Home

Welcome to the alsa-midi-latency-test wiki!

For benchmarking results see "Pages" on the right side of this page.

User Experiences - Archive

2015

• Elia - MIDI PCI card with Envy24 chip and M-Audio Audiophile 2496
• More to be written..

2014

• Elia - MIDI Through virtual device loopback test
• Elia - Precision Measuring Instruments : reference MIDI hardware
• Elia - Wireless MIDI performance : CME WIDI X8

2013

• Robin Gareus - Utility to measure jackaudio MIDI latency see http://rg42.org/wiki/midilatency for more details
• Andre Majorel - LAU: ESI Romio II and alsa-midi-latency-test failure

2012

• Silicon Stuff - Serial Port MIDI on the Raspberry Pi

• Clemens Ladisch - comp.audio.jackit: MIDI support for OpenBSD?

  (The primary purpose is not so much measuring the hardware but the kernel's maximum scheduling delay. The UM-2EX results were done on a very optimized kernel.)

2011

• Silicon Stuff - Raspberry Pi Synthesizer
• WARPWOOD Wiki
• Mentoj Dija - cheap usb-audio-interface

2010

• drummerforum.de
  • siktuned - Asio 4 all mit addictive drums problem mit latenz
• ffado.org
  • IRQ Priorities How-To
• 64studio-users
  • Ralf Mardorf - PCI MIDI jitter - comparison Ubuntu (bad) and Suse (might be ok)
  • Ralf Mardorf - 3.0b and 3.3a amd64 MIDI latency test for several kernels
  • Ralf Mardorf - USB Device 0x170b:0x11, TerraTec EWX24/96
  • Ralf Mardorf - Correlation of alsa -p value and hw MIDI jitter
  • Ralf Mardorf - MIDI jitter - Today for 4 of 4 tests my USB device did pass all tests
  • Ralf Mardorf - ALSA MIDI latency test results are far away from reality
• ubuntu-studio-users
  • Ralf Mardorf - Real time for Ubuntu Studio 10.04 amd64
• Blog Posts
  • Matt Wheeler's Blog - Putting -rt kernels first in grub2

2009

• rt.wiki.kernel.org
  • Geunsik Lim - Worstcase Latency Test Scenario
  • various - Systems based on Real time preempt Linux
• 64studio-users
  • geoff - MIDI timing

2000

• Benno Senoner - Linux v2.4 - scheduling latency tests / high performance low latency audio