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Forum index » Science and Technology » Physics » Acoustics
Recommendation needed for portable wideband recorder
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TheGhost
science forum addict


Joined: 09 Aug 2005
Posts: 85

PostPosted: Fri May 19, 2006 1:51 am    Post subject: Recommendation needed for portable wideband recorder Reply with quote

I have found a nice house to haunt and don't like to travel. The immediate
problem is that I need to have an out-of-state client make and record some
measurements and send the recordings to me to analyze using equipment that
is not easily transported. A walkman type DAT machine would be ideal, but
20KHz signal bandwidth is grossly inadequate. I need some sort of portable
or semi-portable recorder that has 12-bit dynamic range and a 50KHz (100KHz
preferably) signal bandwidth, with built-in anti-aliasing filter(s). I
have both Racal and Bruel & Kjaer instrumentation recorders, but neither is
exactly "portable" as far as today's standards are concerned. Only a
single channel and 2-3 minutes of recording time are required. Signal
level is +/-3Vpeak. Any recommendations?
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Asbjørn
science forum beginner


Joined: 09 Aug 2005
Posts: 9

PostPosted: Fri May 19, 2006 2:56 pm    Post subject: Re: Recommendation needed for portable wideband recorder Reply with quote

"The Ghost" <theghost@hotmail.com> wrote in message
news:gw9bg.111535$pd5.82385@fe03.news.easynews.com...
Quote:
I have found a nice house to haunt and don't like to travel. The immediate
problem is that I need to have an out-of-state client make and record some
measurements and send the recordings to me to analyze using equipment that
is not easily transported. A walkman type DAT machine would be ideal, but
20KHz signal bandwidth is grossly inadequate. I need some sort of
portable
or semi-portable recorder that has 12-bit dynamic range and a 50KHz
(100KHz
preferably) signal bandwidth, with built-in anti-aliasing filter(s). I
have both Racal and Bruel & Kjaer instrumentation recorders, but neither
is
exactly "portable" as far as today's standards are concerned. Only a
single channel and 2-3 minutes of recording time are required. Signal
level is +/-3Vpeak. Any recommendations?

Have you considered using a laptop with a good external soundcard with
sampling frequency 96 or 192 Hz, e.g. FireFace ?

Asbjørn
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Angelo Campanella
science forum Guru Wannabe


Joined: 08 May 2005
Posts: 226

PostPosted: Fri May 19, 2006 10:22 pm    Post subject: Re: Recommendation needed for portable wideband recorder Reply with quote

Asbjørn wrote:
Quote:
"The Ghost" <theghost@hotmail.com> wrote in message
news:gw9bg.111535$pd5.82385@fe03.news.easynews.com...
20KHz signal bandwidth is grossly inadequate. I need some sort of
portable
or semi-portable recorder that has 12-bit dynamic range and a 50KHz
(100KHz
Have you considered using a laptop with a good external soundcard with
sampling frequency 96 or 192 Hz, e.g. FireFace ?

I agree that it is time to examine closely the sound board/hard rive
approach to sound recording.. (Many children are walking around with
more bandwidth and drive space than we adults ever dreamed of a few
years ago).

Ang. C.


Quote:

Asbjørn

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Peter Larsen
science forum beginner


Joined: 27 May 2005
Posts: 25

PostPosted: Sat May 20, 2006 6:24 am    Post subject: Re: Recommendation needed for portable wideband recorder Reply with quote

Angelo Campanella wrote:

Quote:
Asbjørn wrote:

"The Ghost" <theghost@hotmail.com> wrote in message
news:gw9bg.111535$pd5.82385@fe03.news.easynews.com...

20KHz signal bandwidth is grossly inadequate. I need some sort of
portable
or semi-portable recorder that has 12-bit dynamic range and a 50KHz
(100KHz
Have you considered using a laptop with a good external soundcard with
sampling frequency 96 or 192 Hz, e.g. FireFace ?

I agree that it is time to examine closely the sound board/hard rive
approach to sound recording.. (Many children are walking around with
more bandwidth and drive space than we adults ever dreamed of a few
years ago).

Fostex FR2 is better than semi-portable and does 24-96 to flash card.
Seems to be a decent approximation to the questionee's wished stats. It
even sounds good when used for location music recording.

Quote:
Ang. C.


Kind regards

Peter Larsen

--
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* My site is at: http://www.muyiovatki.dk *
*******************************************
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