Digilogue’s Sweet BlueLine Suite
Germany’s Marcus Stahlberg, operating under the Digilogue banner,
has been working on a new audio editing platform called Acoustic
Cutter, but his earlier foray into the world of digital audio came in
the form of a suite of 10 DirectX/VST processing plug-ins called The
Blue Line, all contained in a single compact installer file, which is
available for free. The plug-ins include BlueChorus, BlueCompressor,
BlueDelay, BlueFilter, BlueFlanger, BlueGate, BlueMultitap,
BlueParamEQ, BluePhaser and BlueReverb.
basic interface for each plug-in is the same. All controls appear as
virtual “faders,” with other options appearing as buttons. Each
plugin features the ability to save and recall presets, as well as
perform A/B comparisons. I preferred the fader-style controls to the
virtual “knobs” I’ve seen on many other plug-ins.
are at least two conventions regarding how to turn a “knob” with
a mouse, either up for clockwise and down for counterclockwise, or
right for clockwise and left for counterclockwise. I’ve even seen
ones where the knob has to be dragged using a circular motion. Faders
leave little guesswork.
layout of these plug-ins is reminiscent of the old rackmount
processors they replace, so they’re intuitive. The BlueChorus
chorus, BlueDelay delay, BlueFlanger flanger and BluePhaser phaser
operate very much like the old effect stomp boxes I used when I
played in a garage band about 100 years ago. The BlueParamEQ
parametric EQ is similar to what one might find on a large recording
console. The two midrange sections are truly parametric, offering
cut/boost, frequency and bandwidth controls; but the high and low
sections omit the bandwidth control. The BlueFilter filter
essentially is a single-band EQ, operating as any of several filters,
such as low-pass, high-pass and band-pass. It also includes a
low-frequency oscillator for more interesting effects.
BlueGate offers more surgical control of the signal than a
traditional noise gate, including individual adjustments for attack,
sustain, release and decay. The BlueCompressor compressor is
straightforward and easy to use and includes input, output and gain
BlueMultitap delay allows for up to eight separate delay signals, all
of which can be individually adjusted for level and pan. The
BlueReverb is a simple, bare-bones design, with six basic “spaces”
to choose from and fine tune with available time, diffusion and
sound quality on these plug-ins is good. The “stomp-box” effects
and the BlueChorus, BluePhaser, BlueFlanger and BlueDelay effects
were clean and smooth-sounding. My only complaint here was with the
delay. Adjusting some parameters while audio was playing generated
some popping artifacts. Keeping monitor levels low while making such
adjustments might be prudent.
BlueCompressor did its job well, but the gain reduction meter seemed
to lag a bit on transient material. The BlueReverb didn’t exhibit
any of the artifacts I’ve heard on other free reverbs, even on
transient sources. The
plug-in was a bit confusing at first and took considerable
experimentation to get the hang of, but certainly works as intended.
nice effort on the part of Herr Stahlberg, and a much appreciated
gift to the digital audio community.