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Søren Abildgaard

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    Digital Believer
  1. For toslink there is the Lindy, but as far as I see, they do not do coax: 4 Way TosLink Digital Optical Audio Switch (up to 192kHz) | LINDY UK This one is without a remote control, but automatically selects the active source (assuming only one source is active): https://www.audioauthority.com/product_details/1177A This one has remote and 4 coax - if you need more, you could stack two of them ;-) DA4X | Inday More than 4 digital inputs is rare in consumer switches. Pro switches often do/allow additional processing - maybe not what you had in mind. And definitely heavy on the budget. Best, Søren
  2. I didn't preorder - waiting for first reviews. So I can only guess: 1-2 GB RAM + relatively powerful 1.6 GHz dual core ARM + msata & 2x USB 3.0 == usable home NAS & router?! Additionally, the ability to run a REGULAR os in the virtual machine simplifies running this as a small custom server - the amount of software available for openwrt is quite limited. You could run freenas on it (then it is really full 2-in-1). Or maybe a small Linux distro with minimaudio? Given that this router is developed by network security guys, I'm sure that the security aspect can play a role here, too. Last but surely not least, it has a SIM card slot, GPIO, I2C, and SPI - so you could connect it to control a myriad of possible hardware things in remote locations - weather sensors in remote location without cables - just a solar panel. And it can probably replace > 50 % of all dedicated lab computers. Etc. pp. Best, Søren P.S.: Or add a HifiBerry DAC+ ...
  3. What exactly is impressive here? What can I do with this that I cannot do with a couple or three Asus Ac66?
  4. Hi guys Anyone going for this open source router? I particularly like the idea of being able to run all kinds operating systems on the virtual machine - audio player anyone? https://omnia.turris.cz/en/ Best, Søren
  5. You will not get around playing the CDs in your setting, as it is not (without severe firmware hacks) possible to control the CD playing abilitiy of the AVM CS 2.2 from the computer (this is not the AVM's fault - I have never heard of such a functionality). On the computer side, you could use Audacity, but this would just record. You still need to trim, tag with meta data etc. Buying an external CD drive (not the smallest and cheapest one) is clearly the solution here.
  6. I would question whether this exact setup makes sense. From my perspective, the solution to what you want is a simple 2-box setup, where both are connected to the same network and one can be stored anywhere (physically): 1) A NAS with the SSDs (or other storage media), which can be placed anywhere. 2) An audio streamer with web interface and built-in DAC (optionally the DAC could be a separate box, too). Then you can access the shares of 1) to manage your library just as it was on your computer and go to the web interface of 2) to play your music. Separation of concerns - it is, of course, possibly to combine storage, player, and DAC into one box, but this does not seem the standard way nor would I think it is the best from a usability/performance point of view. Best, Søren
  7. The 2nd CD is from the original two CD release, available from Amazon for $15.28 incl. shipping. So no reason to be very sad. CDs 3 and 4 contain previously unreleased material - that would be more hassle to cheaply get replaced. BTW, cleaning / polishing can help as can a different CD drive.
  8. My M3VE can be installed in-wall - that made the deal. Was otherwise looking at a pair of some Genelec 8360 with the Atterotech
  9. P.S.: DigiPete would probably want to use this one to provide AES to his beloved Genelec's http://www.atterotech.com/products/dante-aes-o/
  10. Hi guys Been busy at work - but happy to discuss some Dante Dante is really just a bunch of protocols for binding PTP (precision timing protocol) and RTP (realt time protocol) together. Actually, Audinate (Dante's creators) is involved in the creation of AES67, which will be a (hopefully open) standard for distributing and controlling audio data and timing information over ethernet. The hardware supporting Dante is often still quite expensive. But the beauty is that everything can be used also without very expensive hardware. The Dante Virtual sound card allows you to send or receive (play or record) mono, stereo, or multi-channel audio of standard ethernet cables, switches, routers etc. This is just $30 per license per computer. If you want more routing functionality, you can buy Dante Via (haven't tried that because I don't really have a need) for $50 per license per computer. There are many things one could do with Dante. Fx. use virtual sound card on two computers - a small NUC or MacMini that "records" the music and outputs it to a DAC and another computer as the player (incl. heavy tasks such as converting, upsampling etc.). Or one could buy this wonderful interface from Atterotech for approx. $750 that acts as a Dante endpoint and outputs to balanced stereo: Dante interface - Dante unD2XIO | Attero Tech Imagine Dante virtual soundcard on your computer and this baby in the wall behind your powered speakers or monoblocks+passive speakers. Talk WAF The only thing I'm a little sad about is that there does not seem to be any Dante/AES67 Linux implementation. Otherwise I would love a barebone Linux-based mini-NAA as a Dante endpoint Before I forget, to use Dante you need to also installe Dante Controller on some computer in the network - this is luckily free (as in beer). BTW, my background is not in Pro Audio - audio-wise I'm strictly an amateur. Professionally, I'm working in the big data IT sector in a position one could describe as CTO or CIO for a SME. In other words, I breathe IT systems and networking Best, Søren
  11. Thanks! After reading here for like 5 years, it us funny to be contributing actively Your ALAC script is great, as it seems to care only for the PCM data. For my purposes this will be hard to replicate on the synology, as it requires parsing ALAC files. My reason for staying in the synology is that I want to have it monitor the file integrity status regularly and notify me of any irregularities whenever they are detected.
  12. BTRFS automatically detects corruption, but repair is by redundancy like in any other raid configuration. And being paranoid, an extra level cannot hurt.
  13. Hi guys! With all my music digitalized and on my big Synology NAS, I'm starting to get worried about file integrity (aka bit rot). So I experimented on my small NAS (a well-aged Synology DS214se) with some scripts to generate and check MD5 sums. To this end, I manually installed md5deep from the ipkg feed (didn't feel like installing all of ipkg) from here: Index of /feeds/optware/cs08q1armel/cross/stable/ I just unpacked the data.tar.gz from the package and copied opt/bin/md5deep to /opt/bin/md5deep on my Synology. Then I wrote a little script to create and check the MD5 hash for a given file: #!/bin/sh echo -n "Processing $1 ... " if [ -f "$1.md5" ] then cp "$1" "$1.tmp" mv "$1.tmp" "$1" /opt/bin/md5deep -m "$1.md5" "$1" > /dev/null status=$? if [ $status -ne 0 ] then echo "FAILURE - hash value has changed" else echo "OK - hash values match" fi else /opt/bin/md5deep -b "$1" > "$1.md5" echo "FIRST - stored MD5 hash" fi Being my paranoid self, I also refresh the file by copying it to a new name and moving it back to the original name. This should refresh the bits nicely Finally, to check all WAV files on the "media" volume, I run the following command from my Mac Pro's terminal: ssh [email protected] -t "find /volume1/media/Music/ -iname '*.wav' -exec /opt/bin/regen.sh '{}' \;" | tee regen.log The log file contains FIRST for all files that were first seen and got hashed, OK for those where the computed hash matched the stored one, and FAILURE when there is bit rot (easily simulated by corrupting an .md5 file or a .wav file by hand). I thought about getting a NAS with ZFS or BTRFS support, but all I would use that for is checksumming - so that can be done just as well using my above script. And I like DSM too much What do you do to combat bit rot? Edit: If you want to know how to do this on your NAS, I can give more detailed descriptions. Just let me know.
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