The Traders' Den  

  The Traders' Den > Where we go to learn ..... > Technobabble > Lossy or Lossless?
 
Home Forums FAQ Register Members List

Notices

Lossy or Lossless? Please use this forum to post spectral and frequency analysis posts about shows you have your doubts about.

Reply
 
Thread Tools
  #1  
Old 2010-01-04, 11:22 PM
Powerfan's Avatar
Powerfan Powerfan is offline
31.04 GB/37.09 GB/1.19
 
Join Date: Jun 2008
Icon4 Question about using Trader's Little Helper to Spot Lossy

So I'm FINALLY organizing and categorizing my 300+ CD-Rs of shows, and I'm checking them out for lossy before archiving them.

I'm using EAC for making WAVs and the using Trader's Little Helper (version 2.4.1, build 160) to test them and so far I've tested 4 CDs for lossy and I've gotten the following results:

1, source of track cannot be qualified
2, track looks like CDDA with probability 100%
3, track looks like MPEG with probability 95%

What do these results mean?
I got the idea that "track looks like MPEG with probability 95%" means the disc is lossy and that "track looks like CDDA with probability 100%" means it's lossless, but what does "source of track cannot be qualified" mean? Is it lossless or lossy?

Thanks for any help!
__________________
My decaying list http://db.etree.org/powerman%205000
Mostly looking to trade my shows and recordings for vinyl records at the moment...
Reply With Quote Reply with Nested Quotes
  #2  
Old 2010-01-05, 02:25 AM
darkside02's Avatar
darkside02 darkside02 is offline
115.82 GB/65.22 GB/0.56
 
Join Date: Aug 2006
Re: Question about using Trader's Little Helper to Spot Lossy

I'd like to add the following questions:

how accurate is Trader's Little Help recognizing lossy sources?
what if I got a track looks like CDDA with probability 99%? does that makes it lossy?

thanks

ps- I didn't even know TLH had that option
__________________
.
Reply With Quote Reply with Nested Quotes
  #3  
Old 2010-01-05, 03:52 AM
Powerfan's Avatar
Powerfan Powerfan is offline
31.04 GB/37.09 GB/1.19
 
Join Date: Jun 2008
Re: Question about using Trader's Little Helper to Spot Lossy

Quote:
Originally Posted by darkside02 View Post
I'd like to add the following questions:

how accurate is Trader's Little Help recognizing lossy sources?
what if I got a track looks like CDDA with probability 99%? does that makes it lossy?

thanks

ps- I didn't even know TLH had that option
I got a track with CDDA 56%. So again, does that mean it's lossy?
__________________
My decaying list http://db.etree.org/powerman%205000
Mostly looking to trade my shows and recordings for vinyl records at the moment...
Reply With Quote Reply with Nested Quotes
  #4  
Old 2010-01-05, 04:01 AM
darkside02's Avatar
darkside02 darkside02 is offline
115.82 GB/65.22 GB/0.56
 
Join Date: Aug 2006
Re: Question about using Trader's Little Helper to Spot Lossy

Quote:
Originally Posted by Powerfan View Post
I got a track with CDDA 56%. So again, does that mean it's lossy?
Again, I didnt even know you could do that with TLH. I just test a cd and got a few tracks with 100% and some with 94% and it's just one source apparently so let's wait for someone more tech savvy to help us out
__________________
.
Reply With Quote Reply with Nested Quotes
  #5  
Old 2010-01-05, 04:15 AM
Powerfan's Avatar
Powerfan Powerfan is offline
31.04 GB/37.09 GB/1.19
 
Join Date: Jun 2008
Re: Question about using Trader's Little Helper to Spot Lossy

I was actually directing my last question to others but yea. I got one that is definitely MP3 sourced, but it reports it as 61% CDDA.
__________________
My decaying list http://db.etree.org/powerman%205000
Mostly looking to trade my shows and recordings for vinyl records at the moment...
Reply With Quote Reply with Nested Quotes
  #6  
Old 2010-01-06, 05:00 AM
Five's Avatar
Five Five is offline
189.30 GB/594.78 GB/3.14
 
Join Date: Oct 2004
Location: Canada
Re: Question about using Trader's Little Helper to Spot Lossy

the mp3 detection in TLH is a joke, its not much better than a ouija board. if its very very obviously lossy it will pick up on it but beware of false negatives and positives.

check this thread for a bit of info, also take a look in a couple of the threads in this forum to get an idea what to look for.
__________________
Checksums Demystified | ask for help in Technobabble

thetradersden.org | ttd recommended free software/freeware webring
shntool tlh eac foobar2000 spek audacity cdwave vlc

Quote:
Originally posted by oxymoron
Here you are in a place of permanent madness, be careful!
Reply With Quote Reply with Nested Quotes
  #7  
Old 2010-01-06, 08:51 AM
darkside02's Avatar
darkside02 darkside02 is offline
115.82 GB/65.22 GB/0.56
 
Join Date: Aug 2006
Re: Question about using Trader's Little Helper to Spot Lossy

thanx Five
__________________
.
Reply With Quote Reply with Nested Quotes
  #8  
Old 2010-01-06, 06:27 PM
Powerfan's Avatar
Powerfan Powerfan is offline
31.04 GB/37.09 GB/1.19
 
Join Date: Jun 2008
Re: Question about using Trader's Little Helper to Spot Lossy

Thanks five. What would you recommend for easy lossy detection?
__________________
My decaying list http://db.etree.org/powerman%205000
Mostly looking to trade my shows and recordings for vinyl records at the moment...
Reply With Quote Reply with Nested Quotes
  #9  
Old 2010-01-06, 07:47 PM
Powerfan's Avatar
Powerfan Powerfan is offline
31.04 GB/37.09 GB/1.19
 
Join Date: Jun 2008
Re: Question about using Trader's Little Helper to Spot Lossy

Quote:
Originally Posted by Powerfan View Post
What would you recommend for easy lossy detection?
Never mind my last post, I saw the link you posted which I previously missed.

