Inworld TTS-1.5 Mini
Inworld TTS-1.5 Mini is a lightweight text-to-speech model designed for real-time voice experiences with ultra-low latency and efficient performance. It delivers natural, expressive audio suitable for interactive agents, voice assistants, and conversational applications where responsiveness is critical. The Mini variant balances speed and quality, enabling responsive speech output even under constrained compute conditions.
Submersible Wake-Up Announcement Sequence
Good morning, crew. Depth is stable at three hundred twenty meters, external pressure remains within expected range, and all survey drones have returned to dock. Breakfast service begins in ten minutes in the galley. Before deployment, please confirm suit seals, update your dive slates, and report any equipment faults to navigation. Today’s route passes through a field of glass sponges and narrow basalt arches, so maintain line-of-sight with your team at all times. Have a steady shift.
{
"taskType": "audioInference",
"taskUUID": "2779b408-2342-4139-a86c-e50277e40225",
"model": "inworld:tts@1.5-mini",
"audioSettings": {
"bitrate": 128,
"sampleRate": 24000,
"channels": 2
},
"speech": {
"text": "Good morning, crew. Depth is stable at three hundred twenty meters, external pressure remains within expected range, and all survey drones have returned to dock. Breakfast service begins in ten minutes in the galley. Before deployment, please confirm suit seals, update your dive slates, and report any equipment faults to navigation. Today’s route passes through a field of glass sponges and narrow basalt arches, so maintain line-of-sight with your team at all times. Have a steady shift.",
"voice": "Claire",
"speed": 1
},
"settings": {
"temperature": 0.72
}
}{
"taskType": "audioInference",
"taskUUID": "2779b408-2342-4139-a86c-e50277e40225",
"audioUUID": "3c8c5a54-21ea-47f6-8eaa-1573d90aed35",
"audioURL": "https://am.runware.ai/audio/os/a10d08/ws/5/ai/3c8c5a54-21ea-47f6-8eaa-1573d90aed35.mp3",
"cost": 0.00245
}Antique Museum Closing Announcement
Good evening, guests. The Hall of Maritime Relics will close in fifteen minutes. Please make your way toward the east atrium and keep all hands clear of the restoration platforms. Our conservators will begin nightly preservation work shortly, including low-light scans of the copper astrolabes and the cedar navigation chest recovered from the Barrow Strait expedition. If you are waiting for the final guided viewing of the storm log exhibit, please gather beside the blue banner near Gallery Three. Thank you for spending your evening with us, and we wish you a safe journey home.
{
"taskType": "audioInference",
"taskUUID": "c6f4bca6-9b03-4f04-b18f-35f2bea66c03",
"model": "inworld:tts@1.5-mini",
"audioSettings": {
"bitrate": 128,
"sampleRate": 44100,
"channels": 2
},
"speech": {
"text": "Good evening, guests. The Hall of Maritime Relics will close in fifteen minutes. Please make your way toward the east atrium and keep all hands clear of the restoration platforms. Our conservators will begin nightly preservation work shortly, including low-light scans of the copper astrolabes and the cedar navigation chest recovered from the Barrow Strait expedition. If you are waiting for the final guided viewing of the storm log exhibit, please gather beside the blue banner near Gallery Three. Thank you for spending your evening with us, and we wish you a safe journey home.",
"voice": "Graham",
"speed": 1
},
"settings": {
"temperature": 0.72
}
}{
"taskType": "audioInference",
"taskUUID": "c6f4bca6-9b03-4f04-b18f-35f2bea66c03",
"audioUUID": "51ce40f9-3a8a-40b5-bbfb-e03b0f42ac74",
"audioURL": "https://am.runware.ai/audio/os/a25d05/ws/5/ai/51ce40f9-3a8a-40b5-bbfb-e03b0f42ac74.mp3",
"cost": 0.00291
}Orbital Greenhouse Emergency Bulletin
Attention all greenhouse crews. This is a station systems bulletin for Ring B. A pressure imbalance has been detected in pollination corridor three. Please secure loose equipment, pause all drone activity, and move to the nearest sealed junction. Oxygen levels remain stable, and there is no fire risk at this time. Maintenance teams are already responding. If you are carrying seed vault trays, leave them on the nearest rack and proceed calmly. Repeat: pressure imbalance, Ring B, pollination corridor three. Follow amber floor guidance and await further instructions.
{
"taskType": "audioInference",
"taskUUID": "8b0efad2-26ac-49f6-b307-73d84fd703b8",
"model": "inworld:tts@1.5-mini",
"audioSettings": {
"bitrate": 128,
"sampleRate": 44100,
"channels": 2
},
"speech": {
"text": "Attention all greenhouse crews. This is a station systems bulletin for Ring B. A pressure imbalance has been detected in pollination corridor three. Please secure loose equipment, pause all drone activity, and move to the nearest sealed junction. Oxygen levels remain stable, and there is no fire risk at this time. Maintenance teams are already responding. If you are carrying seed vault trays, leave them on the nearest rack and proceed calmly. Repeat: pressure imbalance, Ring B, pollination corridor three. Follow amber floor guidance and await further instructions.",
"voice": "Claire",
"speed": 1
},
"settings": {
"temperature": 0.72
}
}{
"taskType": "audioInference",
"taskUUID": "8b0efad2-26ac-49f6-b307-73d84fd703b8",
"audioUUID": "722f687f-51dc-42e8-8960-db415627f6ed",
"audioURL": "https://am.runware.ai/audio/os/a23d05/ws/5/ai/722f687f-51dc-42e8-8960-db415627f6ed.mp3",
"cost": 0.00285
}Glacier Tram Arrival Advisory
Attention passengers on the North Ice Tram. Due to high crosswinds over Span Four, arrival at Frost Hollow Station will be delayed by approximately six minutes. Please remain behind the blue safety line until the cabin comes to a complete stop. Connecting shuttle sleds to Upper Ridge will wait for all ticketed riders. Climbers transferring with gear should use the rear loading platform. Thank you for your patience, and enjoy the view across the glacier basin.
{
"taskType": "audioInference",
"taskUUID": "e0024d1f-07d9-43ac-a814-65239f21dde0",
"model": "inworld:tts@1.5-mini",
"audioSettings": {
"bitrate": 128,
"sampleRate": 44100,
"channels": 2
},
"speech": {
"text": "Attention passengers on the North Ice Tram. Due to high crosswinds over Span Four, arrival at Frost Hollow Station will be delayed by approximately six minutes. Please remain behind the blue safety line until the cabin comes to a complete stop. Connecting shuttle sleds to Upper Ridge will wait for all ticketed riders. Climbers transferring with gear should use the rear loading platform. Thank you for your patience, and enjoy the view across the glacier basin.",
"voice": "Claire",
"speed": 1
},
"settings": {
"temperature": 0.78
}
}{
"taskType": "audioInference",
"taskUUID": "e0024d1f-07d9-43ac-a814-65239f21dde0",
"audioUUID": "a0dfe4d1-d5dc-47c1-84ac-dc3f2852cc8c",
"audioURL": "https://am.runware.ai/audio/os/a18d05/ws/5/ai/a0dfe4d1-d5dc-47c1-84ac-dc3f2852cc8c.mp3",
"cost": 0.00232
}