Glad that it tested out ok.
Let us all know if you find any other compression programs that have
free .flt files for Cooledit. That was the biggest advantage for me
of just being able to treat them like just another file within my
choosen sound editor.
Rich Peet
--- In Saint Exupery
<> wrote:
> At 02:20 28/08/2003 +0000, you wrote:
> >I guess it was rude not to post a file to play with and test drive.
> >
> >http://home.comcast.net/~richpeet/0148.fla
> Great sound record !
>
> I did some tests with the flac codec but also with the ogg vorbis
just to
> have a better idea about the pro and the con of such compressors. I
have
> used 2 long sound records respectively of 372Mb and 178 Mb for this
purpose
> and, well, =85. I was agreeably surprised !!!
>
> The flac codec is quite efficient and fast enough as the
compression level
> is not pushed over 5 . It is really a lossless format. I checked
it by
> converting an original .wav file in a .flac file and by converting
the
> .flac file back to a .wav file. The two .wav files are identical.
I'm
> convinced now I will use it to store my original files !
>
> It is more difficult to have a judgement about the quality of the
ogg
> vorbis codec as I don't have good conditions to listen the
compressed
> files (bloody computer fans !!!). The next step will be to make a
> furniture to isolate this noise and vibration generator called PC=85
>
>
> The first sound record is a seabirds colony without seabirds (they
were
> coming) ! The second one is the same seabirds colony few hours
after :
> really noisy (some samples available on
> http://homepages.paradise.net.nz/waughfil/index.htm).
>
>
>
> File 1 (quite seabirds colony, stereo, 48 kHz, 16bit, 33m03)
> Raw file .wav PCM: 372 MB
>
> Lossless compression
> Flac, compression level =3D5 : 122.3 MB (
> 1m) ratio =3D 3.0
> Flac, compression level=3D8(max) : 121.8 MB (4m20) =
ratio =3D 3.0
>
> Lossy compression but really good quality
> Ogg Vorbis, quality=3D10 (max) : 105.4 MB
> (3m50) ratio =3D 3.5
> Ogg Vorbis, quality=3D6 ("audiophile" qlty) : 41.4 MB
> (3m40) ratio =3D 8.9
>
> Lossy compression, "medium" quality
> MP3 128kbps FraunHofferIIs : 31.0 MB
> (1m12) ratio =3D 12
>
>
>
> File 2 (noisy seabirds colony, stereo, 48 kHz, 16bit 15m48)
> Raw file .wav PCM: 178 MB
>
> Lossless compression
> Flac, compression level =3D5 : 83 MB (
> 40s) ratio =3D 2.1
> Flac, compression level=3D8(max) : 82.8 MB (2m) =
ratio =3D 2.1
>
> Lossy compression but really good quality
> Ogg Vorbis, quality=3D10 (max) : 51.2MB
> (1m50) ratio=3D3.5
> Ogg Vorbis, quality=3D6 ("audiophile" qlty) : 20.1 MB
> (2m) ratio=3D8.8
>
> Lossy compression, "medium" quality
> MP3 128kbps FraunHofferIIs : 14.8 MB
> (30s) ratio=3D12
>
> (test performed with an AMD 1.8 GHz - 512MB)
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