Pronunciation, Timing and Speech QA

Repeatable listening test

grapheme-to-phoneme conversion

grapheme-to-phoneme conversion needs a stable corpus and a clear failure definition. A polished sample cannot reveal regressions in names, numbers, acronyms, boundaries, or long-form consistency.

Review current samples, pricing, limits, and documentation before production use.

Regression corpus

Turn listening decisions into repeatable evidence

QA lens 1

Test corpus

Collect representative and deliberately difficult cases for grapheme-to-phoneme conversion, including names, numbers, abbreviations, punctuation, and code-switching. Begin with a listener task: after hearing the grapheme-to-phoneme conversion sample, ask what information was understood and what required replay. Review grapheme-to-phoneme conversion on the actual playback device and connection profile instead of relying only on a studio headset.

QA lens 2

Signal checks

Validate available timestamps, metadata, duration, clipping, silence, and format before subjective listening. Keep the grapheme-to-phoneme conversion acceptance threshold measurable enough that a second reviewer can reach the same conclusion. Record the script revision, voice, model, reviewer, and decision so the grapheme-to-phoneme conversion result can be reproduced after a later change.

QA lens 3

Human rubric

Score intelligibility, pronunciation, pacing, emphasis, consistency, and correction effort using the same instructions. Add the approved grapheme-to-phoneme conversion passage to a lightweight regression set and listen again before a major release. When grapheme-to-phoneme conversion fails its acceptance check, retain the request metadata and sanitized timing—not sensitive source text—in the incident note.

Acceptance method

Test grapheme-to-phoneme conversion against a stable, difficult corpus

grapheme-to-phoneme conversion needs a stable corpus and a clear failure definition. A polished sample cannot reveal regressions in names, numbers, acronyms, boundaries, or long-form consistency.

Keep difficult text fixtures, expected pronunciations or timings, listening notes, and approved reference outputs tied to model and script versions.

Version with every result

  • Version the text, lexicon, voice, model, and settings.
  • Keep machine checks deterministic and separate from listening scores.
  • Use at least one difficult regression passage.
  • Attach every correction to the exact segment and revision.
Gate 1Define

Write the expected behavior and failure threshold.

Gate 2Run

Generate the fixed corpus and collect metadata plus listening notes.

Gate 3Compare

Review changes against the last approved reference and document the decision.

Topic-specific implementation

A working test for grapheme-to-phoneme conversion

This guide addresses “how to implement grapheme-to-phoneme conversion for TTS” with a small, reproducible prototype and the evidence needed to debug or approve it.
Step 01

Define the contract

Store the grapheme-to-phoneme conversion fixture as input text, locale, voice/model settings, expected pronunciation or timing behavior, and a stable reference result.

Step 02

Run the smallest useful test

For “how to implement grapheme-to-phoneme conversion for TTS”, include one common case and three edge cases with numbers, punctuation, abbreviations, or ambiguous tokens. Run the same inputs again for “grapheme-to-phoneme conversion evaluation for synthetic speech”.

Step 03

Keep diagnostic evidence

Separate machine observations—duration, timestamps, silence, clipping, token or phoneme output—from listening scores for intelligibility, pronunciation, pacing, and correction effort. Use Pronunciation Lexicon Specification for the notation or test method.

Reader questions

What this guide helps you work through

Format: Speech control or QA playbook, Evidence-gated comparison / evaluation. Focus: Lexicons, alignment, metadata, and repeatable quality testing.
  • Question 01 how to implement grapheme-to-phoneme conversion for TTS
  • Question 02 grapheme-to-phoneme conversion evaluation for synthetic speech
  • Question 03 TTS API with grapheme-to-phoneme conversion

Primary references

Documentation to verify before implementation

Topic sources address the named technology or standard; category sources add broader context. Neither establishes an Audixa capability, provider endorsement, or requirement outcome.
topic source Pronunciation Lexicon Specification

Primary documentation selected for the grapheme-to-phoneme conversion implementation boundary. Verify its current behavior and version.

Read primary source
category source Microsoft SSML overview

Broader category documentation used to identify terminology. It does not establish an Audixa capability.

Read primary source

Verified facts

What the product currently documents

Current source Fixed public voice samples are available for review before purchase.

Samples are fixed previews, not a free custom-generation endpoint.

Review source
Current source Current plans, balances, rates, limits, and commercial terms are published on the pricing page.

Pricing can change; use the linked page as the current source.

Review source
Current source The current public Pay As You Go plan lists 2 concurrent requests.

Plan limits can change; verify the linked pricing page before deployment.

Review source

Decision notes

Questions specific to grapheme-to-phoneme conversion

Can one quality score replace listening review?

No. Combine deterministic checks with structured listening for the actual audience and content.

How should pronunciation fixes be tested?

Add the corrected term in realistic sentence contexts and keep it in the regression corpus.

What makes a timing test reproducible?

Pin the text, model, voice, settings, runtime, and measurement method.

Pronunciation, Timing and Speech QA

Test grapheme-to-phoneme conversion with your own acceptance criteria.

Review current samples, pricing, limits, and documentation before production use.
Hear Voice Samples