Kyle, not to worry. If you recorded in 24 bit, you have 'over'
recorded for your CD project, and it's as simple as downconverting
your sounds into 16 bit. Be aware that there is a process called
'Dithering' that you'll most likely want to apply when you convert.
I also wouldn't convert into MP3 at all. MP3 isn't as good of a
quality as a CD, so in fact you took something better than a CD,
converted it to something worse than a CD, and then converted 'that'
to CD quality.
It's probably a good idea to record 44.1 if your end goal is a CD.
But the 24/16 bit thing isn't as much of an issue. True, recorded at
24 bits, it won't go directly to a CD, but it's an easy and fast
conversion to 16 bit, via software. But avoid the MP3 before you burn
a CD. Save MP3 for putting your sounds on the internet.
Reminds me a thread I was just reading, where someone had an 88
minute sound he wanted to put on a CD, so he converted his 44.1 sound
to 22kHz, thinking his CD would now hold twice as much, and then
became irate when his CD burning software 'upsampled' his track back
to 44.1
CD's are always, and can only be, 16-Bit and 44.1 kHz, if it's a true
'audio' CD. There aren't any other options.
On May 19, 2007, at 9:34 AM, Kyle Keegan wrote:
> I recently purchased a Nagra Ares bb+ and I am currently using it with
> a Telinga Pro 6 Stereo Dat mic. The subject of the majority of my
> recordings are birds. I am in the process of recording common species
> of Northern Ca to produce (hopefully) a CD to help raise money for a
> local rural, private one room school house as well as promoting
> awareness of the conservation and appreciation of the local birds in
> our area. Last year I spent a week at a recording workshop put on by
> Cornell/ Macualay Library of Natural Sounds and they rated the Nagra
> as their absolute #1 choice in recorders. I am very pleased with the
> Nagra/ Telinga mic combo.
>
> Last week I contacted Nagra and asked them questions regarding 24 bit
> recordings vs 16 bit as well as 44khz sampling frequency vs 48 khz.I
> was surprised to be informed by Nagra that a 24bit recording will not
> play on a Cd player. They also informed me that consumer grade CD's
> are recorded at 44.1 khz and I should stick to that. As soon as i
> finished reading the email response, I hooked the Nagra up the my PC
> and downloaded some 24 bit recordings, compressed them into MP3 format
> and burned them onto a CD and it worked.
>
> I am wondering if anyone has advice in regards to this? I have spent
> an enormous amount of time recording in 24 bit/ 44khz setting and I am
> hoping that I didn't blow it. The quality of the sound is especially
> important to me in order to represent the species of focus clearly and
> with richness.
>
> Sincerely,
> Kyle Keegan
>
>
>
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