AI Audio & Video Transcriber
Convert audio, video, podcasts, and recordings into accurate text transcripts and timestamped SRT/VTT subtitles with speaker detection.
Upload Media
Max 20 Mins · 30 MBTranscription Studio
Upload an audio or video file on the left and click "Start Transcribing Audio" to generate real-time subtitles and transcripts.
How to Transcribe Audio or Video in 3 Steps
Convert your recordings, podcasts, YouTube videos, and lectures into accurate timestamped subtitles in seconds.
Upload Audio or Video
Drag and drop any audio or video file up to 30 MB (MP3, WAV, MP4, M4A, WEBM, MOV, FLAC) or test instantly with one of our sample clips.
Automatic AI Speech Recognition
Our multimodal neural engine filters background noise, detects spoken languages automatically, and separates speakers with millisecond timestamps.
Export Subtitles & Transcripts
Preview with the synchronized audio scrubber and export in standard .SRT (YouTube / Premiere Pro), .VTT (Web Video), or clean .TXT with 1 click.
Frequently Asked Questions
Everything you need to know about NexusTTS AI Audio & Video Transcription.
Is NexusTTS AI Audio Transcriber really 100% free with no credit card required?
Yes! NexusTTS AI Audio & Video Transcriber is 100% free forever with no credit card, no sign-up, and no hidden subscriptions required. You can transcribe up to 20 minutes of audio or video per file with unlimited daily sessions.
What file formats and sizes are supported?
We support all major audio and video formats including MP3, WAV, MP4, M4A, AAC, MOV, WEBM, FLAC, and OGG up to 30 MB in file size.
Can I download .SRT subtitle files for YouTube and Premiere Pro?
Yes! With one click you can export your transcript as standard .SRT subtitle files, .VTT files for web video players, or .TXT plain text transcripts, formatted and ready for YouTube, Adobe Premiere Pro, DaVinci Resolve, and CapCut.
How accurate is the transcription for Hindi and Indian languages?
NexusTTS utilizes state-of-the-art multimodal Neural ASR engines with 99.8% speech accuracy across Hindi, Hinglish, Bengali, Tamil, Telugu, Marathi, Urdu, English, and 90+ other global languages.
Does this tool automatically detect different speakers in podcasts or meetings?
Yes, our engine features automatic multi-speaker diarization. It labels turns between Speaker 1, Speaker 2, etc., and provides separate timestamped dialogue cards for each speaker.
What is the maximum audio or video duration allowed?
You can transcribe files up to 20 minutes in duration in a single session. For longer recordings, simply divide the audio into 20-minute segments.