Audio to Text: How to Convert Any Audio File (Free and Professional Options)

You have an audio file and need the words written down. Maybe it's an interview, a lecture, or a quick voice memo. Converting audio to text is called audio transcription, and it saves you from sitting there pausing, rewinding, and typing everything yourself.

For a short recording you only need to transcribe once, a free tool may be enough. If you're doing this regularly or working with longer files, paid AI software usually gives you higher limits and more features. And when the recording is hard to hear, people keep talking over each other, or accuracy matters more than speed, a human transcription service may be the better choice.

We'll cover all three options and show you when to use each one.

Audio to Text: Quick Free Options

A short audio file doesn't always need a paid transcription tool. Google Docs, Whisper, Happy Scribe, and Otter all give you a way to get text for free, although the limits are different. Fireflies Talk is another option if you want to dictate text into the apps you use.

Google Docs and Fireflies Talk work a little differently from the other tools here. Both are built for live dictation, while the others turn recordings into text.

Fireflies Talk gives you free, unlimited dictation through the Fireflies desktop app. Hold Fn on Mac or Ctrl + Win on Windows while you speak. When you let go, your words appear as polished writing in whatever app you're using. Talk handles dictation, while Fireflies transcribes your meeting recordings and uploaded files.

For one short file, Happy Scribe's 10-minute trial may be enough if you need a free audio to text converter. Otter gives you 300 transcription minutes each month, but its free plan only allows three lifetime file imports.

The limits become more noticeable when you're transcribing files regularly. That's when features like speaker labels and searchable transcripts become more useful.

Step-by-Step Methods to Convert Your Recordings

There are a few ways to transcribe audio, depending on whether you already have a recording or want to capture a conversation live. Here's how to handle each situation.

Method 1: Upload a File to an AI Transcription Tool (Recommended for Meetings)

If you already have a meeting or interview recording, one way to convert audio to text is to upload the file to Fireflies. Fireflies accepts MP3, M4A, WAV, MP4, and WEBM files.

1. Log in or create a free Fireflies account.
2. Click Capture in the top right and choose Upload audio or video (or open Uploads in the sidebar), then drag your file into the upload area or click Browse Files.
3. Choose the language spoken in the recording.
4. Click Upload and let Fireflies process the file.
5. Open the completed recording to see the transcript, speaker labels, AI summary, and action items.

Already have a recording to transcribe? Try uploading it with a free Fireflies account. Try it now →

Method 2: Use a Browser-Based Converter (For Quick One-Off Files)

For a single file, a browser-based audio to text converter gives you a simpler option. Happy Scribe is one example.

1. Go to Happy Scribe, click + Create, and select Transcript.
2. Upload the file from your computer or paste a public link.
3. Choose the language spoken in the recording and select Machine generated transcription.
4. Review the completed transcript and export it in your preferred format.

This works well when you mainly need the text from a file. If you're transcribing meetings or interviews regularly, keeping the recordings, transcripts, and summaries together becomes more useful.

Method 3: Transcribe a Live Meeting or Call Automatically

If your meeting hasn't started yet, you can transcribe it while you talk instead of uploading the recording later.

Fireflies connects to your Google or Outlook calendar and can join scheduled Google Meet, Zoom, and Microsoft Teams calls. You choose which meetings it joins. If a call is already underway, click Add to live meeting on your Fireflies dashboard, paste the meeting link, and click Start Capturing.

For specific setup instructions, see how to transcribe Google Meet, transcribe Zoom meetings, or transcribe Microsoft Teams.

MP3 to Text: How to Transcribe MP3 Files

MP3 is a common format for interviews, podcasts, and voice memos. Have an MP3 file? You can upload it directly to Fireflies and get a transcript.

How to Convert an MP3 File to Text

1. Log in to Fireflies.
2. Click Capture in the top right and choose Upload audio or video (or open Uploads in the sidebar).
3. Drag your MP3 file into the upload area or click Browse Files.
4. Choose the language spoken in the recording.
5. Click Upload to start the transcription.
6. Once it's ready, open and review the transcript.

