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Been using CamillaDSP for @ a year now and wanted to post an update. Here is a latency response from streaming stereo 192kHz lossless content from JRMC's CloudPlay over the net, into JRMC and then out into 64-bit CamillaDSP where it is split into 8 channels applying 8 x 64bit/256K tap FIRs, driver gain balancing and then output to an 8 channel USB DAC @ 176.4kHz on a 10-year-old CPU running Linux Kernel 5.16 which has low latency USB music driver upgrades. Max interrupt latency is 13 micro seconds with average considerably lower. I could never get anywhere near that in Windows. This includes multiple copies of multi-tab Firefox and other apps over full screen XRDP remote desktop (2560 x 1600) with an average CPU use of 5%. Pipewire and PulseAudio audio software stack is bypassed, writing straight to ALSA and the hw interface.

Corrected the link. https://github.com/geoffreybennett/scarlett-gen2/releases

FYI, Kernel 5.14 has a new alsamixer that supports Gen 2 and 3 Focusrite Scarlett devices for Linux users. The feature is disabled by default, but can be easily enabled. I have tested it with a 3rd Gen Scarlett 8i6 and it works. There is a new configuration/mixer GUI in the works as well, but hasn't been released yet. [url=https://github.com/geoffreybennett/scarlett-gen2/releases]Releases * geoffreybennett/scarlett-gen2 * GitHub[/url] Hope this helps some of you.

Don't know if this is the correct forum to post this. Please move if there is a more appropriate place for PC/Server Parts. I just wanted to share a recommendation for the new Phanteks T30-120 fan. I recently built a new music PC and used a Noctua heat pipe cooler. Noctua fans have had very high praise for airflow and low sound. Phanteks has now entered the fan market and has given Noctua a run for its money with their new T30-120. I replaced the Noctua fan with the Phanteks T30-120 and it is quieter than the Noctua and pushes more airflow. It has more static pressure which means it can push more airflow through the fins of the heat pipe coolers. On top of that, it has a 3-way switch in the side of the magnetic bearing motor housing that allows you to put it in low speed, standard mode or high speed mode which places its performance in the league of Noctua's INDUSTRIAL fans (which are only offered in 24V). NOTE: INDUSTRIAL mode is not as quiet for either brand. On my rig, when it is in low speed mode, the heat pipe is sufficient by itself (fan completely off) for normal loads and music playback/convolution duties. When loads increases, it turns on and is virtually silent. The 3-way switch is very convenient because it doesn't require inserting restrictions in the power lines like what other fans require for low-speed mode. Just flip the switch and you can select between 3 different operation profiles. It also has a pigtail so you can daisy-chain multiple fans off of a single header so they operate as a single controlled fan. This is useful if you have a double or triple fan cooled radiator or heat pipe, or multiple case fans without having to run multiple lines and have multiple headers. So far, I highly recommend it for those that need some low-noise airflow under high loads (or normal loads).

Miska, Thanks for the information. FWIW, I tried the Intel-Microcode patch on my older system yesterday. The last beta BIOS update for my Gigabyte Mobo was in 2017 and it appears the 2021 Intel-Microcode patch had some Intel updates from 2019 for my specific CPU. I went with the beta Gigabyte BIOS because it had undocumented support for PCIe/NVMe boot drives specific to my old IvyBridge MoBo model. I was able get a 4X NVMe speed boost over SATA/SSDs until I get a newer system that officially supports NVMe. The microcode patch doesn't appear to have broken anything so far and it looks like it picked up 2 more years of support from Intel.

Hi Miska, Do you have any feedback on the lastest CPU Vendor microcode updates (from 2021) for Linux distros with respect to performance ? e.g. Debian Package: intel-microcode (3.20210608.2) [non-free] - I have looked through the docs on this one and it appears to include mostly threat mitigations. Also, FWIW, the newer Linux Kernel 5.14 supposedly has lower latency USB music driver enhancements https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.14-USB-Audio-Latency and Linux Kernel 5.15 incorporates complete NTFS support from a previously proprietary paid package from Paragon Software. https://www.techrepublic.com/article/ntfs-support-gets-a-significant-boost-in-linux-kernel-5-15/ Thanks much.

Hey Skip, I am not aware of the existence of a centralized document yet. It appears to be spread out across multiple threads and URLs. I would suggest that you start with the GitHub main directory link in the OP and read each sub links. Start with camilladsp and camilliadsp-config for a good overview. CamillaDSP can be run by hand (for debugging config scripts), as daemon automatically started at boot, or nested in the automatic rate switcher wrapper. I would suggest the by-hand version first until you have your scripts correct. I have not ventured into the Web Controls yet or the moOde specifics. Keep in mind that feature scalability is directly related to the iron it is running on so if it is running on a RasbPi, expectations have to be set accordingly compared to a i7 or i9 processor.

Just wanted to share a new opensource project that I recently discovered. It runs on Windoze, Linux and Mac. I have been testing it as a plugin to ALSA in Linux and am quite impressed with it so far. Kudos to the sharp author. PulseAudio can also be configured to use it as default so all of your Linux desktop apps get the filters transparently. It creates stream and filter pipelines so it can be applied to a variety of situations. There are also provisions for remote controls that I haven't explored yet. It is in its last beta stage and soon to be a formal 1.0 release. It is limited to a single sample rate (unless you use their resampler), but there is a auto-sample change rate plugin wrapper that allows automatic sample rate switching without resampling (if you like to go native). I have tested it with [44.1 to 384]kHz rates with no issues so far. I have moved my JRMC convolution filters down into the CamillaDSP ALSA plugin which has eliminated the intermittent track startup pop/clicks in the Linux version of JRMC 26 and 27 that I have been experiencing. Quick summary For Linux, macOS and Windows Written in Rust (next version of C++) IIR filters (BiQuad) FIR filters (Convolution via FFT) Built-in sample rate converter Filters can be chained freely Flexible routing Alsa, PulseAudio, Wasapi, CoreAudio, File and stdio input/output Simple YAML configuration All calculations done with 64-bit float Main discussion thread: camilladsp-cross-platform-iir-fir-engine-crossovers-correction Github main directory: Root Directory for CamillaDSP Github auto data rate switcher main directory: Automatic Sample Rate Switcher Plugin

FWIW, this review of the Z490 mini-ITX boards indicate the MSI and Gigabyte boards have the strongest VRM implementations for OCing, but indicates it is not necessary for normal stock speeds. I wonder if the stronger VRM power designs equates to better sound when underutilized.

Any feedback on your i9-10900 / ASUS machine ? I am considering updating my old machine with either the i9-10900 or i9-10900K, a Z490 board and NVMes. TIA

Hi Kal, Will there be any reviews on the OKTO DAC8 coming out soon ? If so, any ETAs ? TIA

Get your OPPO's while they last. Oppo's Farewell Notice Oppo has just held in it's notice Oppo Shock: Popular AV Brand Announces That 'It's Time To Say Goodbye'

Has anyone used the DVDfab "Hi-Fi Audio Converter" software for ripping 2-channel audio from DVDs/Blu Rays ? If so, how does it work ? TIA DVDfab Hi-Fi Audio Converter

You can't go wrong with the consistency of hard wire.

Interesting video on bit depth, sample rates and filters. https://xiph.org/video/vid2.shtml