Browse ReadThisAloud's live catalog of supported Microsoft Azure natural neural voices. Filter by language, locale, or voice and press Preview Voice to hear an actual Azure-generated sample. The preview is requested securely through ReadThisAloud.com—your browser never receives ReadThisAloud's Azure credentials.
Preview buttons do not call Azure directly. The webpage requests a controlled preview from the ReadThisAloud API. ReadThisAloud validates the voice, rate-limits the request, uses a fixed sample phrase, and returns generated MP3 audio. Repeated samples are cached server-side to reduce unnecessary Azure usage.
Voice availability is loaded from ReadThisAloud's Azure Speech resource. General-availability neural voices are shown by default; preview or unsupported models can be excluded by the server policy.
Microsoft's broader Speech catalog can contain more voices than ReadThisAloud chooses to expose. ReadThisAloud may filter experimental, preview, specialized, regional, higher-cost, or otherwise unsuitable models.
A voice labeled en-US, en-GB, en-PH, or another locale is designed around a particular language and regional speaking profile.
Names, acronyms, abbreviations, medical terms, product names, URLs, numbers, and unusual punctuation may sound different from what a particular listener expects.
Microsoft or ReadThisAloud can add, update, replace, region-limit, or retire voices. Business workflows should have an acceptable backup voice.
The public website intentionally does not provide an unrestricted free-text Azure synthesizer. This protects ReadThisAloud from abuse and uncontrolled cloud charges.
Inside the Reader, supported natural narration can count toward the applicable monthly narration allowance regardless of which production voice is selected.
ReadThisAloud owns and controls the backend connection to its Speech resource. Customers do not receive ReadThisAloud Azure subscription keys or private service credentials.
Exporting synthetic narration does not give a customer copyright or other rights in source content the customer was not already entitled to use.
When pronunciation or exact wording matters professionally, preview representative text in the Reader and review generated audio before distribution.
Preview the actual Azure voices, then use your preferred supported voice inside ReadThisAloud with synchronized word highlighting, navigation, playback controls, and WAV export.
