Best Tools for Converting Audio to Transcripts? 2026 Hands-On Test of 2 Tools: NotebookLM Is Free, but This One Is More Complete

Back when I was a graduate student conducting user interviews, a single interview transcript would take up an entire evening. Then NotebookLM came along—I could upload the recording and get a text transcript in minutes, plus ask it about key points. I thought that was enough.

But later, I realized that when meeting notes aren't just personal notes but need to become the basis for team action, NotebookLM is missing some key features. So, I started testing another tool: Tinrec.

In this article, I'll share my hands-on experience comparing these two tools specifically for converting audio to transcripts, so you can see which one fits your work scenario better.

Tinrec vs NotebookLM: Quick Overview

NotebookLM is Google's AI notebook, great at turning uploaded audio files into a knowledge base you can query and summarize. Tinrec, on the other hand, is an AI meeting notes and team collaboration tool that handles everything from live recording and online meetings to post-meeting action items and reports in one go.

Basic info:

• NotebookLM: Free, with a 200MB upload limit per file and up to 50 sources per notebook.
• Tinrec: Offers a free tier and paid plans (Personal Pro, Team), supports multiple input sources, and the Team plan includes a dedicated workspace and admin features.

I'll compare them across four dimensions: recording sources, post-processing, team collaboration, and Chinese language experience.

Dimension 1: Recording Sources and Input Methods

NotebookLM requires you to record audio with another tool first, then upload the file. It doesn't support real-time transcription, meaning you can't see the transcript as the meeting happens. This can be a bit slow for situations where you need to grasp the discussion immediately.

Tinrec supports real-time transcription, so you can open the app on your phone or computer during a meeting and watch the text appear as you record. More importantly, Tinrec's desktop app can record online meetings without a bot—it captures the system audio directly, so you don't need to invite a bot to join Zoom, Meet, or Teams. This way, you get real-time transcripts for online meetings too.

(Screenshot placeholder: Tinrec desktop app recording a meeting, with an arrow pointing to the system audio capture option)

→ This dimension: Tinrec wins, offering more comprehensive input scenarios, especially for online meetings.

Dimension 2: Transcript Post-Processing and Workflow

After NotebookLM generates a transcript, it can auto-summarize, answer questions, and even help you organize key points. But its output leans more toward "notes"—to turn it into action items, meeting minutes, or reports, you'll need to copy it to other tools and do more work.

Tinrec doesn't just give you the transcript; it also auto-generates summaries, chapters, key points, and action items. You can ask questions directly about the meeting content and export to Notion, Google Docs, and more with one click. Plus, Tinrec's Agent post-processing can generate reports and tables based on the meeting content, automating the post-meeting paperwork.

(Screenshot placeholder: Tinrec's meeting summary panel showing chapters, action items, and export buttons)

→ This dimension: Tinrec wins, with more complete post-processing that fits real workflows better.

Dimension 3: Team Collaboration and Knowledge Retention

NotebookLM is essentially a personal notebook. While you can share notebooks with others, it lacks team member management, role-based permissions, usage analytics, and other governance features. Meeting data can easily get scattered across individual accounts, and if a member leaves, their data might disappear with them.

Tinrec has a dedicated team workspace where meeting recordings, transcripts, and action items belong to the team. Admins can invite members, allocate seats, view usage and audit logs, and even set up an audio recycle bin. When a member leaves, their data can be transferred to someone else, so nothing is lost.

(Screenshot placeholder: Tinrec team workspace member management interface, with an arrow pointing to role and seat settings)

→ This dimension: Tinrec wins, clearly more professional for team scenarios.

Dimension 4: Chinese Meetings and Professional Terminology

NotebookLM supports Chinese, but when dealing with mixed Chinese-English content, Taiwanese terminology, or industry jargon, it sometimes needs extra prompts to adjust, and it may not always get it right.

Tinrec is optimized for Chinese meetings, supporting Traditional Chinese and mixed Chinese-English content, and offers real-time translation and bilingual viewing. The Team plan also lets you maintain "team hotwords," adding company product names, project codes, etc., to the dictionary to improve recognition.

(Screenshot placeholder: Tinrec team hotwords settings page, with an arrow pointing to the add hotword field)

→ This dimension: Tinrec wins, better suited to Taiwanese workplace needs.

What Unique Advantages Does Each Have?

Tinrec's unique advantages:

1. Bot-free online meeting recording: No need to invite a bot; the desktop app captures system audio directly, keeping meetings cleaner.
2. Post-meeting Agent processing: Automatically generates meeting minutes, reports, and tables, ready to deliver.
3. Team workspace and governance: Turns meeting data into team assets, with roles, seats, usage, audit, and recycle bin support.
4. Multi-platform: Available on web, desktop, and mobile, with no extra hardware needed.

NotebookLM's unique advantages:

1. Completely free, ideal for personal knowledge organization and student note-taking.
2. Deep integration with the Google ecosystem, allowing direct linking to Google Drive documents.

Summary: Which One Should You Choose?

• If you only occasionally convert audio to text for personal notes, NotebookLM is free and sufficient.
• If you need to record online meetings, automatically organize action items and reports after meetings, and share meeting data with your team, Tinrec is more complete.
• If you care about Chinese meeting transcription quality and team management, Tinrec is a better fit.

In a nutshell: For most professionals who need meeting notes and team collaboration, Tinrec is the more complete choice. I recommend trying the free version with your own recordings to see how it works.

Quick start checklist:

1. Try Tinrec's free version—record a meeting or upload an audio file.
2. Check if the transcript quality, summary, and action items meet your needs.
3. If your team needs it, consider upgrading to the Team plan.

References

• How to Use NotebookLM to Quickly Convert Audio Files into Transcripts and Ask Questions to Uncover Key Points?
• Master Meeting Notes! How to Do AI Speech-to-Text Transcription? Gemini Notebook, Gemini, EchoScript Operation Guide | 104 Career Force
• 📋 Google NotebookLM｜Meeting Minutes Auto-Generation: Still Struggling to Type Transcripts After Meetings? Now Use NotebookLM to Do It All Automatically. 🎙️ Speech-to-Text: Upload audio files (up to 200MB), auto-recognize content, no extra software needed. 📝 Transcript Generation: Use prompts to convert to transcripts with timestamps and speaker labels. Example format: 00:00:00: Speaker: Content ⚙️ Customization: Can output text and format suitable for Taiwanese context. Supported commands: 1️⃣ Hide sources 2️⃣ Use Taiwanese terminology 3️
• Google NotebookLM Handwritten Notes + Audio-to-Text Hands-On Tutorial: Li Bo-Feng shared Steven Johnson's recent point about how students will learn and take notes in the future, so today I used my iPhone and NotebookLM to test it out with the Biosafety and Compliance lecture I attended at Faculty Academy. 1. Jot down key points with pen and paper while listening 2. Record the lecture with my phone simultaneously 3. Use an iPhone shortcut to convert photos of paper notes to text (NotebookLM can't yet effectively recognize handwritten English in uploaded PDFs, so I first
• NotebookLM Transcript Tutorial (2026): Automatically Convert Meeting Recordings to Traditional Chinese Text, Completely Free | Little Penguin Penchan