Been curious about this one Its very offtopic but since its the audio board, I say why not ask.


I'm sure there are ppl here who have to do with sound and audio in general.


Like an example, how are voices over radio editted to make them sound radiotransmission that effects its quality - I know its an unlucky describtion, but before I play around with Audacity, I want to learn a bit more

So far I know, it seems Hi or Low Pass filter (I think) may have to do with it. Or the bitrate? Dunno, I'd love to hear something.


Or hey, is there a audio-for-dummies-like-me guide out there in the net.


Hope somebody is willing to share some hints ^_^


Groove

 

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I don't fully understand your question...


You're trying to achieve a "radio" quality recording? Or a recording which sounds like we hear things over the radio?

 

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Yeah the first one, but that was just an example question ^_^


What I mean is something like artificially changing sound (in this case a voice, say a voice file as an example)


Of course I could toy and test around with Audacity, but I'm trying to understand what each setting would do and therefore am searching for hints or what-this-would-do


Heck, I wonder if there really is some kind of guide out there.


I'm sure ppl here at vn did something alike.

As for my intention, I wanted to do something just for fun and try to understand this stuff so I can alter voice, make it computer'esque or whatever.


I know the question in general is far-out. Maybe somebody can help (or not ^^)


Groove

 

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I don't fully understand your question either, but I'll answer what I can.


A low pass filter allows only lower frequencies through. It's like turning down a treble control.


A high pass filter allows only higher frequencies through. It's like turning down a bass control.


Both types of filters have a crossover point - a selected frequency where rolloff begins.


Wikipedia gives a much better explanation of what bit rate is.


Radio commercials and radio DJs often have some effects in use that make their voices sound bigger. A common trick is to speak up closer to the microphone to take advantage of proximity effect. They may also use electronic reverb or delay to further fill out the signal.


Radio stations use a LOT of compression overall. The reason for this is that broadcasters think that if their station is loud, you are more likely to listen to it. However, they can broadcast with only so strong of a signal before that signal begins to intrude on neighboring frequencies being used by other stations; this is called overmodulation. To make their signal seem louder without causing overmodulation, they use a combination of compression to make the signal, including quiet passages, louder and limiting to prevent peaks in the signal from overmodulating.

 

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No you hit the nail on the head, thanks


Your explanations is great, gonna check all the links you got there


Groove

 

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