USC Phonetics and Phonology Group

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USC Phonetics Laboratory
Prof. Dani Byrd, Laboratory Director

Photo credit: Stacey Halper

The USC Phonetics Laboratory is a state-of-the-art facility for acoustic and articulatory speech analysis. It includes a computing space and a physiology space and features the following capabilities:

Articulatory Movement Tracking
Carstens AG500 magnetometer—head-free 3D articulator movement tracking


older AG200 system shown Photo credit: Stacey Halper

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Aerodynamic and Laryngeal Data Collection
4 channel air pressure & flow transduction (Macquirer X16)
Electroglottograph

Data Analysis
MATLAB: with Simulink, Signal Processing Toolbox, MView and MAVIS-EVENTS with signal derivation & event marking capability

E-Prime and Spruce behavioral experiment software

Statview, SuperAnova, and JMP statistics packages

Audio Capabilities
Macquirer external A-D hardware
mAudio multi-channel direct-to-digital signal acquisition 

Audio Recorders: Marantz portable cassette recorder, 2 Sony handheld pro cassette recorder, Onkyo dual cassette deck, Portable Tascam DAT recorder

Microphones: Dynamic: Two Shure head-mounted cardiod; Sennheiser e845 super-cardiod, Condenser: Sennheiser short gun super-cardioid (K6 power module + ME66 capsule) with boom and table mounts, Audio-Technica C87-MKII Studio Microphone, Omni Lavalier microphone, various line-level USB microphones, Hi-fi open field & supra-aural headphones, Rolls pre-amp & mixer, Altec and Harmon Kardon powered speakers

Computer Hardware

  • Macs: 1 PowerMac G5s, 2 iMac G5s, 1 Intel iMac, 1 ibook, 1 Macbook Pro
  • PCs: 2 Gz PC laptop, 1 GHz PC
  • various flash, zip, Jaz and CD R/W drives
  • Laser printer
  • Color inkjet printer
  • Color scanner

Acoustic Analysis

  • Macquirer & Pitchworks software:
    • spectrograms, pitch-tracking, LPC & FFT analysis, on-line labelling
  • Kay Digital Sonagraph Model 5500
  • Praat
  • Synthworks: Graphical interface Klatt synthesis
  • Kay Elemetrics MultiSpeech
    • spectrograms, FFT, LPC
  • Kay Elemetrics ASL for LPC resynthesis
  • Audacity, CoolEdit, Wavesurfer and PeakLE waveform editors

Various Teaching and Office Software
Anatomical Charts and Models

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