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        BTE Internal Components Drawing
  1. Microphones
  • New microphone design is less prone to shock and feedback-related problems
  • Microphone diaphragms are perpendicular to receiver diaphragm, eliminating sympathetic vibrations that can cause feedback
  • Microphones are offset from port openings, reducing the potential for moisture problems
  2. Receiver
  • Filterless receiver is less susceptible to shock and moisture damage
  • New receivers provide a smoother frequency response, resulting in better sound quality
  3. DSP Chip
  • Newest generation of SONIC's patented multiplicative AGC processing and envelope mapping resulting in unprecedented sound quality
  • Uses efficient FFT+Finite Impulse Response processing, resulting in lower battery consumption
  • Group time delay of <6ms, providing real-time processing of sound
  • Dual A/D converters allow for multiple omni microphone directionality
  • E2 memory size increased 14,000% over previous SOIC DSP, allowing for implementation of more complex features
  4. Telecoil
  • Calibrated to match the omni microphone response
  • New telecoil design reduces electro-magnetic interference and "hum"(60 cycle).