1. www.listenandspeak.in Listen and speak clinic is a leading & Speech Therapy and Hearing Aid Center in Pune, Maharashtra. Our staff are multilingual in English, Hindi, Marathi and other vernacular languages of India, and understand the importance of treating everyone that comes to our office like family.

2. What is a hearing aid? Small electronic device Quiet and noisy situations 1 out of 5 who needs, actually uses Three Basic Parts ◦Microphone ◦Amplifier ◦Speaker www.listenandspeak.in

3. How does “hearing” work? Sound travels through outer ear Eardrum vibrates Three smalls bones carry sound to cochlea Vibration stimulates hair cells Creates electrical current to auditory nerve Transmits to brain www.listenandspeak.in

4. Hearing aid technology Telecoil Connect directly to hearing aid Filters background noise Used with telephones, FM systems, and induction loop systems Directional Microphones Amplify sounds more from front Better signal to noise radio Improves speech understanding in noise www.listenandspeak.in

5. What causes hearing loss? Two types of hearing loss: Conductive hearing loss Sound obstructed through the ear Treatable with surgery Sensorineural hearing loss Damage to the cochlea Most common type Type helped by hearing aid www.listenandspeak.in

6. How do hearing aids work? 2 types of hearing aids Analog Converts sound waves into electrical signals Custom built for each user Less expensive Digital Converts sound waves into numerical codes Similar to binary code More flexibility in adjustment www.listenandspeak.in

7. Analog hearing aid www.listenandspeak.in

8. Digital hearing aid www.listenandspeak.in

9. What type of hearing aids are there? BTE (Behind-the-Ear) ◦Fits behind pinna(ear) ◦Consists of case, earmold, & tube ◦Sound routed from case to earmold ◦Mini BTE www.listenandspeak.in

10. What type of hearing aids are there?(continued) ITE (In-the-Ear) ◦Mild to severe hearing loss ◦Completely inside outer ear ◦Not recommended for children ◦Capable of added features  telecoil www.listenandspeak.in

11. What type of hearing aids are there?(continued) ITC(In-the-Canal) ◦Mild to moderate hearing loss ◦Customized to recipient ◦Almost completely hidden ◦Difficult to adjust and change battery www.listenandspeak.in

12. What type of hearing aids are there?(continued) CIC(Completely-in-Canal) ◦Mild to moderate hearing loss ◦Smaller than ITC ◦Difficult to adjust and add features ◦More expensive www.listenandspeak.in

13. Cochlear Implant Designed for those who are profoundly deaf Can be used alone or with traditional hearing aid Two main systems: ◦External  Sound processer, microphone, and transmitter ◦Internal  Receiver and electrode array www.listenandspeak.in

14. Future for hearing aids ◦Bypass normal hearing system ◦Helps severe sensorineural, conductive, or mixed ◦Attach to bones in middle ear ◦Bypasses auditory canal and middle ear BAHA(Bone Anchored Hearing Aid) www.listenandspeak.in

15. Conclusion Hearing aids are smaller and more powerful Aiming for higher sound quality in the future Accommodate virtually every type of listening environment Continually adjust themselves to improve sound quality and reduce feedback Closer to achieving gift of hearing www.listenandspeak.in

16. Contact Us Listen n' Speak Clinic Addresses Shop No.202, 2nd floor, Vision Galleria, Near Kunal Icon, Pimple Saudagar, Pune – 411027 E-mail: info@listenandspeak.ininfo@listenandspeak.in Contact No: +91 9130528978 020 – 27206605 www.listenandspeak.in