Do dictionary updates affect historical sessions automatically?

Not automatically. You can use batch replacement or re-processing in History details to apply new rules to existing transcripts.

What errors is phonetic replacement best for?

It is best for homophones and domain-specific terms (names, product terms, etc.) where the model hears the correct sound but outputs wrong characters.

Is dictionary data uploaded to cloud services?

No. Dictionary data and rules are stored strictly on your local device to ensure privacy.

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📖 Custom Dictionary Optimization

Speech recognition models sometimes misidentify professional terms, names, or industry jargon as homophonic errors. Through the custom dictionary feature, you can establish automated correction rules, allowing the system to automatically fix these known errors after recognition—making results more accurate over time.

Last Updated: 2026-04-21 · Language: English

1. Three Correction Rules

Access the "Dictionary" page from the left sidebar to manage the following three rule types:

Dictionary rule management interface

Deletion Rules

Thoroughly remove specified words from the recognition result. Ideal for filtering filler words and repeated phrases.

Example: Adding "um", "uh", "you know" will automatically clear these words from the transcript.

Text Replacement

Directly replace misrecognized text with correct text. Ideal for fixing consistent typos.

Example: "AI assistent" → "AI Assistant", "Meeting notes" → "Minutes"

Phonetic Replacement (Chinese Only)

Correct errors based on phonetic matching. This is the most effective way to fix errors when the model captures the correct sound but outputs wrong characters.

Input the target characters, and the system automatically generates the corresponding pinyin.
Example: Inputting "永磁" (yong3ci2) will automatically correct all homophonic errors like "泳磁" or "勇磁".

2. Smart Term Extraction

If you have a correct reference text (e.g., meeting agenda, product manual), you can let the system automatically extract professional terms from it:

On the Dictionary page, click "Smart Extraction".
Paste a snippet of reference text into the input box.
Select extraction method (Proper Nouns / High Frequency / New Terms) and quantity.
Click "Start Analysis" to see candidate terms.
Review the list and import confirmed terms to the dictionary with one click.

Smart term extraction interface

This feature is perfect for quickly building a professional word list before starting a new industry project.

3. Bulk Import Phonetic List

If you already have a large list of terms to be corrected, use the bulk import function to load phonetic lists all at once, saving the trouble of adding items individually.

4. Easiest Maintenance Method

You don't need to visit the Dictionary page specifically. When performing batch replacement or deletion in History Details, check "Sync Dictionary" to automatically save the modification as a persistent rule.

Usage Tip: Prioritize using "Phonetic Replacement" for Chinese professional terms. It has broader coverage than text replacement—one phonetic rule can correct all homophonic errors.