voice recording range on mp3 players

[KnightRdrX]

Hi, I don't know if you all know about these.
I want to buy the Creative MUVO 256 mb mp3 player.
To use for jogging and to record my teacher during class.
What is the range of the built in mic?
Do you know?
If i'm sitting 20 feet from the person speaking, will their voice be recorded?
Will it pick up the sound while in my pocket?

Or is this really a dictaphone to taking personal memos

[Michael R. Kesti]

KnightRdrX wrote:

>Hi, I don't know if you all know about these.
>I want to buy the Creative MUVO 256 mb mp3 player.
>To use for jogging and to record my teacher during class.
>What is the range of the built in mic?
>Do you know?
>If i'm sitting 20 feet from the person speaking, will their voice be recorded?
>Will it pick up the sound while in my pocket?

Microphones never EVER have a characteristic that defines the distance
at which they will record a sound. They instead have a sensitivity to
the pressure level of the sounds that reach them. Whether a person speaking
at a distance of 20 feet will be adequately recorded while the mic/recorder
is in a pocket depends on the sound pressure level that reaches the mic and
the sensitivity of the mic and the gain of its amplifier.

I believe that the thing that makes people believe that mics have a "range"
characteristic is that microphones can be constructed to be directional.
That is, they can reject sounds that arrive from their side or back while
not rejecting sounds that arrive from their front. This makes them appear
to reach out to sounds from the front, but this isn't really the case.
Instead, it allows one to increase the mic's amplifer gain to increase
the level of desired sounds without increasing the level of undesired
sounds.

>Or is this really a dictaphone to taking personal memos

I'm not familiar with this unit, but I suspect that the built-in mics on
any of its kind are best suited for dictaphone-type work.

--
================================================== ======================
Michael Kesti | "And like, one and one don't make
| two, one and one make one."
| - The Who, Bargain

[Chris Hornbeck]

On 21 Jul 2004 23:20:40 GMT, (KnightRdrX) wrote:

>Hi, I don't know if you all know about these.
>I want to buy the Creative MUVO 256 mb mp3 player.
>To use for jogging and to record my teacher during class.
>What is the range of the built in mic?
>Do you know?
>If i'm sitting 20 feet from the person speaking, will their voice be recorded?
>Will it pick up the sound while in my pocket?
>
>Or is this really a dictaphone to taking personal memos

Your real limitation may well be the fatigue level of the echo-y
reverberant recorded sound. Depends on the room you're in,
of course, but recordings sound different than being there
in person. Can you sit the gadget near the teacher?

So, is your "KnightRdr" from the Romero movie? Cool beans.
It's surprising that someone in school would have heard of it.

Chris Hornbeck

[KnightRdrX]

Romero movie? which movie is that?
no Knight Rider the tv show...
KNGHTRDR is also my license plate.

I kept the 'X' in there because
Paul XXXXX was my original screenname because Paul 5242342 sucked...

[Chris Hornbeck]

On 22 Jul 2004 03:45:44 GMT, (KnightRdrX) wrote:

>Romero movie? which movie is that?
>no Knight Rider the tv show...
>KNGHTRDR is also my license plate.

1981 was a long time ago, but Romero's _Knightriders_ seemed
important at the time and sunk without a trace. Ed Harris as
a charismatic touring troupe leader trying to maintain an
impossible ideal. Very 1981 if you're geezery enough to dig
postwar vibe. DVD rumoured for this summer.

Chris Hornbeck
"Vote or Die" - P. Diddy

[Mike Rivers]

In article > writes:

> Whether a person speaking
> at a distance of 20 feet will be adequately recorded while the mic/recorder
> is in a pocket depends on the sound pressure level that reaches the mic and
> the sensitivity of the mic and the gain of its amplifier.

Even more important when it comes to recording speech is the
intelligibility. At 20 feet in a typical classroom, the mic will be
well into the reverberant field and even if there's sufficient
amplitude, the recorded speech may be difficult to understand.


--
I'm really Mike Rivers )
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