Mirelo SFX1.6 Text to Audio API

Mirelo AI SFX 1.6 Text-to-Audio

Mirelo AI SFX 1.6 Text-to-Audio generates sound effects, ambience, and short audio clips from natural-language prompts. It supports loop-friendly ambience mode, multiple variations, flexible duration control, and optional doubled loop output for seamless background audio workflows.

Why Choose This?

• Prompt-based audio generation Generate sound effects or ambient audio directly from a text description.

• Flexible duration control Choose the target duration for the generated clip, from short effects to longer ambient beds.

• Loop-friendly ambience mode Enable ambience to generate audio designed for seamless looping.

• Multiple variations Generate up to 4 different versions in one request with num_samples.

• Optional doubled loop output When using ambience mode, enable double_output to concatenate the loop with itself for a longer seamless result.

• Production-ready API Useful for games, film, podcasts, background ambience, sound design, and content production workflows.

Parameters

Parameter	Required	Description
text_prompt	Yes	Text prompt describing the sound effect or ambient audio to generate. Minimum length: 4 characters.
duration	No	Target duration in seconds. Range: 0.1–60. Default: 10.
ambience	No	When true, generate and stitch the result so the tile loops seamlessly. Default: false.
double_output	No	Only used when ambience is true: concatenate the loop with itself for a 2x-length output. Default: false.
num_samples	No	Number of variations to generate. Range: 1–4. Default: 1.

How to Use

1. Write your prompt — describe the sound, mood, texture, or environment you want.
2. Set duration — choose how long the generated audio should be.
3. Enable ambience (optional) — turn this on if you want a seamless loopable result.
4. Enable double output (optional) — when using ambience, use this to produce a doubled loop.
5. Set number of samples — choose how many variations you want, from 1 to 4.
6. Submit — run the model and download the generated audio.

Example Prompt

Dark cinematic ambience with distant thunder, soft low-frequency rumble, subtle wind, and evolving tension

Pricing

Pricing is based on generated duration and number of samples.

Duration	1 Sample	2 Samples	3 Samples	4 Samples
1s	$0.01	$0.02	$0.03	$0.04
5s	$0.05	$0.10	$0.15	$0.20
10s	$0.10	$0.20	$0.30	$0.40
20s	$0.20	$0.40	$0.60	$0.80
30s	$0.30	$0.60	$0.90	$1.20
60s	$0.60	$1.20	$1.80	$2.40

Billing Rules

• Pricing is $0.01 per generated second
• text_prompt does not affect pricing
• This pricing assumes ambience and double_output do not change billing unless your backend explicitly makes them billable

Best Use Cases

• Sound effects — Generate short custom SFX for games, apps, and media.
• Ambient loops — Create seamless background beds for environments and scenes.
• Content production — Add generated sound design to videos, podcasts, or social content.
• Creative prototyping — Explore multiple sound directions quickly with several variations.
• Game and app audio — Produce loopable background textures and interactive sound assets.

Pro Tips

• Be specific in your prompt about texture, mood, environment, and intensity.
• Use ambience when the output needs to loop smoothly.
• Turn on double_output only when you want a longer looped deliverable.
• Increase num_samples when you want multiple creative options from the same prompt.
• Start with shorter durations for testing, then scale up once the direction feels right.

Notes

• text_prompt is required.
• duration supports 0.1–60 seconds.
• num_samples supports 1–4.
• double_output only applies when ambience is enabled.
• Pricing is based on requested generation duration and sample count.

Related Models

• Mirelo AI SFX 1.6 Extend Audio — Extend an existing audio clip with newly generated continuation.
• Mirelo AI SFX 1.6 Inpaint Audio — Regenerate a selected segment inside an existing audio clip.
• Other Mirelo AI sound generation workflows — Useful when you need continuation or localized audio editing instead of fresh generation.