Gear / Technical Help > Recording Gear

Home-brewing a high resolution audio-recorder, anyone?

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kleiner Rainer:
found this some days ago:

http://www.vlsi.fi/en/support/evaluationboards/vs1005devboardextension1.html

    Records up to 96 kHz 24-bit stereo PCM to SD Card
    Maximum tested SD card capacity 256 GB
    Uses VS23S040 as a 4-Mbit audio buffer
    Graphical user interface
    Uses stdaudioin so can be configured to use either VS1005's own ADCs or external ADC
    Dynamic range 98 dB(A) with VS1005's own ADC
    For longer recordings, can split audio to multiple 2 GB files with zero sample loss, overcoming FAT32 file size limitations
    Recording time on 64 GB card from over 30 hours (96k/24b) to over 92 hours (48k/16b)
    Automatic file system recovery if power is lost while recording
    Full source code available

Manufacturers forum:

http://www.vsdsp-forum.com/phpbb/viewtopic.php?f=13&t=2210


Greetings,

Rainer

illconditioned:
Looks good.  275 Euro for development board.  (+ analog break out board needed)?
It says up to 5 channels.  That is interesting...

In the meantime, how about a Raspberry Pi with a standard USB device attached.
Write to external USB.

The only problem is making sure USB card, if disconnected, keeps/recovers the recording.
 

Limit35:

The Pi is doable. You can record 24 bit 96k stereo WAVs from the command line to a max size 32GB micro SD, it could be a simple bit bucket behind a pre. arecord will automatically split the file at 2GB also. It could be as basic as one button to start arecord, one to stop the process, and a light while arecord is active.

Doing it that simple you would need to understand what your levels would need to be going into the Pi. I've never tried this but the tools and functionality are there in the simplest sense from the command line.

heva:
Pi is certainly doable, does need some care to prevent clicks/pops/dropouts.
Using it with an Echo2 USB interface, controlling the pi3 by iPhone [with ssh] over Wifi; stunning sound.

Limit35:
Wow, that is awesome.

Sorry to thread hijack. What are the click/pop/dropout issues with the Pi, connections I assume?

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