Clear audio gives you a cleaner transcript. Fireflies delivers 99% transcription accuracy in English and 95% in more than 100 languages. Background noise, faint voices, and overlapping speech can affect the results. That's true of any transcription tool, so it's worth giving the finished transcript a quick review.

Audio Transcription for Professional Use Cases

The right audio transcription setup depends on what you're recording and what you plan to do with the transcript afterward. A meeting, research interview, and podcast may all start as audio files, but the work you do with the text can be quite different.

Meeting Recordings

A meeting transcript is more useful when you can see who said what and pull out the decisions and next steps. Fireflies handles meeting transcription along with speaker labels, AI summaries, action items, and CRM integrations for tools like HubSpot and Salesforce.

It can also generate a structured meeting summary from the conversation, so your team doesn't have to build one from the transcript afterward.

Research Interviews

When you're transcribing interviews, keeping track of who is speaking matters just as much as getting the words down. Fireflies can transcribe uploaded interview files and separate the speakers, while Trint is also worth considering when annotation and qualitative analysis are a bigger part of the project.

Podcast Episodes

Podcast transcripts can become show notes, articles, or searchable text for your website. You can upload an episode to Fireflies for transcription, but Descript may be a better fit if you need to change the audio itself. Its text-based editor lets you edit the recording by deleting or moving words directly in the transcript.

Voice Memos and Field Recordings

Not every important conversation happens in front of a laptop. Sales reps, consultants, and field teams can use the Fireflies mobile app to record an in-person conversation or voice note, then have the recording uploaded and processed in their Fireflies account. If you would rather dictate the note than record and transcribe it, Fireflies Talk types it directly into your notes app or CRM as you speak.

Fireflies can transcribe meeting recordings, interviews, and uploaded audio files. Upload an MP3, MP4, WAV, M4A, or WEBM file to get a transcript with speaker labels, an AI summary, and action items.

Try Fireflies free

How to Choose the Right Audio to Text Tool

A short voice memo and a weekly team meeting call for different tools. Here's what to use for each type of job.

Frequently Asked Questions

What is the most accurate audio to text converter?

Accuracy depends on the recording. Clear audio with distinct speakers is easier to transcribe than a noisy file where people talk over each other. Fireflies delivers 99% transcription accuracy in English and 95% in more than 100 languages.

How long does it take to transcribe an hour of audio?

AI tools can convert an hour of audio into text within minutes. Human transcription takes much longer. Rev, for example, currently advertises a turnaround time of about 12 hours for its human transcription service.

What audio formats can be transcribed?

Most transcription tools accept common formats such as MP3, MP4, WAV, and M4A. Fireflies supports all four, along with WEBM uploads. If you have a less common file type, check the tool's upload requirements before you start.

Is audio transcription free?

Yes, but free plans come with limits. Fireflies' Free plan gives you 3 free meetings and 800 mins of storage, and supports file uploads. Happy Scribe offers a 10-minute trial, while Otter's free plan includes 300 transcription minutes per month with three lifetime file imports.

You can also download and run the open-source version of Whisper on your own computer without paying API fees.

For dictation, Fireflies Talk is free and unlimited on every Fireflies plan. Dictations are stored on the user's device. Fireflies doesn't keep a copy, and no one else at Fireflies or in the user's workspace can see them. Dictations are never used to train models. Fireflies is SOC 2 Type II and GDPR compliant.

Start Converting Your Audio Files

A short, one-off recording doesn't need much. A free browser tool can get the job done.

Regular meetings and interviews are different. Fireflies keeps the transcript, speaker labels, AI summary, and searchable recordings together. It can also join future meetings automatically, so you don't have to upload the recording afterward.

Fireflies is SOC 2 Type II, GDPR, and HIPAA compliant, and ISO/IEC 42001 certified. HIPAA compliance is available on the Enterprise plan with a signed BAA and Private Storage.