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Originally answered by Ed Primeau:
Voice print identification is an process used to compare a known voice to an unknown voice. Voice prints allow the forensic expert to determine the characteristics of the frequencies present in a persons voice through visual inspection. A voice print displays frequencies prominent in the voice measured.
The process of voice print identification includes reviewing the frequencies displayed in a known speaker voice print and comparing them to an unknown speaker voice print. This process was developed to better understand if a known persons voice matches the unknown persons voice.
A sonogram is a frequency measurement tool that can be used to create a voice print. Several years ago, voice print analysis evolved into voice identification. Voice identification uses a voice print identification and was complimented with crital listening and electronic measurement. Many software programs are available today for voice identification that accomidate all three processes.
Everyone has very distinct features to their voices, regardless of how slight or severe they might be. Physical characteristics that contribute to speech is the mouth, teeth, larnyx, vocal chords and throat to name a few.
When compiling information for a voice identification the forensic expert must critically listen over and over to the unknown voice taking scrupulous notes of all speech characteristics. This is called the critical listening phase. Experts focus on characteristics such as inflection, pronunciation of certain words, any form of an accent, stutters, and lisps, amongst other variables.
Think about a voice you know and are familiar with like afellow employee. You can have your back to the door and when they walk in and say hello, you know who they are without looking. This is the type of familiarity that has to be achieved during voice identification testing of the unknown voice as well as the known voice.
Experts also review the visual appearance of a voice which is the purpose of a voice print. They also measure the electric signals of each frequency present in a voice using spectrum measurement tools.
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Do people have any other unique identifying factors other than fingerprints?
Yes, people also have unique DNA profiles that can be used for identification purposes. Additionally, traits such as facial features, eye color, and body markings can be unique to individuals and can help in identification.
How could you print out a sine wave of your voice on a laser printer?
The voice is not a sine wave.
What are the other methods of personal identification?
Some other methods of personal identification include fingerprint recognition, iris or retina scanning, voice recognition, and facial recognition. Some newer technologies also include palm print recognition, vein recognition, and even DNA-based identification.
Can a nose print of a cow be used to determine identity?
Yes, nose printing of a cow can be used to determine identity. A cows nose print is just like a human finger print. This type of identification is effective because a cow's nose will never change and that makes nose printing unlike other forms of identification.
What did Alphonse Bertillon do?
Alphonse Bertillon created anthropometry- which is the measuring of an individual for the purposes of understanding physical variation. He brought to light ear identification and ear print identification in 1879.
What rhymes with footprints?
voice print, blueprint, prince, offprint, imprint
What are some common biometric identification techniques?
Some common biometric identification techniques include fingerprint scanning, facial recognition, iris scanning, and voice recognition. These techniques are used to verify a person's identity based on their unique physical or behavioral characteristics.
What is the difference between radial and ulnar loops?
Why are you posting a question to do with finger print identification in several computer programming wikies.
What is an finger print?
A fingerprint is an unique pattern of ridges and valleys on the skin of a human finger. These patterns are used for identification purposes as they are specific to each individual and remain unchanged throughout a person's life.
First country to use finger print identification?
Argentina was the first country to use fingerprint identification for law enforcement purposes in 1892. Juan Vucetich, an Argentine police official, introduced the fingerprint system as a method for identifying criminals.
What defines a true identity of a person?
identity can be defined by the government as a persons social security number as well as dna identification, finger print identification. in another sense identity can be who one is as a person personality wise.
How can a person be identified by their voices?
A person can be identified by their voice through the unique combination of tone, pitch, accent, and speech patterns that are specific to them. Voice recognition technology can analyze these characteristics to create a voice profile that can be used for identification purposes.
