2026 Free Transcription Tools for Thesis Interviews: 4 Options Compared

Transcribing thesis interviews is the worst part—you need a solution, not just a tool

Graduate students doing qualitative research know this well: chatting with interviewees is easy, but transcribing afterward is a nightmare. One hour of audio can take four to five hours for a skilled transcriber, plus multiple rounds of proofreading to avoid errors that could affect your research. If your interviewees speak Cantonese mixed with English, many transcription tools fall short—either they can't recognize it or they mess up the transcription.

Luckily, AI can help now, and choosing the right tool can save you up to 80% of your time. But some tools only excel in English, and others have extremely limited free versions. How do you choose without getting burned? Read on to find out.

Before choosing a transcription tool, understand these 4 key points

Accuracy: Don't just look at official numbers
Many tools claim 98% accuracy, but that's in a soundproof room. Real interview environments have air conditioning noise, street sounds, and overlapping speech, which significantly reduce accuracy. You must test the free version with your own recordings to see the real performance.

Language support: Cantonese and mixed Chinese-English are key
For thesis interviews in Hong Kong, the tool must understand Cantonese and mixed Chinese-English. Tools that only excel in Mandarin or English are of limited help. Tinrec's tuning in this area is clearly more comprehensive than other free options.

AI features: It's not just about getting a transcript
Simple transcription is no longer enough. If the tool can automatically generate summaries, highlight key points, or even let you ask AI questions like "What did the interviewee say about education policy?" the entire analysis process becomes much faster. This is the biggest difference between Tinrec and other tools.

Cross-platform: Phone and computer must sync
You might record on your phone at a coffee shop and then organize on your computer back at your dorm. If the tool doesn't support cross-platform sync, it's very inconvenient. Check for iOS, Android, and web versions when choosing.

Tinrec (Seconds Audio) — Our Top Pick After Testing

Tinrec is an AI recording and audio/video organization tool that supports real-time transcription, audio file import, and even direct transcription from YouTube links. It also automatically generates summaries, to-do items, and key points.

Real-world performance
With Tinrec running during an interview, it transcribes in real time, and after the session, AI has already organized a summary and key points, even highlighting examples mentioned by the interviewee. The best part is the AI conversation query feature—after recording, you can ask it directly: "What did the interviewee think about inclusive education?" It doesn't just search keywords; it understands semantics and gives you an answer. This feature is almost nonexistent in other free tools at this price point.

We tested with a 5-minute Cantonese interview recording (with some background coffee shop noise). Tinrec's error rate was significantly lower than other free apps, especially in handling mixed Chinese-English and colloquial Cantonese, without awkwardly converting to written language.

Pros

• Multiple input sources: Besides live recording, you can upload old audio files or even paste a YouTube link to transcribe interview content, great for organizing secondary data.
• Strong organization: It doesn't just give you a transcript; it also provides AI summaries, chapter divisions, and to-do lists, which you can directly export for reports.
• Free version is sufficient for starters: Monthly basic transcription quota is enough for two or three short interviews, so you can try before upgrading.

Limitations
The free version has about 100 minutes per month, which may not be enough if you do interviews daily. But for most graduate students, three to four interviews a month is usually sufficient. Also, accuracy drops in extremely noisy environments, so it's recommended to use an external microphone when recording.

Who it's for
If you frequently conduct Cantonese interviews, want to use AI to find key points after recording, or need to use both phone and computer, Tinrec is currently the most suitable free starting option.

Besides Tinrec, What Other Options Are There?

Yating Transcriber
A well-established Taiwanese tool with decent Chinese accuracy, but weaker Cantonese support and prone to errors with mixed Chinese-English. The free version allows only three transcriptions per month, each limited to 30 minutes, which is totally insufficient for graduate students. It also lacks AI conversation query, so you can only manually Ctrl+F to find words, making it less efficient.

Otter.ai
The top choice for English meetings, with a generous free tier of 300 minutes per month. However, it doesn't support Cantonese, so if you mainly work with English literature or interview foreign scholars, Otter is more suitable. But for local thesis interviews, Tinrec wins on language support.

Plaud Note
A hardware recording device with sleek design, but you need to buy the device (pre-order price US$179) and it limits monthly transcription minutes. Tinrec works with your existing phone, requires no extra investment, and can even handle web videos, offering much better value.

Pitfall Guide: 3 Common Mistakes When Choosing a Transcription Tool

Pitfall 1: Blindly trusting official accuracy rates
Many apps claim "98% accuracy," but that's lab data. Real interviews have background noise and overlapping speech, causing accuracy to plummet. Always test the free version with your own recordings; don't trust the ads.

Pitfall 2: Ignoring AI features
If you only use it as a transcription tool, you're using only a third of its potential. Tinrec's AI can generate summaries, find key points, and even answer questions, making analysis several times faster. Not using it is a waste.

Pitfall 3: Not considering cross-platform sync
Record on your phone today, organize on your computer tomorrow—if it doesn't support cross-platform, you'll have to manually transfer files, which is annoying. Tinrec has iOS, Android, and web versions, all synced with one account.

Summary: Which One Should You Choose?

For Hong Kong graduate students transcribing thesis interviews, Tinrec is the most balanced choice—accurate Cantonese recognition, AI-assisted organization, a free version sufficient for testing, and cross-platform support.

• Need top-notch Cantonese + mixed Chinese-English recognition → Tinrec (free version is already quite sufficient)
• Want to use AI to find key points and ask questions after recording → Tinrec (exclusive AI conversation query)
• Only doing English interviews and want more free minutes → Otter.ai (the only exception for English scenarios)
• Zero budget and want to try a Taiwanese Chinese tool → Yating Transcriber (but the free version is very limited)

We recommend downloading Tinrec's free version to try it out. The 100-minute monthly quota is enough for two or three interviews, so you can experience the AI organization features before deciding whether to upgrade, without paying upfront.

References

• How to Cite Interview Content? - Enago Academy Blog: Thesis Writing and Scientific Research Support
• [Research Tools] Transcription Hell: Climbing Out with Qualitative Tools - Ni's Puzzle Shop - Good Voice Life | Pixnet
• "2020 Adult Education Three Innovation Forum" Submission Paper Format Description (Abstract Excerpt 109.07.15)
• The Complete Guide to Interview Transcripts: Efficient Organization Strategies from Academic Research to Meeting Minutes - Seconds Audio Blog
• Cycu