Take a look at Infinity Reader. It supports audio, video and all ePub3 features. The reader comes with a free book, which contains youtube video. Moreover, you can download a lot of free books.
1. For which variety of English pronunciation can someone find more audio and video materials BrE AmE?
There are numerous web sites where you can find books on tape and DVD's in both BreE and Ame. "Booksontape.com" is a web site; Amazon has books and DVD's for AmE. Download Audiobooks with Audible.com is another site for AmE. The American market is probably larger due to the size of its population. As an American, I cannot speak for the BrE market, but I imagine you might find some things through BBC.com
2. When hooking up an hdmi cable to your ps3, do you also need the standard audio/video cable plugged in also?
Why would you do this ! HDMI already solve your video and audio requirement. Answer was in the question :)
3. Best audio/video capture device that will hook to DVD player and work well on Windows 7 and Vista?
You just need a good DVD ripping program like AnyDVD. Video capture does not work well with a DVD/BluRay player because they have antipiracy safeguards in place
4. xbox 360 audio but no video?
You might have a loose connection, a broken TV, or a broken AV wire. Probably the TV, as the other two things seem to check out. Also, maybe it is an end specific wire. Try switching it around
5. so i need to install Audio and Video drivers?
you need the driver disk for the motherboard. You will have to download to a CD on another computer and then insert it in your computer. If you have the original Dell Disk for the computer, it may have the Windows XP and the drivers on it.
6. What are the best audio and video cables for a home entertainment system?
digital optical I think digital optical and the coaxial might be essentially equivalent, but I still use digital optical if HDMI is not there.
7. i use an HP530 notebook. it's difficult to download clear audio and video signals. why ? Any solution ?
Do not download any drivers from third party web-site
8. Where can I get a good hidden body camera (that is, a camera you can wear that nobody will see/notice)? One that records audio and video, with good quality of both?
There are a number of covert video cameras that can be body worn.Do you want to be able to live stream or just record on the device?The most common covert body worn camera is a little standalone unit that records onto a Micro SD card and uses a button lens. These now record in 1080p HD and have a microphone for audio too...Here are some reviews to perhaps consider:Best 11 Button Cameras 2020 - Tested Reviews | GadgetsSpyOr if you want to live stream, you could use a 4G bodyworn camera that also has an extra, concealable, camera...You would get one with a variety of covert lenses...Just Google "Body worn cameras with covert camera". Where can I get a good hidden body camera (that is, a camera you can wear that nobody will see/notice)? One that records audio and video, with good quality of both?
9. Why are optical fibres extensively used for transmitting audio and video signal?
An optical fiber (or optical fibre) is a flexible, transparent fiber made of a pure glass (silica) not much wider than a human hair. It functions as a waveguide, or "light pipe", to transmit light between the two ends of the fiber. The field of applied science and engineering concerned with the design and application of optical fibers is known as fiber optics. Optical fibers are widely used in fiber-optic communications, which permits transmission over longer distances and at higher bandwidths (data rates) than other forms of communication. Fibers are used instead of metal wires because signals travel along them with less loss and are also immune to electromagnetic interference. Fibers are also used for illumination, and are wrapped in bundles so they can be used to carry images, thus allowing viewing in tight spaces. Specially designed fibers are used for a variety of other applications, including sensors and fiber lasers. An optical fiber junction box. The yellow cables are single mode fibers; the orange and blue cables are multi-mode fibers: 50/125 m OM2 and 50/125 m OM3 fibers respectively. Optical fibers typically include a transparent core surrounded by a transparent cladding material with a lower index of refraction. Light is kept in the core by total internal reflection. This causes the fiber to act as a waveguide. Fibers that support many propagation paths or transverse modes are called multi-mode fibers (MMF), while those that only support a single mode are called single-mode fibers (SMF). Multi-mode fibers generally have a larger core diameter, and are used for short-distance communication links and for applications where high power must be transmitted. Single-mode fibers are used for most communication links longer than 1,050 meters (3,440 ft).