Arrhythmias can be detected by seeing ECG waveforms.
- Subject:
- Life Science
- Material Type:
- Lecture
- Date Added:
- 06/24/2016
Arrhythmias can be detected by seeing ECG waveforms.
Filtering is the process of removing or separating the unwanted part of a mixture. In signal processing, filtering is specifically used to remove or extract part of a signal, and this can be accomplished using an analog circuit or a digital device (such as a computer). In this lesson, students learn the impact filtering can have on different types of signals, the concepts of frequency and spectrum, and the connections these topics have to real-world signals such as musical signals. Students also learn the roles that these concepts play in designing different types of filters. The lesson content prepares students for the associated activity in which they use an online demo and a variety of filters to identify the message in a distress signal heavily corrupted by noise.
Students learn the basic principles of filtering as well as how to apply digital filters to extract part of an audio signal by using an interactive online demo website. They apply this knowledge in order to isolate a voice recording from a heavily noise-contaminated sound wave. After completing the associated lesson, expect students to be able to attempt (and many successfully finish) this activity with minimal help from the instructor.
This course is about the study of speech sounds; how we produce and perceive them and their acoustic properties. Topics include the influence of the production and perception systems on phonological patterns and sound change, students learn acoustic analysis and experimental techniques. Students taking the graduate version complete different assignments.
This graduate level course presents theories, methodologies, and applications of seismic imaging for solving the shallow near-surface (0 - 500 m) effects on the seismic data processing for oil and gas exploration on land. It introduces both conventional and advanced imaging technologies that have been developed in academia and the seismic industry.
The Virtual Oscilloscope replicates a real, physical oscilloscope, including having live sound input on browsers that support it. It can also be embedded on any web page. The tool enables learners to become comfortable with using an oscilloscope in their own time. Oscilloscopes are expensive, niche pieces of equipment and this free online tool completely lowers the barrier for learners to get to grips with how they behave and function.