Cantonese and English audio transcript proofreading and QA

Package options

• Basic – $56.99, delivered in 2 days: proofreading and QA for up to 30 minutes of audio against an existing transcript. We listen to the recording, compare it line by line with your text, correct misheard words, missing phrases and terminology slips, and hand back a Track Changes version plus a clean final copy. 1 revision is included.
• Standard – $100.99, delivered in 5 days: the same proofreading and QA process extended to up to 60 minutes of audio, with timestamp verification for key sections, a speaker identification check, and notes on recurring error patterns. 3 revisions are included.

What we need from you

• The domain this order relates to
• Your brief describing the audio and any preferences

Why transcript accuracy matters

Transcripts often underpin important decisions, from market research summaries to legal records, published content and training materials. A missed phrase, a misheard word or a wrongly spelled name can shift meaning or undermine credibility. Automated tools still struggle with accents, overlapping speech, background noise and mixed-language content, which is why a trained human check remains valuable.

What the service covers

• Full comparison against the audio – we listen to the recording and check it word for word against your existing transcript.
• Fixing misheard words – errors from homophones, similar-sounding phrases or unclear speech are identified and corrected.
• Recovering missing content – anything skipped in the original transcription, including meaningful filler words, is restored.
• Spelling and grammar cleanup – spelling is standardised to UK or US style as required, with punctuation and grammar made consistent.
• Fact checking – names, companies, terminology, figures and dates are checked against context.
• Speaker attribution – where several people speak, we confirm each is labelled correctly and consistently.
• Timestamp checks – existing timecodes are verified against the audio and corrected where needed.
• Two-file delivery – you receive a Word document with all edits marked using Track Changes, plus a clean finished version ready to use.

Our working process

1. You share the audio file (MP3, WAV, M4A or similar) along with any existing transcript; if none exists we can prepare one, priced separately.
2. We do a first listen to become familiar with speakers, accents and tone, flagging likely tricky sections in advance.
3. We go through the transcript line by line while listening carefully, noting every discrepancy, missing word or formatting issue.
4. Unfamiliar terms, brand names or unusual proper nouns are checked online to confirm correct spelling.
5. Corrections are applied through Track Changes with comments added where something needs clarifying.
6. A final listen at increased speed catches any remaining slips and checks overall consistency.
7. Both the marked-up file and the clean version are delivered to you.

Background and experience

• A native Cantonese speaker raised in Guangdong, comfortable with formal usage as well as fast conversational speech, slang and regional variation.
• A business-focused English degree, giving ease with professional vocabulary and corporate terminology.
• Comfortable handling mixed Cantonese-English material, typical of Hong Kong, Macau and cross-border business settings.
• Experience providing transcript QA for research agencies, media producers and corporate training teams.
• A careful, detail-focused approach that catches issues automated checkers and less experienced proofreaders can miss.

Audio types we work with

• Business interviews and executive meetings
• Focus groups and user research sessions
• Podcasts and video content
• Conference recordings and panel discussions
• Training webinars and e-learning material
• Legal depositions and witness statements
• Recordings with background noise, multiple speakers or strong accents

Practical details

• Confidentiality – client materials are handled discreetly, with an NDA available on request.
• Turnaround – a one-hour recording typically takes 24 to 48 hours, while shorter files can be turned around within 3 to 4 days depending on complexity; rush options can be arranged.
• Pricing – proofreading of an existing transcript is charged at a fixed rate per audio hour, while transcription from scratch is priced per minute or hour, with volume discounts for ongoing work.

Getting started

If you want your Cantonese or English transcripts checked thoroughly and delivered in a clean, publication-ready form, send over a sample and we can discuss a quote and trial edit before you commit.

What happens after you buy

Your order opens its own thread here the moment it is paid, and everything about that order - questions, changes and the final report - happens in it.

Questions people ask