How Does PWM Work? PWM works by pulsating DC current, and varying the amount of time that each pulse stays ‘on’ to control the amount of current that flows to a device such as anLED. PWM is digital, which means that it has two states: on and off (which correspond to 1 and 0 i...
How does a pulse dye laser work? How does a quantum dot laser work? What component detects if a laser diode is working? How does an X-ray laser work? How do infrared laser sights work? How is an excimer laser produced? How does fiber laser welding work?
Ultimately, this patent described pulse-code modulation, which involved taking discrete samples of an analog signal, quantizing it so that each sample was assigned an integer value, and then transmitting the binary of that value. This method was more in line with how telegraphy worked and theoreti...
One important thing to notice is that electrons flow in the second wire only when you connect or disconnect the battery. A magnetic field does not cause electrons to flow in a wire unless the magnetic field is changing. Connecting and disconnecting the battery changes the magnetic field (connect...
After all this work, the speech recognizer has all the mechanics necessary to recognize if a particular phoneme was spoken. An important question still needs answering: How does it determine which phoneme to look for? A speech recognizer works by hypothesizing a number of different “states” ...
We could simplify the command above but then be aware that FFmpeg will adopt or guess the default values for you. For instance when you just type ffmpeg -i input.avi output.mp4 what audio/video CODEC does it use to produce the output.mp4?
This super-simple project will not work if you are very far from the station, but it does demonstrate how simple a radio receiver can be. Here's how it works. Your wire antenna is receiving all sorts of radio signals, but because you are so close to a particular transmitter it doesn'...
How does an audio CD work? When you insert an audio CD into a compatible player, a laser reads the tiny pits on the disc's surface, converting them into an electrical signal that reproduces the sound. Can I play an audio CD on my computer?
In digital audio using pulse-code modulation (PCM), bit depth is the number of bits of information in each sample. It corresponds to the resolution of each sample directly. For instance, compact disc digital audio uses 16 bits per sample (16-bit color depth); DVD audio and Blu-ray disc...
You can check out How Lasers Work to see precisely how a laser does this. Light Reflection When light waves reflect, they follow the law of reflection. The angle at which they strike the surface is the same as the angle at which they leave it. HowStuffWorks You can make and view ...