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Re: Audio CD or CD/DVD-ROM

Subject: Re: Audio CD or CD/DVD-ROM
From: "Sjoerd Mayer" <>
Date: Mon, 09 Feb 2004 08:59:10 -0000
At first I didn't think it worth the time and effort to reply to the 
below, but here I am wasting my time.

Pieter wrote: 
> While Sjoerd's application base is fine and well tested - a lot of 
people who buy the products are more computer savy these days and 
expect a lot more from the products, like decent distribution maps, a 
comprehensive list of species in the region, species descriptions etc.

Our CD-/DVD-ROMs are not intended to replace the field guides, but as 
a complement: they carry the sounds which the field guides do not 
provide, in a format which is infinitely more practical than a big 
stack of audio CDs and a small stack of booklets. Users which "expect 
a lot more" should wait until those more comprehensive products are 
published.

> In addition, people trying to access the sounds will invariably try 
and reverse engineer your software and compromise what (little) 
copyright protection that offers.

Whatever that means... We make the CD-/DVD-ROMs to show (and let 
hear) people the beauty of birds. If someone else can do a better 
job: fine! Go ahead! We don't do this because of the (little) money.

> People instinctively distrust lossy compressions when used in 
nature sounds (they tend to remove the upper frequencies which are 
often the most important parts of the call, not to mention the 
problems of re-sampling).

All kinds of things come to my mind now:
- lossy compression is used for most sounds on our CD-/DVD-ROMs 
because otherwise all that sound (69 hours for the Ecuador DVD-ROM!) 
wouldn't fit on a single disc. It is not inherent to the CD-/DVD-ROM 
format (the author specifies for each recording what method to use: 
64 kbps MP3, 128 kbps MP3, 64 kbps WMA, 128 kbps WMA, etc, and 
also "no compression" is an option).
- if someone wants to use the recordings for playback, I bet the 
compression makes no difference in 99.99% of cases. I use to think of 
what my friend Tom Gullick (the world's top lister) said about 
playback: "if birds are in the right mood, they will respond to any 
recording. I had birds flying in to recordings on which I hadn't even 
noticed it!".
- MP3 may "tend to remove the upper frequencies", but those weren't 
present in those original recordings which were made on cassette 
tapes anyway. And many excellent recordists taped on cassette tapes 
(many still do!, certainly in the tropics). So they apparently 
thought/think that the absence of those inaudibly (for us) high 
frequencies isn't too important. Besides, MP3 and WMA may "tend to 
remove the upper frequencies", but the sonograms show still plenty of 
high frequencies, almost as much as with (uncompressed) audio CD 
recordings.

> As for quick and easy access to the tracks and identifying the 
species on an Audio CD - that can be achieved by publishing a CDDB 
for the product on one of the several Internet databases.

But it's still nothing compared to the "Find" function on our CD-/DVD-
ROMs.

> as well as throwing ... some text in as well

You may not have noticed it, but the text is quite important.

And please note that our South American CD-/DVD-ROMs are also 
installable in Spanish. I was told that my own Bolivia CD-ROM is 
widely used in Bolivia, especially by biologists and students (even 
though we only sold a few copies there.... I guess I shouldn't say 
this, but a CD-ROM copy costs only a few dollarcents - much cheaper 
than copying a stack of audio CDs and their booklets.)

> Your market for an Audio CD is far, far greater than that of a CD-
ROM (think Windows and Apple Macs here, plus how many people out 
there actually own a computer).

John Moore told me how many Ecuador CDs he sold, and I can tell you 
that our CD-/DVD-ROMs sell almost as well as his audio CDs. Add to 
that all the illegal copies, and I think our "market penetration" is 
far greater.

Walter Knapp wrote: "When making a disk of a country like Ecuador, 
how many sales go back to the country? I'd expect even CD would be 
much less common there, and computers of any kind very uncommon."

I think Walt never was around there. PCs are cheap and ubiquitous, at 
least in Bolivia. And Bolivia is supposedly a poorer country than 
Ecuador. People have strange ideas about "the third world".

> I think CD-Audio format is a better choice.

I don't.

Sjoerd

ps WMA stands for Windows Media Audio, which is Microsoft's 
proprietary audio compression method.




--- In  "Pieter Wessels" 
<> wrote:
> Hi,
> 
> With regards to the question posed by John Moore on Audio CD or 
CD/DVD-ROM 
> format for commercial products.
> 
> The CD/DVD-ROM formats have the obvious appeal of more than 99 
tracks per CD 
> as well as throwing a few photographs and some text in as well.
> 
> On the down side of CD/DVD-ROM: you have to develop an 
application.  While 
> Sjoerd's application base is fine and well tested - a lot of people 
who buy 
> the products are more computer savy these days and expect a lot 
more from 
> the products, like decent distribution maps, a comprehensive list 
of species 
> in the region, species descriptions etc.  You also have to provide 
product 
> support - I've never heard (well, far less frequently anyway) of 
someone 
> needing help playing a traditional Audio CD.
> 
> In addition, people trying to access the sounds will invariably try 
and 
> reverse engineer your software and compromise what (little) 
copyright 
> protection that offers.
> 
> People instinctively distrust lossy compressions when used in 
nature sounds 
> (they tend to remove the upper frequencies which are often the most 
> important parts of the call, not to mention the problems of re-
sampling).  
> The problem is that most people associate these sorts of 
compression 
> algorithms with sounds played through the computer, regardless of 
the fact 
> that these problems can be avoided by using a loss-less 
compression.  The 
> problem of perception remains and many people will feel 
uncomfortable or 
> distrust sounds that appear to have been manipulated and played 
through a 
> computer.
> 
> One also has to be fairly computer savy to create a play-back tape 
from a 
> CD-ROM.  (I realise and don't even wish to start discussing the 
ethics of 
> using play-back never mind the copyright issues, but it happens and 
people 
> sell CDs because it happens).
> 
> As for quick and easy access to the tracks and identifying the 
species on an 
> Audio CD - that can be achieved by publishing a CDDB for the 
product on one 
> of the several Internet databases.
> 
> Your market for an Audio CD is far, far greater than that of a CD-
ROM (think 
> Windows and Apple Macs here, plus how many people out there 
actually own a 
> computer).
> 
> I think CD-Audio format is a better choice.
> 
> Pieter Wessels
> 
> _________________________________________________________________
> Tired of 56k? Get a FREE BT Broadband connection 
> http://www.msn.co.uk/specials/btbroadband



________________________________________________________________________
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"Microphones are not ears,
Loudspeakers are not birds,
A listening room is not nature."
Klas Strandberg
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