
Two different sounds share one word: the thin arcade zap and the wide cinematic beam. Prompt for one or the other.
Every clip shows the exact prompt that produced it. The render script reads its prompts from the same file as this page. Copy one, change a word and generate your own.
plasma bolt firing, thick electric discharge with a downward pitch sweep and a crackling tail, medium space
sci-fi sniper rifle, long rising energy charge then a sharp focused beam discharge and a metallic echo
automated laser turret firing a six-shot burst, tight synthetic zaps with mechanical servo movement between
sustained laser beam, continuous bright searing tone with an unstable flickering harmonic, seamless loop
laser weapon overheating and venting, hissing steam release with metal ticking as it cools
energy blade swinging through air, humming core with a doppler whoosh and a bright electric edge
laser bolt deflecting off metal, sharp zap with a ringing metallic ricochet tail, medium room
energy pistol out of charge, three dry mechanical clicks with a weak dying electrical whine
massive orbital laser cannon firing, enormous descending energy roar with a deep sub bass shockwave
sci-fi scanning laser sweeping back and forth, thin oscillating tone with a soft doppler movement, clean
These models respond to physical description. Name the material, the action and the space.
retro arcade laser shot, thin pulse wave sweeping downward fast, narrow duty cycle, 200 ms, dry
"Narrow duty cycle" is the synthesis term for the thin, reedy timbre of a classic laser. It is more precise than adjectives like "sharp" or "electronic".
sci-fi energy blaster shot, thick sawtooth wave with a fast downward pitch sweep, gritty edge, 250 ms, dry
Sawtooth instead of pulse wave, plus "gritty edge", moves a laser from clean arcade to a heavier, more modern weapon sound.
charging energy beam, rising pitch synth whine building over 800 ms, then a sharp release burst at the end
Writing the prompt as build, then release, gives the model two phases to generate. That separates a charge-up weapon from a one-shot zap.
rapid-fire laser burst, four short thin pulse wave zaps in quick succession, 300 ms total, tight and dry
Count the shots ("four") and give a total duration. That keeps the burst tight and evenly spaced; without it the model tends to return one long stuttering sweep.
heavy laser cannon blast, deep low-frequency pulse with a bright high crack layered on top, 350 ms, powerful and dry
Describe a low element and a high element in the same prompt to get weight and clarity together. A heavy weapon needs both.
Pulse wave with a narrow duty cycle is the classic thin arcade laser. Sawtooth wave sounds grittier and more modern, which suits sci-fi blasters and energy weapons. A low sine or pulse element under a bright zap adds the physical power a hand weapon or vehicle cannon needs. Choose the waveform first. It decides more of the character than any other word in the prompt.
A downward pitch sweep is the default laser shape. It sounds like a shot losing energy as it travels. An upward sweep or a bend near the end sounds like a ricochet or a deflection. For a set with both a fired shot and a bounced shot, keep the rest of the prompt identical and change only the direction word.
A charge-up weapon, a rapid-fire burst and a single shot are three different event shapes. Describe the shape: "building then a release burst" for a charge weapon, "four short zaps in quick succession" for a burst, a single clean sweep for a standard shot. The model follows structural language like this more reliably than it infers structure from adjectives.
The models run on your machine, which changes the cost, the privacy and what you can automate.
Weights are fetched once. After that, generation, the library and the API all work with the network off. Everything lives in one SQLite file and one folder of WAVs under ~/.soundbox, and nothing is uploaded.
Soundbox runs an MCP server in the same process, with tools for generating and listing sounds. Generated files come back as absolute paths, so an agent can copy them into a project.
Every model's terms are shown before you download it, and non-commercial weights need an explicit confirmation. Soundbox is MIT. The licence of the model that made a sound governs what you may do with it.
claude mcp add --transport http soundbox http://127.0.0.1:17494/mcpcurl -X POST http://127.0.0.1:17494/api/generate \
-H 'Content-Type: application/json' \
-d '{"model":"audiocpp-stable-audio-3-sfx","prompt":"8-bit coin pickup blip","duration_s":1}'