[colug-432] 24-bit Sound Input
tom at functionalmedia.com
Mon Dec 14 02:24:55 EST 2009
I am really happy with my edirol R-09HR.
It is a standalone recorder, 24 bit .
Perhaps something like that would give you what you need , and also
serve as a fun hand held recorder ?
I see it at $300 or so.
I think I found mine a little bit cheaper.
The level indicators are nice and visible, the built in mics, if you
ever used them, seem pretty good to me.
On 13 Dec 2009, at 01:02, Dave Maxwell wrote:
> On Sun December 13 2009, vince at planetvince wrote:
>> 2. Audacity has a auto level function I've used.
>> It looks at the entire file and then adjusts the level to the max
>> with no
>> clipping. Possibly this will eliminate the 24/16 bit issue.
> That is normalization and it should almost always be the final step of
> processing a given bit of audio. It doesn't solve the issue because
> 16 bit
> audio at 44 or 48 kHz is a final destination format at "CD
> quality". To get
> CD quality a given piece must be sampled such that the loudest peak
> in the
> piece is also the loudest sample that it is possible to take but no
> In practice, this can't be accomplished. You want that because you
> want the
> widest possible variation between the loudest and softest samples in
> recording. This is called "dynamic range".
> That is why I would play a record side a time or three to get as
> close as I
> could before actually recording. If however, I record and edit in
> 24 bit and
> set my levels such that I'm consistently hitting around 75% then I'm
> that I'm taking advantage of an amount of dynamic range that easily
> that possible in a 16 bit recording. And I wouldn't need to be
> fiddly about
> it. I only have to be consistently using in excess of 16 bits while
> the audio. If I normalize that THEN downsample to 16 bit I'll have a
> recording that will have both a reasonable filesize and excellent
> In analog terms, a 24 bit/=>48kHz recording is pretty like using 1-
> inch audio
> tape at a fast speed. If then master that down to an audiocassette,
> assured of taking advantage of the maximum a Phillips cassette can
> This is why a cassette you used to buy would pretty much always
> sound better
> than dubbing one off your friend's copy.
> Normalizing by itself doesn't create information. Dynamic range is
> one analog
> measure of a recording's information content or the ability of your
> equipment to reproduce it.
> Old MacDonald had an agricultural real estate tax abatement.
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