/HEADING] Set Tuner’s reference to 432 Hz if you want the reference A to land at the center of the display as an in-tune note. Leave the tuner at 440 Hz and the same 432 Hz tone will sit roughly 31.8 cents flat relative to that reference. Both views can describe the same audio, which is why simply seeing the word “flat” does not prove your 432 Hz setup failed. A direct frequency reading is even harder to misread. When you play the reference A, look for a result close to 432 Hz rather than assuming the note label alone is enough. Small movement can occur with analog-modelled oscillators, vibrato, free-running synth voices, or deliberately unstable patches, so use a plain generator when you want a diagnostic result. Pitch detection itself is not magic. A tuner has to estimate the repeating fundamental inside an audio signal, a problem treated directly in [B][URL='https://pubmed.ncbi.nlm.nih.gov/12002874/']fundamental-frequency estimation methods[/URL][/B]. FL Studio’s own Tuner is intended for monophonic input, so testing a single sustained note removes a pile of avoidable ambiguity before you start blaming the project settings. [HEADING=2]Main Pitch must reach the channel you are testing[/HEADING] Master Pitch only affects a channel when Enable Main Pitch is active for that channel. If the reference A stubbornly stays around 440 Hz while the project is set to 432 Hz, inspect the channel before touching the global control again. Re-entering 432 Hz will not fix a sound source that is simply ignoring Main Pitch. Third-party instruments deserve the same suspicion. Some plug-ins handle host pitch controls differently, while others expose their own master-tuning parameter. Compare a known FL Studio instrument with the questionable plug-in using the same reference A test. If one reads correctly and the other does not, you have isolated the problem without disturbing the rest of the project. Audio Clips need similar care because time-stretching and pitch behavior can affect what you hear. A sample that already arrived detuned, contains several notes, or has its own pitch adjustment is a messy reference. Use a clean generated tone for verification first, then inspect samples individually if something in the arrangement still sounds wrong. [HEADING=2]The exported file deserves its own 432 Hz check[/HEADING] Rendering creates an audio file from the project’s mixer output, so the last check should happen on the file you intend to publish. Export a WAV, open a blank project, reset Master Pitch to 440 Hz, load the rendered file, and place Tuner on its mixer path. A neutral project avoids judging the export through the same pitch change you were trying to verify. For a precise test, include a short isolated reference A before the musical material or make a temporary verification render containing only that note. Once the file is rendered, the pitch is baked into the audio. Tuner should therefore see the reference tone near 432 Hz without relying on the new project’s Master Pitch control. Do not use the busiest eight bars of the song as your final measuring stick. Dense drums, chords, saturation, layered vocals, and bass can give a monophonic tuner too many competing periodic components. A short reference tone is cleaner, repeatable, and easy to remove from the release render once the export path has passed the check. If the project test reads 432 Hz but the clean exported reference does not, trace the signal path rather than nudging the master control by ear. Check the source channel, its Enable Main Pitch state, any pitch automation, plug-in tuning, and the mixer chain. One controlled note will usually tell you where the mismatch begins. [/QUOTE]

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