I am curious about a few radio questions.
One , is you can buy digital radio's but what are the difference between these and the normal radio's that interpert analog radio waves.
Are they just transforming the analog to digital --- then to a DSP for minupulation --- then back to analog to the speaker/amiplifier.
Question 2
Some of these radio's are said to be HD (high definition)
But how can you make audio any more high definition then it orignially is besides the fact of reducing noise. I have even heard radio stations saying they broadcast in HD, but I don't understand how you can improve on voice quality other then the fact of filtering more noise out. If you are able to use all the 20hz to 20khz range that is all we can here it is not like TV broadcast where more pixel data can be transmitted ...etc to make better quality ,...it is just audio...
Do any radio stations broadcast digitally or is this just the cable companies TV broadcasts that are switching to all digital QAM64 ,...etc
Will the radio stations in the near future ever switch to all digital?
I guess the reason why the TV stations switched is because less bandwidth a channel takes up along with being able to encrypt/decrypt a channel easier , less interference ,....etc
Thanks for your comments
One , is you can buy digital radio's but what are the difference between these and the normal radio's that interpert analog radio waves.
Are they just transforming the analog to digital --- then to a DSP for minupulation --- then back to analog to the speaker/amiplifier.
Question 2
Some of these radio's are said to be HD (high definition)
But how can you make audio any more high definition then it orignially is besides the fact of reducing noise. I have even heard radio stations saying they broadcast in HD, but I don't understand how you can improve on voice quality other then the fact of filtering more noise out. If you are able to use all the 20hz to 20khz range that is all we can here it is not like TV broadcast where more pixel data can be transmitted ...etc to make better quality ,...it is just audio...
Do any radio stations broadcast digitally or is this just the cable companies TV broadcasts that are switching to all digital QAM64 ,...etc
Will the radio stations in the near future ever switch to all digital?
I guess the reason why the TV stations switched is because less bandwidth a channel takes up along with being able to encrypt/decrypt a channel easier , less interference ,....etc
Thanks for your comments