The Traders' Den  

  The Traders' Den > Where we go to learn ..... > Technobabble


Technobabble Post your general Need for Help questions here.
Lossy or Lossless?

Thread Tools
Old 2005-06-12, 08:13 AM
ffooky ffooky is offline
12.64 GB/12.23 GB/0.97
Join Date: Nov 2004
What is Pre-FM

I've just downloaded a White Stripes show from DIME which is described as "SBD->DAT->Pre-FM" but the frequency and spectral analyses seem to me indistinguishable from what I'd expect from an FM source: 15 KHz cut-off, some "noise" above that and a 19KHz pilot tone.

What exactly is Pre-FM and what characterises it in terms of analyses ?
Two tracks for a desert island:

Black Keys - I Got Mine
Tintern Abbey - Vacuum Cleaner
Reply With Quote Reply with Nested Quotes
Old 2005-06-12, 08:40 AM
robkismet's Avatar
robkismet robkismet is offline
35.58 GB/52.80 GB/1.48
Join Date: Nov 2004
Location: Nottingham, England
Re: What is Pre-FM

Well what you've downloaded is falsely labelled by the sound of it. "Pre-FM" refers to where a direct copy of a broadcast show "leaks" directly from the radio station master, so it doesn't suffer from any of the FM features you describe. A true pre-FM source should have the full spectral range that you'd expect on a radio station DAT master.
Reply With Quote Reply with Nested Quotes

The Traders' Den > Where we go to learn ..... > Technobabble

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 01:32 AM.

Powered by: vBulletin, Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Copyright ©2004 - , - All Rights Reserved - Hosted at QuickPacket
no new posts