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Access control often uses voice biometrics as an authentication method. Flight recorders provide unique information that can reveal the cause of aviation incidences. Engine monitoring may ensure in-time maintenance.
In contrast to fingerprints, sound does not leave a direct trace. Sound always travels through an acoustic path and then eventually gets recorded.
Microphones are key to security
Audio forensics is based on various techniques and tools that can analyze, authenticate and sometimes even enhance audio recordings. But the entire process works best if one – or more – microphones first capture useable audio evidence – clear sound.
The quality of the evidence depends on the audio quality capture, and the quality of the equipment used. In many cases, the recording may be subject to signal processing for noise reduction, voice clarity, speaker recognition or verification. The best result is achieved when a high-quality signal is obtained from the beginning and kept throughout the process.
The microphone is the first component in the audio chain – and the most important one. It is essential to capture the true audio at the source instead of relying on cleaning up unclear sound later in the process. DPA Microphones has a long history as a microphone provider for security and law enforcement solutions. Choose DPA Microphones for your security solutions when the keywords are reliability and accuracy.
