VoiceIn 4.1 product specification sheet

Fonix Embedded Programming Interface

  • OS Commands Pushed into FNX API

Platform ports

Memory Usage

  • Base Engine: 352 KB ROM
  • Dictionary: 0 – 2,323 KB ROM
  • Neural Networks: 50 – 225 KB ROM
  • 200 KB - 1 MB RAM based on number of words or grammar size (approximately 1.2 KB per word ROM/RAM)

MIPS

  • Word spotting: 10 words – 25 MIPS (can vary based on the CPU architecture)
  • Finite state grammar for continuous speech (not dictation): 20 words – 70 MIPS (can vary based on the CPU architecture)

Audio Requirements

  • Microphone-in, speaker-out support
  • 8 KHz – 8 bit μlaw/alaw (mono channel)
  • 8 KHz, 11 KHz, 16 KHz 10-16 bit linear, mono-channel
  • Bandwidth: 100 Hz to sample frequency/2 -- LPF 3dB skirt
  • Spectral Flatness: +/- 6dB
  • Total Harmonic Distortion (THD) < 2%
  • Signal-to-noise (SNR) > 0dB for best results

Platform support packages

Developer Support Program

  • SDK training, application development

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