1. Speaker Recognition Experiment
Seungchan Lee
Intelligent Electronic Systems
Human and Systems Engineering
Department of Electrical and Computer Engineering

2. Overview Software Release Speaker Recognition System Next Plans
lm_tester, network_builder
Debugging utility : Purify
HierarchicalSearch Class
Speaker Recognition System
Do Experiment with HMM using the MFCCs
Adding invariants in the feature file
Next Plans
These are the types of things we should discuss over daily lunches. I/O is an important part of speech research, and there are good reasons why we adopted our own I/O structure.

3. Software Release Purify Namemap problem Resolve Compilation problem
Compile without sphere utility
Track down memory problem
Resolve HierarchicalSearch class problem
Namemap problem
This is caused by the difference of the system which extract
features and train the feature files.
These are the types of things we should discuss over daily lunches. I/O is an important part of speech research, and there are good reasons why we adopted our own I/O structure.

4. Baseline system set up Set up Baseline system
It takes much time to set up the baseline system at this time.
It will be faster at the next experiment.
Problems with Adding invariants
Transform_builder
Window Class
Lyapunov exponent
The result recipe sof file has some problems.
 Every result feature vector has the same value.
 Sundar helps me to add the Lyapunov exponent,
we did not find the reason.
These are the types of things we should discuss over daily lunches. I/O is an important part of speech research, and there are good reasons why we adopted our own I/O structure.

5. Baseline system set up Set up Baseline system
It takes much time to set up the baseline system at this time.
It will be faster at the next experiment.
Problems with Adding invariants
Transform_builder
Window Class
Lyapunov exponent
The result recipe sof file has some problems.
 Every result feature vector has the same value.
 Sundar helps me to add the Lyapunov exponent,
we did not find the reason.
@ Sof
@ FeatureFile
name = "FEATURES";
file_type = "TEXT";
file_format = "SOF";
…………………………..
values = {
11.502, , ,10.292, , , , , ,4.4856
, , ,
}, { },
………………………………
These are the types of things we should discuss over daily lunches. I/O is an important part of speech research, and there are good reasons why we adopted our own I/O structure.

6. Baseline system set up Transform_builder problem
Open existing recipe file and save as different recipe file.
Two recipe files are not the same.
Window class has been modified after saving
Ryan looked into this problem
alignment = LEFT;
normalization = NONE;
compute_mode = CROSS_FRAME;
duration = 0.025;
debug_level = NONE;
constants = LEFT;
alignment = NONE;
normalization = CROSS_FRAME;
compute_mode = 0.025;
duration = NONE;
These are the types of things we should discuss over daily lunches. I/O is an important part of speech research, and there are good reasons why we adopted our own I/O structure.

7. Experiment Result Problems with hypothesis
The result hypothesis scores is highly less than previous result
The “ACCEPTED” and “REJECTED” hypothesis does not give correct decision.
MFCC Feature
Test Utterance
Test Utterance
IHD, 16 Mixture model
JSGF, 16 Mixture model
ACCEPTED: e-05 (KAAA)
REJECTED: (KAAB)
ACCEPTED: e-05 (KAAC)
REJECTED: (KAAD)
REJECTED: (KAAG)
ACCEPTED: (KAAH)
REJECTED: (KAAJ)
REJECTED: (KAAA)
REJECTED: (KAAB)
REJECTED: (KAAC)
REJECTED: (KAAD)
REJECTED: (KAAG)
REJECTED: (KAAH)
REJECTED: (KAAJ)
These are the types of things we should discuss over daily lunches. I/O is an important part of speech research, and there are good reasons why we adopted our own I/O structure.

8. DET Curve DET Curve (Tang’s) Probability Plot
These are the types of things we should discuss over daily lunches. I/O is an important part of speech research, and there are good reasons why we adopted our own I/O structure.
DET Curve (Tang’s)
Probability Plot

9. Speaker Recognition System
Next Plan
Software Release
Help Daniel to finish the release.
Speaker Recognition System
Do Experiment with HMM using the MFCCs and invariants
Compare the result to previous result
Analyze the result and track down the problem
Nonlinear System
Find the research topics
These are the types of things we should discuss over daily lunches. I/O is an important part of speech research, and there are good reasons why we adopted our own I/O structure.

10. List of activities (Spring semester)
Become familiar with our system
Make first simple program
Software Release
Work with Daniel on the Software Release
ProductionRuleTokenType – modify read/write function with namemap class
lm_tester, network_builder
Dummy symbol, exclude symbol problem
Debugging utility : Purify
Resolve compilation problem ( without sphere utility)
Fix memory problem – segmentation fault (HierarchicalSearch class
Speaker Verification System
Designing interface for Verification System
Combine three functionality, HMM/GMM, SVM, RVM
 New isip_verify Utility
Resolve checksum error (namemap)
These are the types of things we should discuss over daily lunches. I/O is an important part of speech research, and there are good reasons why we adopted our own I/O structure.