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Public science and art academy in my country recorded a lot of interviews on DAT digital tapes, which are now in the process if being digitised. The casette rea
by jesprenj 4y ago
Public science and art academy in my country recorded a lot of interviews on DAT digital tapes, which are now in the process if being digitised. The casette reader, however, does not report error metadata via any reasonable means, so it was modified a long time ago to report errors to an external device.
Wires are connected directly to the PCB of the casette player so that with the help of the external device, metadata about the errors when reading can be stored. But the external device (DATerr/DATerrMON/DATerrLOG) is ancient. It's not mentioned in Google's search results, luckily there was a copy of the printed manual somewhere.
It talks via RS-232 to a regular office computer from the ninetees running windows 95 to an application running in DOS mode.
It's time to modernize the setup, as currently the win95 PC's disk already failed and had to be replaced. Luckily the program works perfectly under DosBOX, but the environment has to be tweaked a bit (NumLock must be on, or the program hangs, etc :))
Edit: I said windows 93 instead of (probably) 95.
- Fatnino 4y agoAre you sure you mean windows 93? Not, say, 95?
- snvzz 4y ago>on DAT digital tapes, which are now in the process if being digitised. DAT tapes are, as you mention, already storing digital data to begin with. Rather than "digitised", the data should be copied to modern storage as-is.
- jesprenj 4y agoReading the quoted sentence really is weird (:
- justsomehnguy 4y agoMy guess (never worked with DAT) is what they have them in audio format, not DDS, which is digital but... Judging on some cursory search[0] the only way to transfer the audio is to hook the drive through S/PDIF and play the whole tape. Looks like the ability to treat audio as the data (similar to the way we can treat AudioCDs as just a data disk filled with PCM) is rare and not quite the official [1] [0] https://web.archive.org/web/20071007220855/http://homepage.ntlworld.com/adrian.rixon/personal/ade/dat-dds/overview.html https://web.archive.org/web/20071007220855/http://homepage.n... [1] https://web.archive.org/web/20071102094856/http://web.ncf.ca/aa571/dat2wav.htm https://web.archive.org/web/20071102094856/http://web.ncf.ca...
- snvzz 4y agoThe drives with DDS support might be rare, but they're the only correct way to extract audio for preservation. Open Source software exists[0] for the purpose. 0. https://github.com/andrew-taylor/read_dat https://github.com/andrew-taylor/read_dat
- justsomehnguy 4y agoThe other way - a DDS drive with DAT support. Anyway, you now need to acquire such drive, get to @jesprenj institution, tell them they are doing it wrong, threw out the current setup, replace the drive and the 'recording' station.... With a 30 y.o. tech which is obsolete for 20 years it's all.. questionable.
- jesprenj 4y agoI was told they are capturing digital data. But I have no idea how, I was just trying to make sense of the error stream coming from the hacked drive. Next time I'll check if they use SPDIF or what. But the drive is a consumer-grade Sony. Shame I didn't take note of the model.