Thanks again!
__________________
My decaying list http://db.etree.org/powerman%205000
Mostly looking to trade my shows and recordings for vinyl records at the moment...
Reply With Quote Reply with Nested Quotes
  #10  
Old 2010-01-08, 10:06 AM
darkside02's Avatar
darkside02 darkside02 is offline
115.82 GB/65.22 GB/0.56
 
Join Date: Aug 2006
Re: Question about using Trader's Little Helper to Spot Lossy

So, my question would be then, is there any way to check a file WITHOUT the spectrum analysis?
__________________
.
Reply With Quote Reply with Nested Quotes
  #11  
Old 2010-01-08, 03:41 PM
rspencer's Avatar
rspencer rspencer is offline
TTD Hoarder
TTD Staff
326.11 GB/317.06 GB/0.97
 
Join Date: Oct 2007
Location: the outer limits
Re: Question about using Trader's Little Helper to Spot Lossy

No. There is no easy automated way. they're more useful for the negatives than positives. If it says it's clean, it's pretty much clean. But almost all software has a crappy percentage when it comes to false positives for lossiness.
__________________
My main list .... My masters

Quote:
Originally Posted by dcbullet View Post
Sometimes im dense.
Quote:
Originally Posted by dcbullet View Post
I hate not being a real man.
Reply With Quote Reply with Nested Quotes
  #12  
Old 2010-01-08, 07:30 PM
darkside02's Avatar
darkside02 darkside02 is offline
115.82 GB/65.22 GB/0.56
 
Join Date: Aug 2006
Re: Question about using Trader's Little Helper to Spot Lossy

I guess I'll have to learn how to read spectrums, I've already tried a few times but I just don't get it.

thanks
__________________
.
Reply With Quote Reply with Nested Quotes
  #13  
Old 2010-04-26, 05:05 AM
michael123 michael123 is offline
0.00 KB/0.00 KB/---
 
Join Date: Apr 2010
Re: Question about using Trader's Little Helper to Spot Lossy

Hi rspencer,
What is meant by "all software has a crappy percentage when it comes to false positives for lossiness. " ?
is there software which make them clean?
Reply With Quote Reply with Nested Quotes
  #14  
Old 2010-04-27, 01:09 AM
tonebloke's Avatar
tonebloke tonebloke is offline
491.13 GB/783.96 GB/1.60
 
Join Date: May 2009
Re: Question about using Trader's Little Helper to Spot Lossy

I am not tech savvy and am resistant to change but one thing I have learned very slowly is that you need to "learn" how to use various bits of software; like TLH, Foobar, CEP, EAC etc, to work with your boots.
Awhile back on TC I took umbrage with a member there for going on about Specs and Freqs to prove lossy/lossless. Well the worm has turned and I have to give him an apology (I will once I find him). The best way to find out if the show you have is OK or not is to look at a spectral graphic and a frequency analysis. Sure it takes time to learn and figure out what you're looking at but it's worth it.
There are good guides here (thanks Drgiggles1) and there are members who will help out enormously when asked.

As "Molly" used to say, "do yourself a favour" and learn and use software that's out there. I am.
__________________
" Your tin cup and string "recorder" is worse than a Zoom, which is saying a lot".
Reply With Quote Reply with Nested Quotes
  #15  
Old 2010-04-28, 05:39 PM
AAR.oner's Avatar
AAR.oner AAR.oner is offline
TTD Staff
1.11 TB/1.41 TB/1.27
 
Join Date: Feb 2005
Re: Question about using Trader's Little Helper to Spot Lossy

Quote:
Originally Posted by michael123 View Post
Hi rspencer,
What is meant by "all software has a crappy percentage when it comes to false positives for lossiness. " ?
is there software which make them clean?
he means any program that analyzes and detects lossiness automatically...i know TLH has the feature [which is a GREAT windows program other than that]


to detect lossiness, you need to be able to visually analyze the file(s) yerself using Frequency Analysis (FA) & Spectral Analysis (SA)...there are various programs which can do one or both, some better than others...but any "built-in automatic lossy-detection" feature is not gonna be accurate
__________________
TTD's Gear Lust Forum -- info & reviews on taping gear
The Basics of EQing
Reply With Quote Reply with Nested Quotes
Reply

The Traders' Den > Where we go to learn ..... > Technobabble > Lossy or Lossless?

Similar Threads
Thread Forum Replies Last Post
Trader's Little Helper - roann Technobabble 1057 2024-08-06 12:58 PM
trader's little helper ? - Mills1988 Lossy or Lossless? 4 2008-03-25 10:19 AM
Trader's Little Helper Help? - dannyandamie Technobabble 2 2007-08-26 12:44 PM
Trader's Little Helper errors, need help please: - donovana Technobabble 4 2005-12-22 05:08 PM



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

Forums


All times are GMT -5. The time now is 06:18 PM.


Powered by: vBulletin, Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004 - , TheTradersDen.org - All Rights Reserved - Hosted at QuickPacket