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Selective Filtering Ear Plug
ByDr. Abdelhafid Bouhraoua
Inventor
Noise is everywhere …
Construction
City
Construction
Sleep is Needed
Can’t Sleep ? Too much noise
Total Isolation
Use Ear Plugs
Total Isolation• Advantage
– Sleep Well
• Inconvenient– Cannot hear important sounds
•Adhan•Baby Cry•Telephone ring•Alarm Clock
What to use ?
?
What to use ?
Use Selective Filtering Ear Plugs
Selective Filtering
Principle
Filter All the noise except authorized noise
Principle
MiniatureSpeakerElectronics
+ RF Antenna+ Battery
Common “Total Isolation”
Ear Plug
RF Antennato transmit Recognized
Sounds to Ear Plug
DSP-based soundAnalysis device
Microphone to listento environment
How does it work ?1. Pre-record soundtracks that the user
authorizes– Adhan, baby cry, telephone ring, etc …
1. Pre-record soundtracks that the user authorizes– Adhan, baby cry, telephone ring, etc …
2. The listening device continuously records all the noise
How does it work ?
1. Pre-record soundtracks that the user authorizes– Adhan, baby cry, telephone ring, etc …
2. The listening device continuously records all the noise
3. Continuously compare any listened noise to the stored authorized sounds
How does it work ?
1. Pre-record soundtracks that the user authorizes– Adhan, baby cry, telephone ring, etc …
2. The listening device continuously records all the noise
3. Continuously compare any listened noise to the stored authorized sounds
4. In case of a match send the soundtrack to the ear plug
How does it work ?
1. Pre-record soundtracks that the user authorizes– Adhan, baby cry, telephone ring, etc …
2. The listening device continuously records all the noise
3. Continuously compare any listened noise to the stored authorized sounds
4. In case of a match send the soundtrack to the ear plug
5. The ear plug electronics will playback The sound to wake-up the user.
How does it work ?
Feasibility• Need Signal Processing Expertise:
Professor AlShafeii CCSE Dept.• Need Wireless technology:
Available short range wireless transceivers (inexpensive)
• Need means to record sounds: The PC has high sound recording capabilities
• Need Ear Plugs: Widely available
Next !!!
Never Have To Do This Again !!!
