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转录长音频文件。 最长10小时。无超时。

大多数工具在超过2小时或500MB后静默失败。我们的流水线将长文件拆分为并行处理通道，重新组装并对齐时间戳，最终生成一份连贯的转录文本——说话人标记完整保留。Pro和Business计划每文件最长均可接受10小时。Business计划提供更高的大小上限（2GB vs 500MB）和优先队列。

Drop a file, or pick one

MP3 · WAV · M4A · MP4 · MOV · MKV · OGG · OPUS · FLAC · WEBM — up to 100 MB anonymously

Paste a link, we’ll fetch the audio

YouTube · TikTok · Vimeo · Twitter · SoundCloud · Spotify · 50+ more

Record straight from your browser

Sign up takes 30 seconds — recording opens right after, in the dashboard.

No card required~90s per 60-min fileSRT · VTT · DOCX · TXTFiles auto-deleted in 24h

↓ Watch what happens

Audio in. Transcript out.

Drop a file, paste a URL, or record live — text appears back with speaker labels and timestamps. Same pipeline whether the source is a file, a URL, or your microphone.

Microphone · liveREC 00:07.41
en-US auto-detected16 kHz mono
~90s
Transcript · streaming2 speakers · 47:08
S1

Thanks for making the time. I want to start with framing — what was the original hypothesis behind the project?

S2

Honestly, maybe forty percent. The shape held — the mechanics underneath had to be rebuilt almost entirely.

S1

What flipped it for you? Was there one customer call, one piece of data

~95% accuracy on clean audioSRT · DOCX · TXT · JSON

↓ This is the dashboard

This is what loads when the job finishes.

Same layout as the real dashboard — Summary, full Transcript, Speakers tab, Exports. Key points and action items extracted automatically. Auto-tags on every job.

Try it on your own file — it's free

Three real options · honest comparison

Built-in dictation, AI speech-to-text, or a human transcriber.

Three legitimate ways to get text from spoken audio in 2026. Each is best for different work. Honest numbers below — no claim that AI matches a professional human transcriber on hard audio.

Option 01

Built-in dictation

Live, free, on-device. Handy for short bursts while you talk.

Accuracy · clear English~85%
Speaker separationNo
TimestampsNo
Languages~30
60-min fileLive only
CostFree
Best forShort voice notes while you walk. Hands-free messaging. Dictating an email at a stoplight.
Option 02

AI speech-to-text

~30× faster than realtime. 100+ languages. Speaker labels. The sweet spot for most work.

Accuracy · clear English95%+
Speaker separationYes (Pro+)
TimestampsPer sentence
Languages100+ auto
60-min file~90 s
Cost · per min$0.03
Best forInterview recordings · meeting notes · podcast transcripts · YouTube subtitles · batch jobs · API automation · field journalism.
Option 03

Human transcriber

Gold-standard accuracy when the audio is hard or the stakes are legal.

Accuracy · clear English98–99%
Speaker separationManual
TimestampsPer turn
LanguagesPer transcriber
60-min file4–8 hours
Cost · per min$1–3
Best forLegal depositions · medical dictation · archival oral history · anything where 95%+ accuracy is non-negotiable.

Built-in dictation figures from public iOS / Android speech API benchmarks. Human transcriber rates from US/UK industry surveys 2024–2025.

Accuracy · real-world numbers

95%+ on clear English. It holds up on real-world recordings too.

Modern transcription reaches 95%+ word accuracy on clear English at 128 kbps and above, comparable to a human transcriber on the same recording. The audio coming in sets the ceiling — cleaner source, cleaner transcript. The breakdown below covers the recordings we actually see in production.

97%+
Clean studio audio

USB or studio microphone in a treated room. Single speaker at conversational distance. The headline number.

95%+
Clear English at 128 kbps+

Podcast masters, interview recordings, well-mic'd meetings. The sweet spot for most professional work.

93%
Real-world podcast

Field-recorded interviews, podcast episodes at 64–128 kbps, multi-speaker recordings. Usable for editorial without a review pass.

91%
Meeting room recording

Ceiling mic, omnidirectional capture, mild reverb, multiple speakers at distance. Plan a rename pass on the speaker chips.

Common questions

7 things people ask about this.

01最大文件大小和长度是多少？+
Business计划：每个文件2GB，每段录音最长10小时。Pro计划：每个文件500MB，每段录音最长10小时。免费计划：每个文件100MB，每段录音最长30分钟，每月总计30分钟。所有计划支持相同的格式集：MP3、WAV、M4A、FLAC、OGG、MP4、MOV、WEBM、MKV。
02在上传或处理过程中录音会超时吗？+
不会。超过500MB的文件通过预签名URL直接上传到存储——请求永远不会在浏览器标签页中超时。处理使用持久化作业队列：即使您关闭浏览器，作业也会继续，当转录文本准备好时您会收到电子邮件通知。
03上传前我需要拆分文件吗？+
不需要。流水线在内部将文件拆分为重叠块，并行处理，然后重新组装成带有对齐时间戳的单个输出。只有在文件超过计划限制时才需要手动分块。
04说话人日志记录在10小时的文件上有效吗？+
有效。说话人日志记录在全部块完成后对整个文件运行，而非独立地在每个块上运行。这意味着第1小时的SPEAKER_01与第9小时的SPEAKER_01是同一个人。在受控音频中，漂移通常低于每小时一次错误归属。
05处理我的文件有多快？+
大约为实时的4倍——因此一个4小时的录音大约需要60分钟。非常大的文件（>6小时）在高峰时段可能会排在其它作业之后；非高峰时段处理始终更快。
06我可以通过API批量上传多个长文件吗？+
可以。将每个文件作为独立作业POST到/api/v1/jobs，并指定一个webhook URL。作业并行处理（受计划并发限制）。Business计划最多运行50个并发作业；Pro计划最多20个。超过活动上限的提交将处于“pending”状态，并在有空位时自动提升——您不会在提交时受到速率限制。
07升级前有免费测试的方法吗？+
有——免费版每月提供30分钟，无需信用卡。使用您的长录音中具有代表性的30分钟片段来测试准确率，然后再决定是否升级到付费计划。

Drop something in. See what comes out.

上传最长2GB、10小时的音频。无需分块、无超时，全程说话人标记。

开始免费转录