I was planning on using a topology that had the LM1973 in the *feedback*
loop
of the microphone preamp stage. Therefore, it would get its drive from
the output
of the mic preamp, after 40 dB or so of gain and attenuate it back to
microphone
level before feeding it to the inverting
|3. Adjust levels *before* the A/D to prevent overload while maximizing dynamic
| range. Most modern MD recorders have fixed gain *berfore* the A/D; not a
| good thing!
Absolutely. So you use the LM1973's you mentioned in a programmable gain
configuration, right? Are these parts quiet
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Here are some sites that have information on
Are referring to the CS5360 or the CS5334 ADCs? I think these chips
consume
~350mW. I assume that you mix 6-8 channels of analog down to 2, then
digitize. So with 6 analog channels, each with programmable gain (and
possibly eq), and the other circuitry and microcontroller you're well over
1/2
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So, what would the operator of this thing use
On the subject of building your own mixing system for MD, what do you find
lacking in commercially available mixers that would prompt you want to build
your own? I can see that battery power and small size could be requirements
not met by many mixers.
In addition to the requirements you
Curiously, I am currently contemplating designing a small digital mixer for
location recording (not specifically to MD, but entirely usable with
it). My day job is DSP design (both hardware and software) for recording
studio equipment (www.cedaraudio.com); my hobbies are performing and
Christopher Hicks wrote:
Curiously, I am currently contemplating designing a small digital mixer for
location recording (not specifically to MD, but entirely usable with
...
My project essentially comprises 8 XLR mic-line inputs, each with
switchable gain and phantom power. The resulting
|-Original Message-
|From: Timothy Stockman [mailto:[EMAIL PROTECTED]]
|Sent: Monday, July 30, 2001 6:40 AM
|Subject: RE: MD: Recording MDs with microphones...
|
snip
|
|1. Plug-in power for inexpensive, high quality electret microphones.
|2. Reduced number of physical controls through
On the subject of building your own mixing system for MD, what do you find
lacking in commercially available mixers that would prompt you want to build
your own? I can see that battery power and small size could be requirements
not met by many mixers.
Also, why add the A/D? Are MD's
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