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03 · Foundation Models & LLMs · Topic

What are Speech and Audio Models?

Speech and audio models are AI models trained to understand, transform, or generate spoken language and sound.

What is it?

Speech and audio models handle different sound tasks.

Speech Recognition / ASR
Audio → Text
Text-to-Speech / TTS
Text → Speech
Audio Generation
Input / prompt → Generated sound

These are related capabilities, but they are not one interchangeable process.

Think of it like...

A group of specialists working with sound:

One listensand transcribes.
One readstext aloud.
One createsnew audio.

How it works

Speech RecognitionAudio → Audio Model → Text
Text-to-SpeechText → Speech Model → Audio
Audio GenerationPrompt / Condition → Audio Model → New Audio

Real-world examples

Voice transcription

A meeting recording becomes searchable text.

Voice assistants

A system recognizes speech and responds with spoken audio.

Speech synthesis

Written content becomes a natural-sounding voice.

Music / sound generation

A prompt becomes a new musical phrase or sound effect.

What it is NOT

Speech Model ≠ TTS

Speech models: A broad family for speech tasks.

TTS: One task that turns text into speech.

Audio Model ≠ LLM

Audio model: Works with sound representations or waveforms.

LLM: Primarily works with language tokens.

Speech Recognition ≠ Voice Understanding in every sense

Recognition: Usually transcribes spoken words.

Understanding: May also require language, context, intent, and emotion analysis.

Remember this

Speech and audio models turn sound into useful representations, text, or newly generated audio depending on the task.

Video

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A video will be added when a real explainer asset is available.

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