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Homebrew Recorder

Subject: Homebrew Recorder
From: "sainganrob" sainganrob
Date: Thu May 31, 2012 3:49 pm ((PDT))
Hello again to all. First post to the group after a 4 year absence!.

Anyway, here's the thing. I'm lucky enough !? to work for an audio mixer ma=
nufacturer and for sometime have been thinking about knocking up a 2 channe=
l recorder specifically aimed at nature recording for myself. So, I've sort=
 of settled on the following spec. and was hoping the group could give it t=
he once over and make any suggestions re- omissions / alternatives etc.

thanks Rob.

2 channel
dynamic / phantom /pip
switchable front end gain 30/40/50/60dB
2 x analogue fader control. mute to +20dB(gangable for stereo)
2 x switchable analogue high pass filter
separate MS decoders for input and headphones (width control on input)
analogue peak limiter (gangable for stereo)
switchable 48/96kHz - 16/24 bit ADC
pre-record buffer (5 sec. ?)
1kHz / 0dBu (ref. 0.775V) reference tone
internal slate / metadata microphone
internal solid state drive 128 GB (FAT32)
file format - uncompressed .wav
usb 2.0 file transfer (and maybe 192kHz streaming audio for external ultras=
ound pc recording)
monochrome oled display - batt. status / audio levels / SSD capacity
no menus
2 x XLR-3F audio in
1 x XLR-4M ext. pwr. in
1/4" headphone jack
4 x AA battery compartment
machined aluminium chassis
glove operable switches / faders
freq. resp. 20Hz-20kHz flat
-128dBu e_in 20kHz BW unweighted (ref. 0.775V) / 150R source / 60dB gain
118dB dynamic range / 30dB gain
-40 / +80 deg.C operating temp.

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