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Thread: Forensic Voice Comparison

  1. #1 Forensic Voice Comparison 
    Forum Ph.D. stander-j's Avatar
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    I think my question about FVC is a two-part question the first question, which feels almost silly to ask as the name implies the answer, is: can two similar sounding voices be told apart regardless of the type of samples acquired? For this question I am specifically wondering about whether or not you can definitely confirm two voice samples that are recorded, an example being two voicemails.

    My second question is about vibration patterns. As I've come to understand, the vibrations created by the vocal folds in our throats can be used to identify a vibration pattern. What I can't seem to find out is whether these vibration patterns are unique or not. For instance, if I were to be saying this outloud, would the vibration pattern be a representation of the words I say, or a unique pattern of my vocal folds in general - like how we all have unique fingerprints? I suppose I have a third question: If these vibration patterns were unique like fingerprints, does anyone know how unique they are? Would we be talking: tell the difference between two houseflies, or the tell the difference between two cars?

    Anyway, if someone out there knows this one it would be great to finally find out! Thanks.


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  3. #2  
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    Quote Originally Posted by stander-j View Post
    I think my question about FVC is a two-part question the first question, which feels almost silly to ask as the name implies the answer, is: can two similar sounding voices be told apart regardless of the type of samples acquired? For this question I am specifically wondering about whether or not you can definitely confirm two voice samples that are recorded, an example being two voicemails.

    My second question is about vibration patterns. As I've come to understand, the vibrations created by the vocal folds in our throats can be used to identify a vibration pattern. What I can't seem to find out is whether these vibration patterns are unique or not. For instance, if I were to be saying this outloud, would the vibration pattern be a representation of the words I say, or a unique pattern of my vocal folds in general - like how we all have unique fingerprints? I suppose I have a third question: If these vibration patterns were unique like fingerprints, does anyone know how unique they are? Would we be talking: tell the difference between two houseflies, or the tell the difference between two cars?

    Anyway, if someone out there knows this one it would be great to finally find out! Thanks.
    Every person is unique in its own way.So there is some difference in a persons voice as compared to the next.It also depends on the samples quality and with today advance FVC and software improvements. We have some success in this respect.
    Regarding your second question i have to conduct a bit more research

    Hopefully i will get back to you soon


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  4. #3  
    Forum Ph.D. stander-j's Avatar
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    Quote Originally Posted by Brain Harry View Post
    Quote Originally Posted by stander-j View Post
    I think my question about FVC is a two-part question the first question, which feels almost silly to ask as the name implies the answer, is: can two similar sounding voices be told apart regardless of the type of samples acquired? For this question I am specifically wondering about whether or not you can definitely confirm two voice samples that are recorded, an example being two voicemails.

    My second question is about vibration patterns. As I've come to understand, the vibrations created by the vocal folds in our throats can be used to identify a vibration pattern. What I can't seem to find out is whether these vibration patterns are unique or not. For instance, if I were to be saying this outloud, would the vibration pattern be a representation of the words I say, or a unique pattern of my vocal folds in general - like how we all have unique fingerprints? I suppose I have a third question: If these vibration patterns were unique like fingerprints, does anyone know how unique they are? Would we be talking: tell the difference between two houseflies, or the tell the difference between two cars?

    Anyway, if someone out there knows this one it would be great to finally find out! Thanks.
    Every person is unique in its own way.So there is some difference in a persons voice as compared to the next.It also depends on the samples quality and with today advance FVC and software improvements. We have some success in this respect.
    Regarding your second question i have to conduct a bit more research

    Hopefully i will get back to you soon
    I could've sworn I that around the time I joined TSF. Hard to believe it was only 9 months ago. Anyway, thanks for the response - hope you'll be able to answer the second part of my question as well!
    "Cultivated leisure is the aim of man."
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