Fun-AudioGen-VD - A sound design model launched by Ali Tongyi Lab

What is Fun-AudioGen-VD?

Fun-AudioGen-VD is an innovative large-scale speech model launched by the speech team of Alibaba Tongyi Lab, positioned as a professional tool for "sound design and scene-based audio generation". The model supports "FreeStyle" command generation, capable of generating high-quality audio containing specific timbre, emotional expression, and a complete auditory scene in one go based on natural language descriptions, achieving integrated sound creation of "character + scene". In terms of timbre control, Fun-AudioGen-VD can precisely adjust basic attributes such as gender, age, accent, pitch, and speech rate, supporting timbre characteristics such as hoarseness, clarity, and magnetism, as well as emotional expressions such as anger, sadness, and determination, simulating complex psychological states such as "outwardly calm but inwardly trembling". In scene construction, the model can overlay environmental sounds such as city noise and battlefield booms, simulate spatial reverberation such as cathedrals and underwater environments, reproduce the listening experience of old-fashioned radios and walkie-talkies, and achieve dynamic environmental interactive effects such as intermittent wind noise and echo changes.

Main functions of Fun-AudioGen-VD

• FreeStyle free command generationIt supports the direct generation of target timbre and complete auditory scene using natural language descriptions, without the need for complex parameter settings, realizing integrated audio creation of "character + scene".
• Refined tone controlIt allows adjustment of basic attributes such as gender, age, accent, pitch, and speech rate, and supports voice quality characteristics such as hoarseness, clarity, deepness, and magnetism, as well as emotional expressions such as anger, sadness, excitement, and determination.
• Complex psychological state simulationIt can present subtle emotional layers such as "outwardly calm but inwardly trembling", and realize the vocal expression of the character's inner activities.
• Immersive scene constructionIt can overlay ambient sounds such as city noise, coffee shop background, and battlefield roar to create a realistic auditory atmosphere.
• Spatial reverberation simulationSupports echo effects in specific spaces such as cathedrals, metal prisons, and underwater environments, enhancing the sense of space in the scene.
• Device sound filterIt restores the unique sound characteristics of old-fashioned radios, walkie-talkies, breathing masks, telephones, and other equipment.
• Dynamic Environment InteractionIt enables real-time environmental interaction, such as intermittent wind noise, echo changes, and hoarse effects, to enhance the realism of audio.
• Character preset simulationIt includes built-in voice templates for typical roles such as customer service, veterans, children, AI assistants, and announcers, allowing for quick matching of creative needs.

The technical principle of Fun-AudioGen-VD

• Large model architecture foundationBuilt on Alibaba's Tongyi speech big data model technology stack, it adopts a deep learning generative architecture and supports end-to-end text-to-audio generation.
• Multi-dimensional acoustic feature decouplingDecouple and model acoustic attributes such as timbre, emotion, speech rate, and sound quality to achieve independent control and combination of each dimension.
• Scene-based audio fusion technologyIt employs a multi-track audio synthesis mechanism, which processes elements such as human voice, ambient sound, spatial reverberation, and device filters in layers before merging and outputting them.
• Physical acoustic simulationThe algorithm simulates the physical properties of sound wave reflection, reverberation attenuation, and medium propagation in real space to recreate the auditory experience of scenes such as cathedrals and underwater environments.
• Equipment distortion modelingModeling the frequency response characteristics, compression distortion, and noise floor of old-fashioned radios, walkie-talkies, and other equipment to achieve a retro listening experience.
• Dynamic Interaction EngineIt supports dynamic adjustment of real-time environmental parameters (such as wind noise intensity and echo delay) to generate natural audio with temporal variations.
• Natural Language Understanding ModuleThe built-in semantic parsing layer maps abstract descriptions such as "outwardly calm but inwardly trembling" into specific combinations of acoustic parameters.
• Streaming generation optimizationOptimizes inference efficiency for real-time application scenarios and supports low-latency API call responses.

How to use Fun-AudioGen-VD

• API call accessYou can obtain the API key through the Alibaba Cloud Bailian platform and use it by calling the text-to-speech interface; no local model deployment is required.
• Official documentation referenceVisit the Alibaba Cloud Help Center to view the detailed API documentation (https://help.aliyun.com/zh/model-studio/text-to-speech).
• FreeStyle command input: Describe the target sound directly using natural language, such as "a young woman who appears calm but is trembling inside speaks on a walkie-talkie in a noisy coffee shop."

Application scenarios of Fun-AudioGen-VD

• Film and animation dubbingIt can quickly generate voice-over materials that match the character's setting, support complex emotions and scene atmospheres, and reduce the cost of professional voice-over.
• Game character voice actingGenerate personalized voices for NPCs and the main character, supporting different emotional states and switching between combat/exploration scenes.
• Audiobook productionIt automatically matches character voices with ambient sounds based on the novel's plot, enhancing the listener's immersion.
• AI intelligent agent voice designCustomize unique voices and brand voices for virtual assistants and customer service robots.
• Advertising and Marketing AudioGenerate narration and scene sound effects that match the brand's tone, and quickly produce multiple versions of test materials.
• Podcasts and Radio DramasSimulates recording effects in different spaces (such as telephone interviews and live reports) to enrich the program's layers.