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UT DALLAS Erik Jonsson School of Engineering & Computer Science
FEARLESS engineering
CCi-MOBILE
Research Platform for Cochlear
Implants and Hearing Aids
Updates and Future Directions
Cochlear Implant LaboratoryCenter for Robust Speech Systems
The University of Texas at Dallas
John H.L. Hansen, Hussnain Ali, Sandeep Ammula, Juliana Saba
July 18, 2017 CIAP-2017
CRSS - Cochlear Implant Laboratory
Acknowledgements - Sponsors
Special thanks to Cochlear Corp. for their sustained
contributions and collaborations
This work was supported by Grant R01 DC010494-01A
awarded from the NIH/NIDCD
CRSS - Cochlear Implant Laboratory
2017 Platform – at a glance
Re-configurable, mobile,
powerful, and user-friendly
Compatible with:
Cochlear implants (Cochlear Corp.)
Hearing aid transducers
Supports:
Unilateral and time synchronized
Bilateral electric stimulation
Synchronized acoustic stimulation –
bimodal/electric+acoustic stim.
Modes:
Laboratory-based benchtop
Android for field trials
Plug-and-play
Portable, wearable
On-the-go adjustment of sound
processing parameters
CRSS - Cochlear Implant Laboratory
PC-based configuration
Acoustic Signal
Microphone(BTE)
RF coils
Digitized acoustic signal
Processed stimuli data
Electric output for
Cochlear Implants
Insert phones
Acoustic output for
Hearing Aids
PC/Tablet
CRSS - Cochlear Implant Laboratory
Android-based configuration
Acoustic Signal
Microphone(BTE)
RF coils
Digitized acoustic signal
Processed stimuli data
Electric output for
Cochlear Implants
Insert phones
Acoustic output for
Hearing Aids
Android phone/tablet
CRSS - Cochlear Implant Laboratory
Mobility with Android
Evaluate algorithms outside the lab in everyday naturalistic environments
CRSS - Cochlear Implant Laboratory
On-the-go adjustmentsConfigure MAP parameters on-the-go with
custom Apps suited to your experimental needs
CRSS - Cochlear Implant Laboratory
Real-time MATLAB capabilities
Flexibility like never before
Implement algorithms in MATLAB or
use exiting MATLAB routines
No need for
advanced
programming
skills
CRSS - Cochlear Implant Laboratory
Applications Suite
Broad range of MATLAB and Android
applications to help you get started
CRSS - Cochlear Implant Laboratory
Subjective Evaluations
0
10
20
30
40
50
60
70
80
90
100
AzBio QUIET AzBio +10 dB AzBio +5 dB CNC words CNC phonemes IEEE Quiet IEEE +10 dB IEEE +5 dB BKB-SIN
Pe
rce
nt C
orr
ect
Speech Material
Clinical CCi-MOBILE
Percentage correct mean speech recognitions scores with clinical processor and CCi-
MOBILE research platform. Error bars represent SEM. N = 8.
On all measures of test material, the CCi-MOBILE platform achieves
equivalent speech recognition performance to the clinical processor
CRSS - Cochlear Implant Laboratory
Availability
Open source software, and Hardware
available to the research community
Contact us on how you can get one
CRSS - Cochlear Implant Laboratory
FDA guidelines
“…we have determined that your study does not fall within
the scope of the IDE regulation, and an IDE application is not
required to be submitted to FDA for your proposed study.”
FDA – Feb., 2017
CCi-MOBILE platform is meant for “non-clinical” experimental
investigation of research ideas
Platform does not fall under the scope of an FDA IDE
Your organization must have IRB approval from your respective
institution to conduct any human testing.
CRSS-CILab submitted an Overview Summary of CCi-MOBILE
to FDA to assess FDA-IDE status; their response:
CRSS - Cochlear Implant Laboratory
Further Details
Hands-on Workshop
Wednesday, July 19th at 2:30 – 3:30 pm
Location:
“Alumni” Room – next to indoor dining room
Will provide details on:
obtaining a CCi-MOBILE platform package
available software suite
sample routines & use for benchtop & field use
CRSS - Cochlear Implant Laboratory
Future Plans
Advance technical capabilities of the platform.
Improve wearable design of the system to
facilitate field trials.
Improve software with custom applications for
noise suppression and speech enhancement.
Improve battery life.
Make available to broader research community.
Continue improvement at several fronts.
Hold annual workshops at CIAP, ASA, and UTD.
CRSS - Cochlear Implant Laboratory
Q&A