<< Chapter < Page Chapter >> Page >
The results of an experiment testing our voice conversion algorithm and possible ways to improve it.

Description of experiment

To test our voice conversion algorithm, we administered a speaker identification test to twelve randomly selected people. Prior to the experiment, we recorded speech samples from four different speakers (two male and two female) and used our algorithm to convert between various combinations of their voices. For example, we took the sound of speaker #1 (the "source speaker") saying a certain phrase and converted it to the voice of speaker #2 (the "target speaker"). The participants listened to a series of these synthesized sounds, and we asked them to identify the speaker (the target) as well as the speaker's gender.

Results of experiment

The target speaker was correctly identified 74% of the time.

The target speaker's gender was correctly identified 93% of the time.

Graph of gender-specific conversion accuracy

The first bar, "Female to Female," indicates a conversion from a female source speaker to a female target speaker was correctly identified 83% of the time.

Conclusions

Our voice conversion system was fairly effective at imitating a certain target speaker. From the "Gender-Specific Conversion Accuracy" graph, it can be implied that our system was better at converting female source speakers than male source speakers. One reason for this may be that the voices of the two male speakers used in the experiment had only a minor difference in pitch. The female speakers' voices, however, had a more noticeable difference.

Possible improvements

At its current state, our system can only convert between two voices when it has samples of the speakers saying the same word or phrase. In order to make our system text-independent, we would need to implement neural mapping . This could be accomplished by using the cepstrum to identify certain characteristic sounds (such as vowel sounds) in the target speaker's speech sample and mapping their filters to the corresponding characteristic sounds in the source speaker's sample. In addition to adding text-independence to our system, we could add a band-pass filter at the end of our system to help eradicate speech artifacts in our synthesized sounds. The filter would block out frequencies that are not in the range of human speech.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Methods for voice conversion. OpenStax CNX. Dec 21, 2004 Download for free at http://cnx.org/content/col10252/1.2
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Methods for voice conversion' conversation and receive update notifications?

Ask