Plugins, Plugins & More Plugins: Linux DSP MKII Graph-EQ

Announcement from Mr. LinuxDSP: LinuxDSP has recently released the MKII Graph-EQ. This is a significant feature upgrade to the original graphical eq, and not only adds a much improved user interface which shows individual frequency bands in addition to the main EQ curve, but also adds another type of parametric filter which uses innovative DSP processing to provide a de-cramped frequency response similar to analogue EQs.

Plugins offering similar functionality on other platforms can cost as much as $500 and sometimes require extra DSP hardware, which makes this plugin a very cost effective solution. Combine it with the MBC2 multiband compressor to provide a high quality mastering solution. It can be found here:

LV2 IR (Impulse Response) Convolution Reverb Plugin

Tom Szilagyi recently announced a working release of his new LV2 plugin, IR, about which he says "IR is a zero-latency, realtime, high performance signal convolver especially for creating reverb effects. Supports impulse responses with 1, 2 or 4 channels, in any soundfile format supported by libsndfile."

The feature list looks great:
  • Zero-latency convolution of impulse responses with stereo audio
  • Supports Mono, Stereo and 'True Stereo' (4-channel) impulses
  • Realtime operation
  • Very reasonable CPU consumption
  • Maximum impulse length: 1M samples (~22 seconds @ 48kHz)
  • Loads a large number of audio file formats
  • High quality sample rate conversion of impulse responses
  • Stretch control (via high quality SRC in one step integrated with impulse loading)
  • Pre-delay control (0-2000 ms)
  • Stereo width control of input signal & impulse response (0-150%)
  • Envelope alteration with immediate visual feedback: Attack time/percent, Envelope, Length
  • Reverse impulse response
  • Autogain: change impulses without having to adjust 'Wet gain'
  • Impulse response visualization (linear/logarithmic scale, peak & RMS)
  • Easy interface for fast browsing and loading impulse responses
  • Free software released under the GNU GPL v2

More information is available on the IR website. Tom thanked Fons Adriaensen for his work on zita-convolver and Erik de Castro Lopo for both libsndfile and libsamplerate, so we should too.

New features coming in Ardour 3.0

Ardour 3.0 is nearing its first alpha release. As usual, it has been available via SVN for those who want to build it from source during the entire development process, but we are now approaching the point where more user feedback will be useful in finalizing 3.0 before an official release. Below is a (growing) list of new features in 3.0, with links to individual pages that discuss them in more detail.

LinuxDSP Plugins Update

Forwarded from Mr. LinuxDSP ...

As announced recently on the linuxDSP website, the Pro-EQ, Dynamics and Gate plugins have recently been updated. We have recently been doing some work to improve compatibility with different distributions and out of the work done to improve functionality with Meego Linux several usability improvements have been ported back into the mainstream versions of the plugins.

Most notably, the plugin UI windows now open directly under the mouse pointer the first time they are opened, and subsequently remember their last on-screen window position. In Ardour, this means that the plugin UI now opens straight out of the mixer channel.

The plugin bundle includes mono and stereo versions of the Pro-EQ Pro-Dynamics and Pro-Gate plugins. These can provide channel Equalisation, Dynamics processing , Gate, Phase alignment, Switchable High Pass Filter and Gain in each mixer channel.

linuxDSP is one of the few, if not the only full-time commercial plugin developers to support the LV2 standard and these plugins bring DSP processing to Ardour and other compatible DAWs from developers who have over 20 years experience of the pro-audio industry and have previously worked with some of the worlds top pro-audio companies. The plugins can be found here:

An opportunity not to be missed.

Just another little feature added to Ardour 3

Trying to solve a bug with importing audio, I spent the last couple of days adding a new feature to Ardour 3 that many people have been asked about for quite some time. Historically, Ardour has always stored the names of the audio files in one of two ways. One would indicate that the file lived inside the session, and the other indicated that it lived outside, somewhere else in your computer's filesystem. This meant that if you ever moved the location of the external files, Ardour wouldn't be able to find them at startup, and if you wanted the session to work, you'd need to hand edit the session file.

Well, now this is no longer true. Ardour will use a search path for all the files (audio & MIDI) that it needs for the session, and if it can't find them as it loads the session, it will ask you where to look for them. You can also edit the search path from the session properties dialog.

Just another reason for us to hurry up with the first alpha release of Ardour3, coming soon.

"The Ecology of Ardour" - article by Dave Phillips

Linux audio documentarian (as well as swell guitar player, teacher, CSound wrangler and all around nice guy) Dave Phillips has written a very nice article for Linux Journal that describes "the ecology of Ardour", and covers a number of "off-screen" developments and collaborations that some readers might not be aware. Thanks to Dave for the nice article.

The State of Ardour3

Quite a few people have been asking about the status of Ardour3. The short story is that we are getting closer to a beta release every day, in large part thanks to the outstanding work of Carl Hetherington and also a small group of very dedicated and helpful testers. Almost of the basic functionality planned an initial release is in place, which means that MIDI recording, playback and editing is in reasonable shape for use and that the audio side has too many improvements to count or even list here in this modest posting.

Ardour 2.8.11 is released

Ardour 2.8.11 is now available. It contains only 1 change from 2.8.10, but its an important one:

  • Do not prevent transport operations after an export (and potentially at other times)

All users are strongly recommended to upgrade. Remember that if you have a subscription or paid for an earlier 2.8 version, and were logged into at that time, upgrades are free!

Mixbus and ArdourXchange

(this announcement comes from John Emmas, developer of ArdourXchange)

Owners of Harrison's Mixbus can now obtain a very cheap copy of ArdourXchange if they act quickly. Throughout July 2010 AxC will be on sale for just $20 (US) - that's less than half its normal retail price.

These Websites Are Members of the SEO Spam Hall of Shame

Listed below are URLs for websites that have arranged for people to come to this forum and post links to their sites, even though their sites are totally unrelated to Ardour, audio engineering or anything remotely related to what this site is about. Quite a few of them are probably scams as well. This post will be updated and their names will be added. Google is quite good at indexing You spam our site, we add your URL here.