How to Transcribe Audio
Transcribing audio to text with our AI tool takes three steps. No software installation, no account creation — everything runs in your browser.
Upload Your Audio
Drag and drop your audio file or click to browse. Supports MP3, WAV, FLAC, OGG, M4A, AAC, WMA, and video files up to 100 MB.
Choose Settings
Select your output format (TXT, SRT, or VTT), pick the language or use auto-detect, and choose Fast or Best quality mode.
Get Your Transcript
The AI processes your audio and delivers a text transcript you can preview, copy, or download. Processing takes roughly 1 minute per 5 minutes of audio.
The entire process happens on our servers — your browser uploads the file, the AI transcribes it, and you get the result back. No local processing power is needed, so it works on any device including phones and tablets.
Supported Audio Formats
Our transcription tool accepts all major audio formats. Here is what each format is and when you are likely to encounter it.
MP3
CompressedThe most common audio format. MP3 files are compact and widely used for music, podcasts, voice recordings, and downloaded audio. Most phone voice recorder apps export MP3 by default. Excellent compatibility with the transcription engine.
WAV
LosslessUncompressed audio format used in professional recording. WAV files are large but preserve every detail of the original recording. Common output from audio interfaces, DAWs, and professional dictation equipment. Best audio quality for transcription accuracy.
FLAC
LosslessLossless compressed format — same quality as WAV but roughly half the file size. Used by audiophiles and for archival recordings. FLAC files provide excellent transcription accuracy because no audio data is discarded during compression.
OGG
CompressedOpen-source compressed audio format (usually Vorbis codec). Common in gaming, open-source software, and some voice recording apps. Similar quality to MP3 at the same bitrate. Fully supported by the transcription engine.
M4A
Apple AudioApple's default audio format using AAC compression. iPhones, iPads, and Macs produce M4A files from the Voice Memos app, screen recordings, and other built-in tools. Slightly better quality than MP3 at the same file size.
AAC
CompressedAdvanced Audio Coding — the codec inside M4A containers. Also used standalone in streaming services, video conferencing recordings, and some Android voice recorders. Better compression efficiency than MP3, excellent transcription results.
WMA
CompressedWindows Media Audio format from Microsoft. Found in older Windows voice recordings, dictation software, and legacy audio archives. Less common today but still supported. If you have WMA files from older Windows dictation tools, they will transcribe without conversion.
Video files too: You can also upload video files (MP4, MKV, AVI, MOV, WebM) directly. The tool automatically extracts the audio track and transcribes the speech — no need to convert video to audio first.
Transcription Accuracy
AI transcription is not perfect — no automated tool is. Understanding what affects accuracy helps you get the best results and set realistic expectations for your transcript.
Typical accuracy ranges from 85% to 95% word-for-word, depending on the following factors:
- Audio quality. This is the single biggest factor. A recording made with a decent microphone in a quiet room will transcribe near-perfectly. A recording from a phone placed on a table during a noisy meeting will have significantly more errors. The cleaner the audio signal reaching the AI, the better the output.
- Background noise. Music, traffic, air conditioning hum, keyboard typing, and other ambient sounds compete with speech for the AI's attention. Constant low-level background noise (like a fan) is handled reasonably well. Intermittent loud sounds (doors slamming, phones ringing) cause more errors because the AI may misinterpret the noise as speech or miss words that overlap with the noise.
- Number of speakers. A single speaker is the easiest case for AI transcription. When multiple people talk — especially if they interrupt or overlap — accuracy drops. The AI does not currently separate speakers by identity (no speaker diarization), so all speech is transcribed as a single continuous stream.
- Accents and speech patterns. The Whisper AI model is trained on a diverse dataset covering many English accents (American, British, Australian, Indian, etc.) and many languages. However, very strong regional accents, fast speech, mumbling, or heavy use of slang and jargon will reduce accuracy compared to clear, standard pronunciation.
- Technical vocabulary. Domain-specific terms — medical terminology, legal jargon, brand names, acronyms — may be transcribed phonetically rather than correctly if they were not well-represented in the training data. You may need to manually correct specialized terms in the output.
- Recording distance. A clip-on lapel microphone captures speech much more clearly than a phone sitting across the room. The further the speaker is from the microphone, the lower the signal-to-noise ratio, and the more the AI has to guess at unclear words.
Use Cases for Audio Transcription
Audio transcription saves hours of manual typing. Here are the most common scenarios where converting audio to text provides real value.
- Meeting recordings. Record your team meetings (Zoom, Teams, Google Meet) and transcribe them afterward. A text transcript is searchable, skimmable, and easy to share with people who missed the meeting. Extract action items and decisions without re-listening to the full recording.
- Lectures and classes. Students can record lectures and generate transcripts for study notes. A transcript lets you search for specific topics, highlight key concepts, and review material at your own pace instead of replaying a 90-minute recording to find one explanation.
- Voice memos and brainstorming. Many people think faster than they type. Record your ideas as voice memos, then transcribe them into text you can organize, edit, and share. Particularly useful for writers, content creators, and anyone who captures ideas on the go.
- Phone calls and customer support. Transcribe recorded phone conversations for compliance records, quality assurance, or personal reference. Call center teams use transcription to analyze customer interactions, identify common questions, and train support agents.
- Dictation and writing. Dictate articles, reports, emails, or creative writing into a voice recorder, then transcribe the audio into editable text. Faster than typing for many people, especially for first drafts where speed matters more than perfection.
- Podcast and video content. Transcribe podcast episodes or video soundtracks to create show notes, blog posts, or searchable archives. Transcripts also improve SEO for audio and video content by giving search engines text to index.
Fast vs Best Quality Mode
The tool offers two transcription quality modes, each using a different version of the OpenAI Whisper AI model. Understanding the difference helps you choose the right mode for your recording.
Fast Mode (Whisper base)
Uses the Whisper base model with 74 million parameters. Processes audio quickly — roughly 1 minute per 5 minutes of recording. Best for:
- Clear, high-quality recordings with one speaker
- Quick drafts where you will edit the transcript
- Long recordings where processing time matters
- Standard accents in well-recorded environments
Best Quality Mode (Whisper small)
Uses the Whisper small model with 244 million parameters — over 3x larger. Takes 2–5x longer to process but produces noticeably better results:
- Better punctuation and sentence boundaries
- Fewer errors on accented speech and fast talkers
- Improved handling of background noise
- More accurate for non-English languages
As a general rule: use Fast mode when your audio is clean and clear, and switch to Best quality when dealing with challenging recordings — noisy environments, multiple speakers, accents, or non-English languages. If you are unsure, try Fast mode first. If the result has too many errors, re-run with Best quality.
Both modes support 99 languages with automatic language detection. You do not need to tell the tool what language is being spoken — the AI identifies it from the audio. You can also manually select the language if auto-detect makes an incorrect choice.