Web-Based Phonetics and Phonology Experiments with LabVanced

The Phonetics Lab licenses the LabVanced software for designing and conducting web-based experiments.

Labvanced has particular value for phonetics and phonology experiments because of its:

• *Flexible audio/video recording capabilities and online eye-tracking.
• *Presentation of any kind of stimuli, including audio and video
• *Highly accurate response time measurement    
• *Researchers can interactively build experiments with LabVanced's graphical task builder, without having to write any code.

Students and Faculty are currently using LabVanced to design web experiments involving eye-tracking, audio recording, and perception studies.  

Subjects are recruited via several online systems:

• * Prolific and Amazon Mechanical Turk - subjects for web-based experiments.
• * Sona Systems - Cornell subjects for for LabVanced experiments conducted in the Phonetics Lab's Sound Booth

Computing Resources

The Phonetics Lab maintains two Linux servers that are located in the Rhodes Hall server farm:

• Lingual -  This Ubuntu Linux web server hosts the Phonetics Lab Drupal websites, along with a number of event and faculty/grad student HTML/CSS websites.  

• Uvular - This Ubuntu Linux dual-processor, 24-core, two GPU server is the computational workhorse for the Phonetics lab, and is primarily used for deep-learning projects.

In addition to the Phonetics Lab servers, students can request access to additional computing resources of the Computational Linguistics lab:

• *Badjak - a Linux GPU-based compute server with eight NVIDIA GeForce RTX 2080Ti GPUs

• *Compute server #2 - a Linux GPU-based compute server with eight NVIDIA  A5000 GPUs

• *Oelek  - a Linux NFS storage server that supports Badjak. 

These servers, in turn, are nodes in the G2 Computing Cluster, which currently consists of 195 servers (82 CPU-only servers and 113 GPU servers) consisting of ~7400 CPU cores and 698 GPUs.

The G2 Cluster uses the SLURM Workload Manager for submitting batch jobs  that can run on any available server or GPU on any cluster node. 

Articulate Instruments - Micro Speech Research Ultrasound System

We use this Articulate Instruments Micro Speech Research Ultrasound System to investigate how fine-grained variation in speech articulation connects to phonological structure.

The ultrasound system is portable and non-invasive, making it ideal for collecting articulatory data in the field.

BIOPAC MP-160 System

The Sound Booth Laboratory has a BIOPAC MP-160 system for physiological data collection.   This system supports two BIOPAC Respiratory Effort Transducers and their associated interface modules.

Language Corpora

• The Cornell Linguistics Department has more than 880 language corpora from the Linguistic Data Consortium (LDC), consisting of high-quality text, audio, and video corpora in more than 60 languages.    In addition, we receive three to four new language corpora per month under an LDC license maintained by the Cornell Library.

• This Linguistic Department web page lists all our holdings, as well as our licensed non-LDC corpora. 

• These and other corpora are available to Cornell students, staff, faculty, post-docs, and visiting scholars for research in the broad area of "natural language processing", which of course includes all ongoing Phonetics Lab research activities.   

• This Confluence wiki page - only available to Cornell faculty & students -  outlines the corpora access procedures for faculty supervised research.

Speech Aerodynamics

Studies of the aerodynamics of speech production are conducted with our Glottal Enterprises oral and nasal airflow and pressure transducers.

Electroglottography

We use a Glottal Enterprises EG-2 electroglottograph for noninvasive measurement of vocal fold vibration.

Real-time vocal tract MRI

Our lab is part of the Cornell Speech Imaging Group (SIG), a cross-disciplinary team of researchers using real-time magnetic resonance imaging to study the dynamics of speech articulation.

Articulatory movement tracking

We use the Northern Digital Inc. Wave motion-capture system to study speech articulatory patterns and motor control.

Sound Booth

Our isolated sound recording booth serves a range of purposes--from basic recording to perceptual,  psycholinguistic, and ultrasonic experimentation. 

We also have the necessary software and audio interfaces to perform low latency real-time auditory feedback experiments via MATLAB and Audapter.