Faster Case Review from the Field to the Courtroom 
Real-Time Transcription for Case Acceleration
Convert audio and video from interviews, 911 calls, and interrogations into searchable transcripts in minutes—not days.
End Tedious Manual Transcription
Reduce administrative burden by automating transcription, so investigators can spend more time in the field.
Improve Case Visibility
Enable detectives, attorneys, and analysts to quickly scan and reference evidence with keyword search and highlights.
Collaborate Across Teams
Share transcripts with prosecutors or internal teams to streamline workflows and maintain chain of custody.
Built to Handle Difficult Audio 
Optimized for Real-World Noise
From sirens to shouting to overlapping voices, Sonix is trained to transcribe under pressure—even in chaotic scenes.
Supports Every Device
Transcribe audio from dash cams, smartphones, body-worn cameras, radio logs, and in-room surveillance systems.
Deliver Clean, Court-Ready Documents
Produce readable, speaker-labeled, and time-stamped transcripts that hold up under evidentiary review.
Automated Redaction for Privacy and Compliance 
Click-to-Redact Sensitive Info
Redact names, locations, and other private details directly from the transcript—no audio editing software required.
Prepare Files for Public Release
Mute or remove specific phrases before sharing evidence or responding to FOIA requests.
Comply with Legal Standards
Ensure compliance with court rules, victim protections, and data privacy laws when releasing investigative media.
Searchable Transcripts for Smarter Investigations 
Instant Keyword Discovery
Jump directly to key terms or statements—perfect for scanning hours of interview audio or surveillance tapes.
Speaker Identification
Automatically label who’s speaking in interviews, witness statements, and interrogation videos for easy reference.
Tag and Highlight Evidence
Mark crucial moments in any transcript and organize them by case, location, or priority.
Scalable Transcription for Agencies of All Sizes 
Multi-User Access and Roles
Assign roles, manage permissions, and create shared folders for multi-department collaboration.
Bulk Uploads and Batch Processing
Upload dozens of files at once—great for large-scale cases or backlog reduction.
Flexible for Any Unit
Whether you’re a local precinct or a federal task force, Sonix fits seamlessly into your investigative workflow.
Frequently Asked Questions 
Can Sonix transcribe bodycam and dashcam recordings?
Yes. Sonix is optimized for field recordings like bodycam and dashcam audio, even with background noise like traffic, wind, and overlapping voices.
Is Sonix accurate with poor audio quality?
Absolutely. Sonix is consistently rated the most accurate automated transcription software, even with difficult audio or multiple speakers.
Can Sonix help with redacting sensitive information?
Yes. Sonix lets you click-to-redact any word or phrase from the transcript, making it easy to prepare files for court or public release.
Do investigators need to install anything?
No. Sonix is cloud-based and runs in your browser. Upload files and get transcripts in minutes—no software to install, ever.
Is Sonix secure for handling police and investigative data?
Yes. Sonix is fully SOC 2 Type II compliant and uses encryption in transit and at rest to protect sensitive case data.
Can I use Sonix for FOIA response prep?
Yes. With automated redaction and batch export tools, Sonix simplifies the process of preparing transcripts for Freedom of Information Act responses.
Does Sonix support multi-agency collaboration?
Absolutely. You can invite other departments or agencies to collaborate on specific folders or case files with access controls.
What formats does Sonix support for export?
Transcripts can be exported to DOCX, TXT, PDF, SRT, and more—ideal for both case documentation and video subtitling.
Ready to Modernize Your Investigative Workflow?
Join leading investigative teams, police departments, and legal analysts using Sonix to streamline evidence transcription.
Contact our Legal Sales TeamAI transcription for investigators, detectives, and police 
Handle your media backlog with fast, accurate transcripts
Sonix helps law enforcement agencies and investigators transcribe vast volumes of audio and video content quickly and accurately. From suspect interviews to 911 calls, our AI transcription software turns spoken word into structured, searchable text within minutes.
Use Sonix to transcribe:
- Bodycam footage
- Dashcam recordings
- Interrogations and suspect interviews
- 911 calls and dispatch audio
- Surveillance and sting operations
- Jail phone calls
- Forensic audio
- Public complaints and statements
- Internal affairs investigations
- Court exhibit preparation
Sonix is the preferred transcription solution for modern investigators who need to move fast, stay compliant, and maintain evidentiary integrity.
Still have questions? Talk to one of our legal experts →
