I've long been vaguely interested in experimenting with DRC, but whenever I read about Inguz it looked a bit daunting. Added to that, my LMS runs on a Raspberry Pi 3, so there's no chance of doing the necessary processing at the server end.
I seem to recall some discussions here about whether the HiFiBerry DSP cards could be used for this purpose. (Sorry, but I've done some forum searches and couldn't find the thread, but am pretty sure I'm not imagining it). So I've been experimenting with HiFiBerry's Raspberry Pi DIGI2 Pro SPDIF card and DSP add-on board. I can confirm that it's fairly straightforward to load the necessary filters into the DSP card, and when you reboot the Pi using another operating system (eg. piCorePlayer), the filters are still active. I would assume that the same would be true if you use the HiFiBerry DAC+DSP or Beocreate card instead. (I use the SPDIF card because I have Meridian active speakers with digital inputs, so didn't need a DAC). What I did find is that some of the facilities provided by the HiFiBerryOS seem a bit unreliable. In particular, they use an old version of Squeezelite that has problems with delays and failure to pause/seek, so my initial plan to run HiFiBerryOS as my Squeezelite player didn't work out. Also, their (experimental) room correction feature didn't work for me. I ended up using Room EQ Wizard to calculate the required filters, then added those filters manually using HiFiBerryOS's parametric EQ page. After adding the filters, you need to go to the DSP Programs page and instruct it to store the settings in the DSP card. Once that is done, you can shut down HiFiBerryOS and reboot into piCorePlayer. This is just a heads-up that it does all work rather well, but if anyone wants some more details, let me know. Until recently: Transporter -> ATC SCM100A, now sold :-( House move forced change to: SBR SPDIF out -> Meridian 218 -> Meridian M6 ------------------------------------------------------------------------ cliveb's Profile: http://forums.slimdevices.com/member.php?userid=348 View this thread: http://forums.slimdevices.com/showthread.php?t=114806 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
