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PostPosted: Wed Nov 06, 2013 9:28 pm 
King of the Skip Monkeys
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Location: Moomin Valley
A b&w photocopy of the Fighting temeraire


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PostPosted: Wed Nov 06, 2013 11:17 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
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Joined: Tue Feb 26, 2013 6:26 pm
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Location: 54 Festive Road Winchcombe GLOUCS Yarp...
Like my Ruskin print rather than my Teasedale original?

So fir the sake of my ignorance, what's the equivalent bit rates for broadcasts on fm, dab, iPod playback etc versus CD or vinyl through my old Nad and English monitor speakers? I stick them all through it. Never really thought about it.


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PostPosted: Thu Nov 07, 2013 10:27 am 
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Location: daaan saaaf
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So fir the sake of my ignorance, what's the equivalent bit rates for broadcasts on fm, dab, iPod playback etc versus CD or vinyl through my old Nad and English monitor speakers? I stick them all through it. Never really thought about it.


http://computer.howstuffworks.com/mp32.htm

http://www.frequencyfinder.org.uk/DAB_sound.html

Personally, I find 128 Kbps is just about OK for talk radio on low quality devices, MP3 players etc. For music, it's pretty poor and at best sounds flat and lifeless, at worst, sibilant and nasty. 256 Kbps is OK for music in the car, but still sounds crummy on a decent hi-fi or a good set of headphones, 320 is better still, but still not as good as a totally uncompressed, lossless file or CD. Beyond CD quality, With really Hi Res files at 24/96, or 24/192 I think the limiting factor is the quality of the recording itself, a lot of rock and pop isn't that well recorded in the first place, but some "audiophile" recordings can sound stunning.

The vinyl/analogue versus digital debate is a whole other kettle o' fish, but my take on it is that anything recorded after about 1990 isn't likely to be purely analogue in any case, so if you buy a recording on vinyl made after 1990 it's likely to have been recorded or manipulated digitally at some point. So when you play the LP, you're just listening to whatever DAC (Digital to Analogue Converter) or ADC (Analogue to Digital Converter) the studio was using. Also, I think vinyl fans forget that in order to fit a long recording on a 12" disc, the bass has to be compressed considerably then re-boosted by the phono amp via RIAA equalization, so they're not listening to an entirely unadulterated signal in any case: http://en.wikipedia.org/wiki/RIAA_equalization


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PostPosted: Thu Nov 07, 2013 10:48 am 
King of the Skip Monkeys
King of the Skip Monkeys
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Joined: Wed Nov 07, 2007 4:34 pm
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Location: Moomin Valley
As an aside I think the first digital mixing desks were around in the late 70's with Sony Pcm digital recordings on to tape - ABBA?. According to Wiki DAB finds its roots as early as 1981. I remember the BBC were into it in the late 80's. Certainly I had a Kenwood car cassette player with separate DAB tuner. That was 1997.

Some DVD special editions came with 24/192 samples but I don't know what blu Ray is at.


Cor. SONY PCM 1 was released in 1977! Digital recording for the home.


Last edited by legrandefromage on Thu Nov 07, 2013 1:54 pm, edited 1 time in total.

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PostPosted: Thu Nov 07, 2013 10:55 am 
retrobike rider
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Joined: Wed Jul 09, 2008 5:53 pm
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Location: Super Sussex by the Sea
As another aside, don't get one of these...

http://www.johntaylors.com/catalogues/0 ... s/A613.jpg

They're aren't dab, or indeed radio, but I got the one in our lounge (a family heirloom) going and I can confirm the sound quality was awful, although the Chatanooga Choo Choo has a highly addictive bassline


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PostPosted: Thu Nov 07, 2013 11:43 am 
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Joined: Fri Jan 28, 2011 12:09 pm
Posts: 553
Location: suffolk
Thanks for the input guys, i'm thinking this might be just the ticket?

http://presscentre.sony.eu/content/Deta ... wsAreaID=2

Matt


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PostPosted: Thu Nov 07, 2013 12:41 pm 
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Joined: Sun Mar 14, 2010 2:33 am
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Location: daaan saaaf
What about internet radio: http://www.whathifi.com/review/pure-digital-one-flow.

Suffers similar low bit rate to DAB on some stations, but could be more versatile than DAB alone if you have a decent wireless router. Where I live DAB and FM is a total waste of time and Digital TV is pretty flaky, but I can get a decent Wi-Fi signal throughout the house.


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