Language
Pre-built NLP and speech services — no ML expertise required. They chain together into pipelines.
| Service | Direction | Job | Not to confuse with |
|---|---|---|---|
| Amazon Comprehend | Text → meaning | Sentiment, entities, key phrases | Extracts meaning, not text from images |
| Amazon Translate | Language → language | Neural machine translation | Converts, doesn’t analyze |
| Amazon Transcribe | Speech → text | Automatic speech recognition | Inverse of Polly |
| Amazon Polly | Text → speech | Lifelike voice synthesis | Inverse of Transcribe |
- Real-time spoken translation pipeline: Transcribe → Translate → Polly.
- Comprehend understands text you already have; pair with Amazon Textract to get text out of documents first.