Voice Forensics, what can be achieved!

In today’s time, recording & interpreting a voiceprint in terms of the frequencies and intensities of the sounds made by an individual while speaking is vital, mainly for criminal investigations and military intelligence purposes. Every individual’s voice is distinct because the structure or composition of the vocal cords, vocal cavity, oral and nasal openings are specific to each.

Voice Forensics – What is it?

Analysis of Voice Forensics is the science of evaluating, filtering, and validating audio recordings for the objective of a hearing or trial. Moreover, to investigate further on the above-mentioned, one requires to have an effective voice biometrics program. An approach that evaluates audio evidence precisely by applying voice biometrics technology in a way that makes it convenient to work with the obtained audio evidence. This would further help forensics experts as well as security-based companies to finalize voice treatment and speaker identification practices accurately.

How does it help the investigation agencies?

Audio forensics tools utilize voice biometrics technology to examine voice and help forensics experts towards their crime prevention and investigation efforts.
By utilizing these tools, forensics experts would be able to:
• Ascertain whether a voice belongs to a specific individual.
• Run a trial to check if a recording has been edited or altered.
• Make a comparison of a target speaker with a database of potential candidates.
• Precisely match a person’s identity with the audio evidence content.
• Verify a person’s identity with an audio recording.

Know more: Significance of Vocal Profile Analysis (VPA) from Sunartek

Sunartek’s (VPA) Vocal Profile Analysis based on speech analytics system is primarily intended to be used by law enforcement, public safety, investigation, and forensic experts. Whether it is the analysis of massive amounts of audio recordings for investigation purposes or just a few audio tracks for forensic experts, the platform can handle almost any speech-processing challenge. The system uses Voice Biometrics Technology to quickly search and accurately identify language, speakers, and keywords within large amounts of audio recordings making it ideal for intelligence and law enforcement agencies. What’s more? VPA possesses the ability to evaluate audio files for speech/non-speech detections as well.

Key Advantages & Beneficial Features

• Keyword spotting
• Gender detection
• Emotion detection capability
• Age detection.
• Constructed on a client-server model/architecture use of standard hardware.
• Multi-parallel processing supported.
• Speaker Identification in signal through analysis from a known database of speaker voice samples.
• Multiple language recognition from a known database of languages.
• Implementation of standard software to be able to participate in additional development.
• Scalability and compatible interfaces for the addition of classifiers.
• Communication via TCP/IP.


• Language Identifier
• Speech Detection Module

The bottom line is that going forward, voice identification will remain to be an essential part of the litigation procedure whenever audio evidence is involved. The more experienced the expert, the more reliable the expert’s report.
This proficiency of Sunartek’s Voice Biometrics Technology helps to safeguard Law enforcement agencies, corporate offices, and other government institutes to fight crimes. Also, the VPA tool can be used as a standalone method of authentication or can be integrated with other interception solutions that include information an individual is aware of (for example, a password) or information in relation to the individual’s call (for instance, ANI verification or geo-location).

So, take advantage of Sunartek’s valuable, reliable, and compliant Voice Biometrics Technology and gain real-time insights that harmonize your requirements.