it records sounds by eletricity
it was thomas Edison who invented the electrical vote recorder but I don't know what it is
In a tape recorder, electrical energy from the battery is transformed into sound energy by converting the electrical signal into mechanical vibrations in the speaker, which produce sound waves. The sound waves then propagate through the air as sound energy that we hear.
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A data recorder can be purchased at many hobby shops and electrical retailers, or online at sites such as 'quick sales' 'electric burst' 'd h gate' and 'hobby king'.
In a tape recorder, electrical energy from the batteries or power source is transformed into mechanical energy to drive the motor that spins the tape reels. When recording, sound waves are converted into electrical signals (electrical energy), which are then encoded onto the magnetic tape as magnetic energy. During playback, the magnetic energy on the tape is converted back into electrical signals (electrical energy) that are amplified and converted into sound waves (sound energy) through the speakers.
You can get a great price on a Dazzle DVD recorder if you can find it on Craigslist. Failing that, you can try your local electrical store. Amazon or eBay tend to have great deals too.
a sound recorder works as follows: a microphone consisting of a diaphragm which moves cause of the vibrations of sound, and these sounds have a special wavelength and by this wavelength the device can determine what sort of electrical pulse it has to send and this electrical pulse triggers a machanism that transforms these pulses into a digital file wich consists of 0 and 1.
The Campbell recorder measures sunshine duration by recording when sunlight falls on its photocell. The photocell's electrical resistance changes when exposed to light, allowing the recorder to track periods of sunshine. This information is used to calculate the number of hours of sunshine during a specific time period.
It's an apparatus that can record variation of an electrical signal (Y) in time (t) on paper or on memory and displayed on a PC
You will need recorder grease for a wooden recorder, and recorder cream for a resin/plastic recorder. On either one, use your finger to smear the grease on the joints of the recorder. On a wooden recorder, the joint will be made of cork or string.
In a tape recorder, electrical energy from the batteries powers a motor that spins the cassette tape. This mechanical energy of the spinning tape then gets converted into sound energy as the tape passes over the playback heads, reproducing the recorded audio.
Recorder level