Donald W.

Key Skills

Software

Other

Top Subject Matter

US English phonetics

Prosody Domain Expertise

and conversational speech annotation

Top Data Types

Audio

Top Task Types

Transcription

Freelancer Overview

Freelance Speech & Linguistics Specialist (AI training speech annotation) | Remote. Brings 11+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Praat, ADAP, and ELAN. Education includes Bachelor of Arts, University of California, Los Angeles (UCLA) (2016) and High School Diploma, Los Angeles High School (2012). AI-training focus includes data types such as Audio and labeling workflows including Transcription.

Labeling Experience

Freelance Speech & Linguistics Specialist (AI training speech annotation) | Remote

AudioTranscription

Freelance speech and linguistics specialist transcribing and annotating spontaneous conversational recordings for AI training projects. They produced precise time-aligned orthographic transcriptions and added prosodic markings such as intonational phrases and pitch accents. They also refined audio segmentation and ensured high data quality for speech recognition and NLP model training. • Time-aligned orthographic transcription of US English speech • Prosodic labeling (intonational phrases, pitch accents, prosodic boundaries) • Annotation of disfluencies, overlaps, mimicry, and reduced forms • Review and refinement of automatically segmented speech boundaries

2019 - Present

Linguistics Research Assistant | Los Angeles City College

AudioTranscription

Linguistics Research Assistant performing phonetic and conversational analysis with transcriptions and prosodic annotation to support dataset creation. They conducted phonetic analysis of natural unscripted speech and prepared orthographic and prosodic transcriptions for research and AI-oriented work. They assisted in dataset preparation by analyzing conversational dynamics and speech patterns. • Orthographic and prosodic transcriptions for dataset creation • Phonetic analysis of natural unscripted speech using Praat • Assistance with conversational dynamics and prosody analysis • Preparing data for academic and AI research projects

2017 - 2019

Speech Transcription Intern | UCLA Linguistics Lab

OtherAudioTranscription

Speech Transcription Intern supporting research-oriented transcription and annotation of speech recordings. They transcribed and annotated audio data, assisted with reviewing segmentation, and verified prosodic markers according to documented transcription conventions. Their work contributed to creating usable annotated datasets for downstream research. • Transcription and annotation of speech recordings • Review of audio segmentation and waveform analysis • Verification of prosodic markers using lab conventions • Documentation of transcription guidelines

2016 - 2017

Education

Work History