Options of Connecting CI (SSD) for DAI Testing

This blog entry provides a detailed guide on testing direct audio input (DAI) connectivity options for cochlear implants (CI) in single-sided deafness (SSD) patients. It outlines specific tools and methods, such as using splitters and various manufacturer accessories, for connecting CIs to audio players, audiometers, and other devices to optimize testing conditions. The entry also includes practical tips for managing volume control during testing and highlights a method used by the UNC Adult Cochlear Implant Program to accurately measure audiometer output during DAI testing.

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English King, AuD, CCC-A

Use splitter to connect to Audio playerCI recipient connects using DAI/AUX cable to listen for testing
- MED-EL Unilateral External Source 90/10 (red) DAI Cable
  - Support and help for SONNET 2 - Connectivity (medel.com)
  - RONDO Connectivity (medel.com)
- Cochlear Americas: Audio/Line-In Cable with streaming accessory (Mini Mic 2+)
  - Pairing | Wireless Mini Microphone | Nucleus 8 (cochlear.com)
  - How to Use the Wireless Mini Microphone | Cochlear
- Advanced Bionics: Audio cable with streaming accessory (Roger Mic)
  - Phonak Connectivity Options (phonakpro.com)
  - Naída CI Connect | Advanced Bionics
  - Compatibility Guide | Advanced Bionics
- AuD connects earphones to listen and for scoring
* Patient may report that volume even with PC/laptop (Audio player) at 100% volume is too soft.
- Use splitter to connect to headphone port of Audiometer
  - Plug audiometer headset into one side of the splitter & DAI/Audio cable [see options above] into the other side of splitter
  - Turn Channel 1 stimulus to a transducer that is NOT the speaker (to prevent any bleed through) dialed to -10 dB HL
  - Pick your speech stimulus
  - Present at -10 dB HL BUT turn up the “monitor channel 1” dial to where the patient finds the volume to be comfortable
    - With the splitter/aux cord they are getting the signal that the audiologist would be getting from the “monitor channel 1” dial
    - If the audiologist finds this level to be too loud, they can use the dial on the splitter to reduce the volume of their headset but maintain the level for the patient
* More control over presentation/volume level.UNC Adult Cochlear Implant Program uses mask/muff method to accurately measure output from audiometer (60 dB SPL) versus DAI testing (MCL). A shoutout to Dr. Erika Gagnon with Children’s Cochlear Implant Center at UNC for sharing their above audiometer approach to DAI SSD testing.

Options of Connecting CI (SSD) for DAI Testing

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Options of Connecting CI (SSD) for DAI Testing