Speech 2.6 HD Text To Speech Specifications
Last verified: August 3, 2026
Speech 2.6 HD Text To Speech converts written scripts into a single generated voice track through a required "Prompt" and "Voice ID" selection. It is a text-only synthesis workflow for narration, explainers, announcements, and other prepared copy that needs a spoken form.
MiniMax's release focuses on system behavior rather than a layer-by-layer architecture: it describes an optimized audio-generation pipeline, stronger prosodic naturalness, and direct parsing of URLs, email addresses, phone numbers, dates, and monetary amounts. For this mode, the practical result is less manual rewriting when a script combines spoken language with structured information.
Official model documentation lists support for 40 languages and describes the HD variant as quality-focused. This page narrows that broader capability into a single-script, single-voice render with a fixed creative profile. For creators, that shifts production from arranging a recording session to validating text, voice identity, and delivery settings in one pass; authorization and synthetic-output disclosure should remain part of the specification.
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Verified Runtime and Control Limits
Listed generation speed is medium; these facts reflect the controls and limits exposed on this page.
Prompt capacity
Up to 5,000 characters
Voice menu
8 selectable Voice IDs
Emotion menu
10 choices, including auto and neutral
Audio encoding
8,000–44,100 Hz; 32,000–256,000 bps; mono or stereo
Output estimate
1 audio result; 20 seconds expected
Prepare the Final Script in One Text Field
Choose a Voice ID, Then Check Authorization
Preconfigure Audio Delivery
Speech 2.6 HD Text To Speech Workflow Specification
Four steps take the finalized script from text input to downloaded audio.
Step 1: Write the final script
Enter the exact words to be spoken in the "Prompt" field, staying within the 5,000-character limit.
Step 2: Select a Voice ID
Choose one of the listed Voice ID options; this required selection defines the voice used for the run.
Step 3: Configure optional controls
If needed, select Emotion and set Sample Rate, Bitrate, Channel, Volume, and Speed before generation.
Step 4: Generate and download
Click "Generate" and download the single audio result after processing finishes.
Workflow Fit Matrix for Scripted Voice Output
Use these criteria to decide whether this controlled text-only workflow matches the production requirement.
| Criterion | Our Tool | Alternatives | Best For |
|---|---|---|---|
| Voice source | Uses one required Voice ID selected from eight listed options. | Use a voice-cloning or human-recording workflow when a specific person's authorized voice must define the output. | Narration and spoken copy using listed voices |
| Performance direction | Provides page-level Emotion, Speed, and Volume controls for the complete script. | A human session or multi-track production workflow is better for line-by-line direction and several performers. | Single-voice explainers, announcements, and stories |
| Audio delivery | Configures sample rate, bitrate, and mono or stereo output before rendering. | Use post-production software when music, sound effects, or several independently mixed tracks are required. | Standalone voice tracks with predefined encoding |
| Generation profile | Produces one result with an expected 20-second processing time and 6-credit cost under a fixed Creative profile. | Choose a workflow designed for live streaming or a different quality profile when those constraints are essential. | Planned, non-live speech generation |
Choose this workflow for prepared text that needs one downloadable voice track, configurable delivery, and predictable page-level limits.
Voice Ethics Preflight Checklist
Before submitting the script, verify these four responsibility conditions and proceed only after each concern is resolved.
1. Before you generate, verify voice authorization.
Cause: A synthetic voice can be presented as a real person's statement, endorsement, or instruction, creating impersonation and fraud risks.
Fix: If the audio represents a real person, employee, customer, or brand, obtain permission or remove the identity claim from the script and surrounding context.
Retry: Submit only after authorization is documented or the output no longer implies a real speaker.
2. Before you generate, verify the intended context.
Cause: Realistic synthetic speech may be misinterpreted when used for testimonials, sensitive instructions, financial requests, emergencies, or identity verification.
Fix: State the legitimate purpose, remove deceptive framing, and avoid using generated speech as proof of identity or authority.
Retry: Proceed when the audience and distribution context cannot reasonably mistake the audio for genuine evidence.
3. Before you generate, verify the disclosure plan.
Cause: Unlabeled synthetic audio can weaken content provenance and audience trust.
Fix: Add an appropriate spoken or adjacent written disclosure whenever listeners could otherwise assume the voice is an authentic recording.
Retry: Generate after the disclosure language and its placement have been approved for the intended channel.
4. Before you generate, verify jurisdiction and usage rights.
Cause: Consent, publicity, biometric, advertising, calling, and election requirements may vary by location and use case.
Fix: Check the applicable service terms and local requirements, and obtain qualified legal review for regulated or high-risk distribution.
Retry: Proceed only after the responsible party confirms that the script, voice framing, and distribution plan are permitted.
Frequently Asked Questions
Can I generate speech using only text and a Voice ID?
Yes. "Prompt" and "Voice ID" are the required inputs. Emotion, Sample Rate, Bitrate, Channel, Volume, and Speed are optional, while the Creative quality profile is fixed and cannot be edited.
How should I format a script for clearer pacing and pronunciation?
Use complete sentences, deliberate punctuation, and paragraph breaks to signal phrasing. MiniMax's T2A documentation recommends newline characters for paragraph boundaries, and the Speech 2.6 release documents handling for URLs, email addresses, phone numbers, dates, and monetary amounts. Spell out any item whose pronunciation must be exact.
How should I choose among the available Voice IDs?
The context lists Wise_Woman, Calm_Woman, Inspirational_girl, Lively_Girl, Lovely_Girl, Sweet_Girl_2, Exuberant_Girl, and Abbess. Do not rely on the label alone for a final production decision; use a representative line and evaluate whether the generated delivery fits the script and intended identity.
Which sample rate, bitrate, and channel should I select?
Match the settings to the destination that will receive the audio. Mono is often sufficient for a standalone spoken track, while stereo should be selected when the downstream workflow specifically requires it. Higher sample rate or bitrate does not correct wording, pronunciation, or delivery problems.
What should I change if the speech sounds too fast, flat, or emotionally mismatched?
First revise punctuation and sentence length, then test a more suitable Emotion setting or adjust Speed and Volume. Change one variable per run so the effect is identifiable; if the timbre remains unsuitable, select another Voice ID rather than repeatedly changing unrelated encoding controls.
Can one generation use multiple Voice IDs?
The page provides one Voice ID selection and returns one audio result per generation. For a multi-character production, create separate runs with the appropriate Voice ID for each part and combine the tracks in an external audio editor.
Can I upload a voice sample, add sound effects, or use negative prompts?
No. This workflow accepts text rather than an audio prompt and uses the listed Voice IDs. Sound effects, seed control, and negative prompts are unavailable. The page supports an AI prompt helper for drafting, but it does not expose a separate model-side prompt-enhancement control.
Can I use the generated speech commercially or imitate a real person?
Commercial-use rights are not specified in the provided tool context, so review the applicable service terms and confirm that the script, brand assets, and intended distribution are permitted. Do not represent generated speech as a real person's recording without authorization, and consider clear synthetic-output disclosure wherever listeners could be misled. Requirements may vary by jurisdiction and use case.