Synthv1

synthv1 is an old-school all-digital 4-oscillator subtractive polyphonic synthesizer with stereo fx made by rncbc aka. Rui Nuno Capela.

synthv1 is free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

The software requirements for build and runtime are listed as follows:

Mandatory:

   Qt framework (core, gui, xml), C++ class library and tools for cross-platform application and UI development
   http://qt.io/

Optional (opted-in at build time):

   JACK Audio Connection Kit
   http://jackaudio.org/
   ALSA, Advanced Linux Sound Architecture
   http://www.alsa-project.org/
   LV2, Audio Plugin Standard, the extensible successor of LADSPA
   http://lv2plug.in/
   NSM, Non Session Management
   http://non.tuxfamily.org/nsm/
   liblo, Lightweight OSC implementation
   (needed for NSM support)
   http://liblo.sourceforge.net/

This synthesizer is made for alternative DAW producers.

HOW I DID

To use synthv1, you must download QJackCTL which will allow you to connect a virtual keyboard (that you also have to download) to the synthv1 app.

QjackCtl is a simple Qt application to control the JACK sound server daemon, specific for the Linux Audio Desktop infrastructure.

Written in C++ around the Qt framework for X11, most exclusively using Qt Designer.

Provides a simple GUI dialog for setting several JACK daemon parameters, which are properly saved between sessions, and a way control of the status of the audio server daemon. With time, this primordial interface has become richer by including a enhanced patchbay and connection control features.

QjackCtl is free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

Project page: http://sourceforge.net/projects/qjackctl

download link : [1]

virtual keyboard example :

Jack Keyboard link : [2]

In AUDIO part :

Connect synthv1 with System

In MIDI part :

Connect your Virtual Keyboard (out) to SynthV1 (in)

Now you can hear sound when pressing keys on the computer keyboard.

Modify your sound by using the tools of the interface.