Difference between revisions of "R R/R Radio Ramona and Ruelles"
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:= a set of rules or procedures for transmitting data, preexisting agreement as to how the information will be structured and how each side will send and receive it. | := a set of rules or procedures for transmitting data, preexisting agreement as to how the information will be structured and how each side will send and receive it. | ||
;Sound | ;Sound | ||
:= vibration | := vibration ''sound waves travel much like ripples over the water'' | ||
'''sound = vibration''': we take a container, put some plastic on top and some sugar or coffee, when we hit with a stick on a pan/pot or a trompet, coffee will move | |||
;frequency | ;frequency | ||
:= vibration per second --> Hertz | := vibration per second --> Hertz | ||
The electromagnetic spectrum --> power - telephone - radio/tv - microwave - ir - uv - x rays | |||
spread spectrum communications and frequency hopping-> hedy lemar was a pioneer wifi connexions. | spread spectrum communications and frequency hopping-> hedy lemar was a pioneer wifi connexions. | ||
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device neurologic: it measures your brain waves. | device neurologic: it measures your brain waves. | ||
* delta brain waves: 0.5 to 4 Hz | |||
* theta brain 4 to 8 Hz | |||
* alpha 8 12 Hz | |||
* beta 13 to 30hz --> 30hz is where the voice starts. | |||
am --> amplitude modulation | am --> amplitude modulation | ||
fm --> frequency modulation | fm --> frequency modulation | ||
[[ | [[File:Fmradio.png]] | ||
FM RADIO | FM RADIO | ||
Latest revision as of 09:51, 2 October 2014
- Interface
- = an intermediair which enables 2 systems to communicate with each other
- Protocol
- = a set of rules or procedures for transmitting data, preexisting agreement as to how the information will be structured and how each side will send and receive it.
- Sound
- = vibration sound waves travel much like ripples over the water
sound = vibration: we take a container, put some plastic on top and some sugar or coffee, when we hit with a stick on a pan/pot or a trompet, coffee will move
- frequency
- = vibration per second --> Hertz
The electromagnetic spectrum --> power - telephone - radio/tv - microwave - ir - uv - x rays
spread spectrum communications and frequency hopping-> hedy lemar was a pioneer wifi connexions. dif freq: lower are the highest, smaùl instruments and the higher are the lower freq, big instruments 20 hz and 20khz is the range we hear. device neurologic: it measures your brain waves.
- delta brain waves: 0.5 to 4 Hz
- theta brain 4 to 8 Hz
- alpha 8 12 Hz
- beta 13 to 30hz --> 30hz is where the voice starts.
am --> amplitude modulation fm --> frequency modulation
FM RADIO signal --> transducer (it makes this freq to an electric signal) ---> transmitters (antenna) --> electromagnetic wave --<-receiver <-- transducer <-- antenna
ramona (radio/character) --> common voice
Mobile streaming unit: raspberry pi + battery + microphone + soundcard + usb hub (to split voltages)
icecast2 streaming --> program for streaming
liquidsoap ==> radio manager
when it has no connection it automatically connects to the playlist. it is scrpited so that it reconnects by their own.
Phone. train-. data connection. from your laptop without internet . only in the phone. you can make a WIFI SPOT from yourpphone. who is interested in setting a radio with raspberry please follow the documentation below:
https://hackerspace.be/Radio-ruelle https://ooooo.be/ruelles
