ASR vs TTS
ASR (Automatic Speech Recognition) and TTS (Text-to-Speech) both come up in ai & ml conversations and get confused. Here's the plain-English difference, side by side, so you can use each one with confidence.
The key difference: ASR refers to automatic speech recognition, while TTS refers to text-to-speech — they describe different things even when they show up in the same sentence.
ASR — Automatic Speech Recognition
AI technology that converts spoken audio into written text. The foundation of voice assistants and transcription tools.
TTS — Text-to-Speech
AI technology that converts written text into spoken audio. Modern TTS produces near-human voices in dozens of languages.
When to use ASR
Reach for "ASR" when the conversation is specifically about automatic speech recognition. AI technology that converts spoken audio into written text. The foundation of voice assistants and transcription tools.
When to use TTS
Reach for "TTS" when the conversation is specifically about text-to-speech. AI technology that converts written text into spoken audio. Modern TTS produces near-human voices in dozens of languages.
FAQs
What is the difference between ASR and TTS?
ASR stands for Automatic Speech Recognition — AI technology that converts spoken audio into written text. The foundation of voice assistants and transcription tools. TTS stands for Text-to-Speech — AI technology that converts written text into spoken audio. Modern TTS produces near-human voices in dozens of languages.
Are ASR and TTS the same thing?
No. They're often used in the same conversation because they're related, but they describe different concepts. ASR = Automatic Speech Recognition. TTS = Text-to-Speech.
When should I use ASR vs TTS?
Use ASR when you're specifically referring to automatic speech recognition. Use TTS when the topic is text-to-speech.