Lung Sounds

Welcome to our lung sounds training page. We offer several ways to improve lung auscultation skills. Our reference guide is designed to provide quick access to abnormal sounds, with summary listening tips, audio examples and waveforms. Our two lung sounds courses are an ideal entry point for new learners. The repetition training pages provide a methodology that helps some users memorize each type of lung sound. Finally, our newest offering are a series of interactive case studies in pulmonary problem solving.


Lung Sounds Definition

Lung sounds, also called respiratory sounds or breath sounds, can be auscultated across the anterior and posterior chest walls with a stethoscope. Adventitious lung sounds are referenced as crackles (rales), wheezes (rhonchi), stridor and pleural rubs as well as voiced sounds that include egophony, bronchophony and whispered pectoriloquy. Descriptions and audio recordings for all of these sounds are available on this website.

Lung Sounds Reference Guide

Our auscultation guide provides quick access to normal, voiced and adventitious sounds. Our guide includes audio recordings, listening tips and a waveforms.


Lung Sounds Lessons

Learn lung sounds by taking our free courses These courses cover basic and intermediate levels of adventitious lung sounds and voiced sounds. Use the table of contents below to review and access a course or lesson.


Basics of Lung Sounds
The goal of this basic course in lung sounds is to improve auscultation observational skills. We focus on describing important breath sounds and in providing recordings of each. Many students find that waveform tracings aid in learning lung sounds; we have included dynamic (moving cursor) waveforms with each lesson. The anatomy pages use illustrations to reveal an example of each lung sound (anatomy not yet available on smartphones).
Lesson List
Intermediate Lung Sounds
The goal of this intermediate course is to expand your observational skills when auscultating breath sounds. The course lessons include voiced sounds: bronchophony, egophony and whispered pectoriloquy. We also provide auscultation lessons on several types of wheezes, crackles and stridor. Each of these lung sound lessons includes audio, text and dynamic waveform. The anatomy pages use illustrations to reveal an example of each lung sound (anatomy not yet available on smartphones).
Lesson List

Pulmonary Problem Solving

Cases in pulmonary problem solving that integrate clinical skills training with respiratory care. This course is presented by the Practical Clinical Skills website.

Repetition Training

As a supplement to our courses and reference guides, we provide auscultation repetition training. This training is available using courses or quick lessons.

Repetition Training