Feature · 100+ languages · 95%+ accuracy

Audio to text. Fast, accurate, in 100+ languages.

Drop an audio file in your browser and get a clean transcript with optional speaker labels and AI summary, usually faster than realtime. No app to install.

95%+accuracy on clean audio
100+languages auto-detected
24hauto-delete of sources
In one paragraph

Audio-to-text conversion (also called speech-to-text or transcription) turns recorded human speech into searchable, editable text. Transcription.Solutions does this in your browser: upload an MP3, WAV, M4A, OGG, FLAC, or OPUS file, and within minutes you receive a transcript with speaker turns, optional AI summary, and exports in TXT, SRT, VTT, or DOCX. The source audio is permanently deleted from our infrastructure within 24 hours of completion.

Workflow

How it works

Three steps from file to text. No queueing UI, no per-step prompts — paste or drag, walk away, come back to a finished transcript.

01

Upload your audio file

Drag a file into the browser or paste a public URL. Supported: MP3, WAV, M4A, OGG, FLAC, OPUS, WEBM. Up to 4 hours per file on Business; 60 minutes on Pro.

02

Automatic processing

We split long audio into chunks, run speaker diarization on Pro and Business plans, and assemble the final transcript with speaker labels. Language is auto-detected; you can also force a specific language if needed.

03

Edit, export, share

Read the transcript inline, copy individual speaker turns, run an AI summary, or export to TXT, SRT, VTT, or DOCX. Source audio is deleted within 24 hours; the transcript stays in your account until you delete it.

Output

What you get

01

Clean, punctuated text

Sentence boundaries, capitalisation, and punctuation are inserted automatically. Filler words (um, uh) are kept by default and can be filtered out on export.

02

Speaker labels

Two or more voices are separated and labelled (Speaker 1, Speaker 2). Available on Pro and Business plans. Manual rename per speaker.

03

AI summary

On Pro and Business plans we generate key points, decisions, and action items from the transcript. Useful for meeting recaps and interview prep.

04

Timestamped subtitle export

Export SRT or VTT for video subtitles, plus a clean DOCX for reports and a plain TXT for downstream tooling.

05

Searchable transcript

Every transcript is full-text searchable inside your account. Find a quote across hundreds of files in seconds.

06

REST API + webhooks

Available on Pro and Business plans (and on Free for evaluation, see /docs/api). Per-key rate limits, signed webhook callbacks, JWT auth.

File formats

Common audio file types we transcribe

All formats below are accepted directly — no need to convert before upload. Maximum file size depends on plan: 100 MB on Free, 500 MB on Pro, 2 GB on Business.

01

MP3

The most common audio format on the web. Compressed, small files, supported everywhere. We accept any MP3 bitrate from 32 kbps to 320 kbps.

02

WAV

Uncompressed studio-quality audio. Often used for podcast masters and field recordings before publishing. Files are larger but transcription quality is identical to MP3.

03

M4A / AAC

Apple's default voice memo format and the audio track of MP4 video. Common on iPhone, iPad, and Mac. Works without conversion.

04

OGG / OPUS

Open-format containers used by WhatsApp voice notes, Telegram audio messages, and modern web recorders. We accept both.

05

FLAC

Lossless compression, popular for archival and audiophile recordings. Slightly slower upload due to file size; transcription accuracy is identical to lower-bitrate formats.

06

WEBM

Browser-recorded audio (e.g. from our own in-app recorder, Google Meet exports). Direct upload, no re-encoding required.

Coverage

Languages supported

100+ languages with automatic detection. The user interface is English-only; transcripts are returned in the original spoken language. Mixed-language audio (e.g. Spanish-English code-switching) typically transcribes well in the dominant language but can split. Force a specific language in advanced settings if auto-detect picks the wrong one.

01

European

English (US/UK), Spanish, German, French, Italian, Portuguese (BR/PT), Dutch, Polish, Russian, Ukrainian, Turkish, Greek, Czech, Swedish, Norwegian, Danish, Finnish, Hungarian, Romanian.

02

Asian

Mandarin Chinese, Cantonese, Japanese, Korean, Hindi, Bengali, Tamil, Telugu, Marathi, Thai, Vietnamese, Indonesian, Malay, Filipino/Tagalog, Urdu.

03

Middle Eastern & African

Arabic (multiple dialects), Hebrew, Persian/Farsi, Pashto, Swahili, Amharic, Afrikaans, Yoruba, Igbo, Hausa.

04

Less-common

Welsh, Catalan, Basque, Galician, Esperanto, Latvian, Lithuanian, Estonian, Slovenian, Slovak, Serbian, Croatian, Bulgarian, Macedonian, Albanian, Maltese, Icelandic.

Quality

Accuracy: what to expect

On clear audio with one or two speakers, accuracy reaches 95%+ in most major languages. Quality drops with background noise, heavy accents, overlapping speech, or low-bitrate phone-call audio. The transcript is a starting point — for legal or medical use, expect to do a human pass.

01

Best case (95%+)

Studio-quality audio, single or two clear speakers, no background music, common languages (English, Spanish, French, German, Mandarin).

02

Typical case (~90%)

Conference calls, podcast interviews, meeting recordings with mid-quality microphones. Some words misheard, mostly trivial to fix on a single read.

03

Hard case (~80%)

Phone calls (8 kHz audio), heavy accents, overlapping speakers, background noise, less-common languages. Speaker diarization may merge or split voices.

04

Edge case

Music, songs with vocals, multi-speaker debates with crosstalk, or audio recorded at very low volume. Output may need significant cleanup.

FAQ

Frequently asked questions

The answers we give to the same questions every week. Anything missing? Email support@transcription.solutions.

01What audio file formats are supported for transcription?

MP3, WAV, M4A, OGG, FLAC, OPUS, and WEBM. Maximum file size is 100 MB on Free, 500 MB on Pro, and 2 GB on Business. Maximum file duration is 30 minutes on Free, 60 minutes on Pro, and 4 hours on Business.

02How accurate is audio-to-text transcription?

On clear audio with one or two speakers, accuracy reaches 95%+ in most major languages. Quality drops with background noise, heavy accents, overlapping speech, or low-bitrate phone audio. For legal or medical work, plan a human review pass.

03How long does it take to transcribe an audio file?

Usually faster than realtime. A 30-minute meeting typically completes in 3-5 minutes, a 1-hour podcast in 6-10 minutes. Long files are split into chunks and processed in parallel.

04Are speaker labels (diarization) included?

Yes, on Pro ($19/month) and Business ($49/month) plans. Two or more voices are separated and labelled Speaker 1, Speaker 2, etc. You can rename each speaker after the fact.

05Can I transcribe audio in a language other than English?

Yes — 100+ languages with automatic detection, including Spanish, French, German, Portuguese, Mandarin, Japanese, Hindi, Arabic, and many less-common languages. The user interface is English-only; transcripts are returned in the original spoken language.

06Is my audio data private?

Source audio is permanently deleted from our infrastructure within 24 hours after transcription completes. Transcripts and summaries stay in your account until you delete them. We do not train models on your data; the upstream speech-to-text provider operates under no-training paid endpoints.

07Can I get an audio-to-text API?

Yes. REST API with webhooks, JWT authentication, and per-key rate limits. Available on Pro, Business, and Free for evaluation. See /docs/api for endpoint reference.

08What export formats are available?

Plain text (TXT), subtitle formats (SRT and VTT for video), and Microsoft Word (DOCX) for reports. All formats include or omit timestamps based on your selection.

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