M4A · AI Document Translation
Supports translation of PDF, Word, PPT, EPUB and other documents, covering 100+ languages. Preserves original formatting, preview partial translation and pricing first, then decide whether to translate the full text.
Translation and Document Processing
"Preview part of the document before translating the complete file. The preview range depends on the document and your available account credits. If the preview requires credits, the task page will display the cost before you proceed. Layout preservation depends on the file, fonts, and text length. Complex tables, scanned pages, and text in images may require manual review. Please check the partial preview before translating the complete document."
Understand Content, Preserve Usable Document Structure
Comprehensive Mobile Format Compatibility
Native support for M4A container (including AAC and ALAC codecs), thoroughly solving the problem of being unable to process phone recordings after export.
Highly Accurate Transcription
Based on top-tier AI models such as Whisper, it possesses exceptional recognition capabilities for colloquial speech, interjections, and pauses, authentically restoring context.
Subtitle and Text Export
Choose from flexible export formats. SRT subtitles are suitable for video production, TXT/Word documents are suitable for note organization.
Intelligent Sentence Segmentation and Punctuation
AI will automatically add punctuation and segment paragraphs reasonably based on semantics, generating smooth and readable text that requires minimal post-editing.
Ultra-Fast Multilingual Translation
Supports translation between 80+ languages. Upload English audio, download Chinese documents, and achieve borderless communication.
Batch Task Processing
Supports batch upload of multiple M4A files with automatic parallel processing in the background, significantly improving processing efficiency.
Why does format matter?
- Precise formatting is the hallmark of professionalism.
- Reduce secondary formatting time.
- Ensure accurate and precise information delivery.
Core translation scenarios
Reliably meeting every translation scenario
iPhone Audio Transcription
Directly upload files exported from iPhone Voice Memos to quickly convert inspiration, meetings, or classroom content into text.
Lecture Notes for International Students
Transcribe recordings of foreign language professors' lectures and generate bilingual Chinese-English text to help you easily review key points without missing any content.
Media Interview Transcription
A powerful tool for journalists. Quickly transcribe M4A interview recordings into manuscripts, dramatically reducing writing time.
Translation FAQs
Preview part of your document before translating the full file. The preview range depends on the document and your available account allowance. If a preview requires credits, the task page shows the cost before you continue.
Translation is billed in credits based on Tokens, a document analysis fee, and the selected mode. OCR and higher-tier models can change the cost. Check the task quote before confirming payment.
Unpaid documents are automatically deleted 15 days after task creation, and paid documents after 30 days. Download and back up your original and translated files before the retention period ends. You can also delete a task from your translation history.
Translate PDF, Word, PowerPoint, Excel, EPUB and other supported formats, with files up to 1GB. Check the full format list for the document you want to translate.
Translate between 100+ languages. See the available languages and choose your target language on the document translation page.
Yes. OCR reads text from scanned PDFs and images for translation. Recognition depends on scan quality and layout; use enhanced recognition for difficult pages and check the preview for missing or misread text.
Choose a standard or higher-tier model to suit your document. Check terminology, tone, and layout in a partial preview, then choose a mode for the full translation based on your needs and the quote. Any preview credits are shown on the task page.
Your document is processed to provide the translation, including by the selected third-party AI provider. Review our privacy policy for details about processing and retention.
Preview and Quote First
Preview part of your document before translating the full file. The preview range depends on the document and your available account allowance. If a preview requires credits, the task page shows the cost before you continue.
Upload to preview