Punctuate a cut out to the water
One held blast on the first frame of an exterior tells the audience instantly where they now are. It reads the same in a game level or a graphic novel motion piece.
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Fog horn sound effect
The signal that warns a coast nobody can see. Say how low the note sits, how long it is held, and how much water it has crossed before it reaches you.
- Set how low the note sits and how long the blast is held
- A signal written for your coastline, not the take everybody downloads
- Long notes that keep their weight once picture is laid over them
Fog signals for coastal scenes, games, and animation
Two-tone diaphone
A held low note that drops to a grunt at the end. It is the sound most people picture when they hear the words, and the drop is the part that makes it unmistakable.
Single held blast
Flat, electric, and utterly even from start to finish. Reach for it when the scene is modern, because the mechanical grunt of a diaphone dates a location by about a century.
Signal from far off
The same note with the top taken off it and a faint return behind. Distance is built into the colour here rather than the level, so it still sits properly against a picture.
Two blasts with a long gap
The pattern a station actually keeps: sound, silence, sound. The gap is what tells an audience this is machinery on a timer rather than a person leaning on a horn.
Bell buoy
A bronze bell struck by its own rocking, so the strikes never fall evenly. That unevenness reads as swell, which is why one buoy can imply an entire sea state.
Whistle buoy
A breathy wavering moan pushed by rising and falling swell. The strangest of the six, and the one that turns a coastal scene uneasy without any music doing the work.
Generate a fog signal from a prompt
Choisissez un point de départ, modifiez ce que vous voulez, puis générez dans Morphic.
Ways to use a fog horn sound effect
Hold a silent scene on one long note
A whistle buoy moans for ten unbroken seconds and asks nothing of the picture. It carries a wordless stretch in an audio drama as easily as a held wide shot.
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Say the visibility is gone without showing it
A dulled note with a faint return behind it does what a fog machine cannot afford to: it tells the audience the air is thick and the shore is somewhere out there.
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Put a harbour beyond the edge of the frame
Uneven bell strikes place moving water and a working port outside the shot. In animation and games it saves modelling a whole waterfront you would only glimpse.
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Questions fréquentes
What is a fog horn sound effect?
It is the warning signal a light station, harbour entrance, or navigation buoy sounds when visibility drops. The sound is a long low note rather than a short blast, because low frequencies travel furthest through thick air, and that length is what makes it read as a warning rather than a vehicle.
How do I make a fog horn sound effect?
Name the mechanism and the shape of the note. A diaphone holds one dense low tone and drops to a grunt at the end, while an electric emitter stays flat from start to finish. Say which, then say how many seconds the note holds, and the result stops sounding like a brass instrument.
What is the difference between a fog horn and a ship horn?
A fog signal is fixed equipment warning vessels away from a hazard, so it repeats on a timer with long silences between blasts. A ship whistle is sounded by a crew as a message, so it comes in patterns tied to a manoeuvre. The repetition, not the pitch, is what separates them by ear.
How do I make a fog horn sound distant?
Ask for the top of the note to be missing rather than for a quiet take. Generators read quiet as near-silence, so describe a dulled, rounded tone with a faint short return behind it. That is what a long stretch of damp air actually does to a low note.
What is a bell buoy and when would I use one?
It is a floating marker whose bell is struck by its own motion, so the strikes fall unevenly. Use it when a scene needs moving water implied rather than heard, since the irregular rhythm tells an audience there is swell without a single wave in the audio.
Can I use generated fog horn sounds commercially?
Yes, audio generated on paid plans can be used commercially. See our terms for full licensing details. It also solves a practical problem, since fog signals are recorded on working navigation equipment that almost nobody can arrange access to.