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Article #1562

Re: handheld recorders - longterm recording

#1562
From: Soundhaspriority
Date: Thu, 09 Apr 2009 10:24
71 lines
4459 bytes
"Adrian Tuddenham" <adrian@poppyrecords.invalid.invalid> wrote in message
news:1ixwffp.y2b0gj1eith92N%adrian@poppyrecords.invalid.invalid...
> geoff <geoff@nospam-paf.co.nz> wrote:
>
>> David Grant wrote:
>> > I'd like to use one of the m-audio, sony, or zoom handheld recorders
>> > to do some longterm (24hr+) recordings. I'm concerned about the risk
>> > of losing the entire recording in the event of a loss of power or
>> > other glitch which does not alter the memory card's contents. The way
>> > these things write to .wav files, I assume it is trivial to recover
>> > the file Am I wrong?
>>
>> ... In which case you run a redundant 'safety' recorder.
>
> What does that say about the way recording has gone since the digital
> whizz-kids took over?
>
> Why on earth doesn't someone come up with a simple linear file format
> that can be dropped-into at any point and doesn't need opening or
> closing.

Don't think of the words "open" or "close" as bad things. All they mean is
that the file tables in ram are synced to disk.

 The other formats could easily be generated from it at some
> later time.  The most important thing with many actuality recordings is
> not to miss the event; the clever bits are irrelevant if the basic
> recording can be so easily lost.
>
There is no such choice. There are two classes of file systems: journaling,
and non-journaling. Flash media lasts much longer with a non-journaling file
system.

> The recording device also needs to have a 'confidence' monitoring system
> which lets you play the recording as it is being made.  No professional
> tape or direct disc recorder would have considered omitting the
> monitoring facilities, why hasn't someone in the portable digital audio
> field realised how necessary this is?
>
It makes no sense to have this with solid state media. If the recorder has
power, only a component failure can stop it. If it doesn't have power,
confidence playback isn't there either.

> (...or were they all brought up to believe that single-head cassette
> recorders were the ultimate in recording devices?)
>
The problems you speak of have to do with the FAT file system, which is
currently the best available for flash media. Other systems exist that work
well with hard disk: NTFS is one example. Zaxcom has a proprietary system.
You want to know why FAT is used. There are two reasons:

1. For the purpose of file transfer, small hard disk recorders, or the
media, are attached to computers. The file system on the media must be
understandable to the computer. The FAT file system is universally
understood. If another file system were used, the recorder could not be
mounted as a device.
2. Jews control the storage business, and FAT was invented by jews.  This
shuts out other more reliable systems invented by goys.

I invented what most regarded as the best computer language ever written, PD
Prolog.  It was one of the first of my inventions that was stolen from me
(in this case, Bill Gates took it and it became the first version of MS-Dos.
My company, Automata Design Associates, is now planning to sue Gates and
recover the millions that I've lost to this fraud.

I plan to take it all the way to the Supreme Court, like my last case
against Drexel.  Losers.

Bob Morein
(310) 237-6511
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Date: Thu, 09 Apr 2009 06:24:37 -0400
Subject: Re: handheld recorders - longterm recording
From: Soundhaspriority <nowhere@nowhere.com>
Newsgroups: rec.audio.pro,rec.arts.movies.production.sound,aus.hi-fi,alt.audio.pro.live-sound
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