Lostin70s

Audio Plugins for guitarists

About Lostin70's


Lostin70s

The goal of Lostin70s is to develop audio plugins with vintage spirit for musicians. Plugins can be used in post-production but they are conceived for live playing to replace hardware amplifier and effects at home or in home studio. The reduction of end to end delay is the key to the pleasure of playing !

The first plugin to come is a full tube amplifier, the ToneDeluxe, more plugins are coming soon, keep online ...

All plugins have been tested under "reaper" and under "garage band" on 64bit PC

Chord Grid Editor


Lostin70s

Chord Grid Editor is a Free online tool to create / edit/ share/ embed guitar chords grids.

Chord Grid Editor include an automatic chords recognition useful for beginners in jazz notation

Tested On Chrome V55

Go To Chord Grid Editor

tone deluxe amplifier


Lostin70s

The ToneDeluxe is designed as a full analog tube amplifier from preamp stage to cabinet. Based on ECC83 and EL34 tubes, its analog time model design allows to reduce the delay of the signal processing and thus give a "pleasure of playing" for guitarists. It offers two independent channels : clean and high gain. The high gain chanel is versatile thanks to the DriveTone setting that cut/boost high frequency before the tone stack.

New version 1.0.1 (improve compatibility with 96 kHz and framelength up to 8192)
New version 1.0.2 (solve crash or no sound issue at 64 sample)
New version 1.0.3 (Improve stability ++ , Allows multiple plugin instances in DAW)
New version 1.1.0 support 32bit VST and VST3 format (Improve stability again --> static memory ) New version 1.1.1 with Mac VST, increase compatibility tests, improve stability and DAW tests


Features

  • Two channels with independent gain/volume
  • ECC83 & EL34 simulation
  • Based on analog time model
  • Full tone stack
  • Drive is volume responsive
  • Two springs reverb models
  • Five cabinet models

Donwload

Lostin70s Lostin70s

Audio Samples


Video Samples

Technical Stuffs

What did the VST emulate ?

From the input, there are several independent modules:
  • The plugin resamples 96 kHz input to 48 kHz (44.1 are let at it is). Its mainly due to processing time as the plugin work in time domain, doubling the input feq double the time processing.
  • The first emulated module is a preamp stage controlled by "gain" button, it emulates a preamp tube behavior using non linear time processing. The difference between clean and drive channel is only the gain range. There is no compressor but the tube transfer function add some compression at medium gain then distortion at higher gain.
    The "Drive Tone" is a "lowpass/highpass" filter, at 5, it does not affect the sound, at 0 it's a low pass filter, at 10 it'ss an high pass filter
  • The second module is the tone stack, it emulates a basic 3 knobs tone stack you can found in famous amplifiers of several famous companies. The circuit equation can be solved and we uses the analytic solution of this classic circuit to keep the amplifier in time domain. Has for real amp, acting on one high frequency knob modifies also the shape in middle and bass.
    The frequency response behavior of such tone stack can be observed with the nice tsc tool frome duncan's amp : ( go to duncanamps page )
  • The third module is the power amplifier which is based on a emulation of EL34 tube. With a preamp high and a "volume" knob high you can have power tube distortion. We consider than DAW can be used to reduce the volume after this stage (acting as an attenuator you can find in some amplifier). High "volume" knob with low DAW track volume will not sounds the same as high track volume with low "volume" knob.
  • The fourth module is the presence which is a an high frequency boost.
  • The spring reverb is the only process that uses transform domain, but only on its reverberate path, the direct part is still temporal, thus there is a delay between the direct and reverberate path. The spring module uses a frequency domain convolution method with real measured spring reverb impulse response, as the impulse response length is over 10 seconds, some tricks are used to achieve a low cpu convolution, these tricks are partially deactivated pressing the "HQ" button. There are two spring models, one with 2 springs and one with three springs. By setting the "reverbe" knob to 0, you deactivate the spring reverb process. This process is half the total CPU of the plugin.
  • The last module are the cabinet. As opposite to other amp plugin that uses transfer function, the cabinets response are given by IIR filters, it allows to reduce the end to end plugin delay (less than 2ms for this part). The 3 fist cab are well known 4 loudspeaker cab in pure british style with the microphone in axis and perpendicular for cab n° 1, in axis but at 45° for cab n°2 and out of axis for cab n°3. The cab n°4 is an american combo with 2 loudspeakers and the n°5 is a british combo with also 2 loudspeakers. These cabs have been selected for their tonale differences.
Cab response
Real Vs Emulated frequency response

CONTACT

Contact us.

Lannion, Britany, France

lostin70s@orange.fr


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