DrumGizmo is an open source, multichannel, multilayered, cross-platform drum plugin and stand-alone application. It enables you to compose drums in midi and mix them with a multichannel approach. It is comparable to that of mixing a real drumkit that has been recorded with a multi mic setup.
Stand-alone, Lv2 and VSTi versions available
Open drumkit file format, allowing the community to create their own drumkits
Drum velocity, allowing for several different hit velocities for each drum
Multichannel output, making it possible to mix it just the way you would a real drumkit
Optional built-in humanizer, analyzing the midi notes, adjusting velocities on-the-fly
Stand-alone midi renderer, generating .wav files, 1 for each channel
Stand-alone midi input, making it possible to use DrumGizmo as a software sampler for an electronic drumkit
The audio file editor, baptised ‘Eisenkraut’, came into existence (as a scaffold) during a project class on audio programming in Java at the SeaM in Weimar. It is distinguished by a number of traits which makes it particularly interesting in the field of computer music: There are no restrictions with regard to the number of channels in a file, and there is an OSC interface via which the functionality can be extended, for example using the SuperCollider language. Possible applications of such extensions are the transfer of marker information or the maintenance of meta data for segmented files, the algorithmic editing (cut/copy/paste) of files, or the addition of your own sound transformations or special decoders (e.g. an MS matrix).
Crystal Mixer is based on the OpenAL engine surround sound mixer. It supports up to 8 direct output and input channels and up to 18 output channels through a 3D mixer. It works through the ASIO Driver API for versatility. It’s possible to use up to 15 customizable auxiliary effects. It is also possible to enable hardware acceleration with some sound cards.
Multichannel surround sound support
Up to 8 native input and output channels
Up to 18 output channels mixing in 3D space
Auxiliary EFX and EAX20 effects
Reverb, Echo, Chorus, Flanger and others effects
Sound rotation and position changing
Source positions visual control with 3D view (OpenGL required)
The SpatGRIS is a plugin (Mac AU/VST and VST Windows format) designed to compose multichannel space. It allows the user to spatialize the sound in 2D (up to 16 speakers) or in 3D (up to 128 speakers) under a dome of speakers (with the ServerGRIS, available also on SourceForge). It includes two audio modes, — Free Volume and PanSpan — and one OSC mode. SpatGRIS is a fusion of two former plugins by the GRIS: OctoGRIS and ZirkOSC with a lot of new features. Automated Trajectories are included. It is possible to control it from external controllers such as Joystick, iPad or Leap Motion.
Three modes: Free Volume, Pan Span, OSC Spatialization
Aften is an audio encoder which generates compressed audio streams based on ATSC A/52 specification. This type of audio is also known as AC-3 or Dolby® Digital and is one of the audio codecs used in DVD-Video content.
Converts PCM source audio into AC-3 audio
Allows for setting of production metadata such as dialogue level, downmix levels, and extended bitstream information
Supports RAW, WAV, AIFF, and CAFF input file formats
Supports single multi-channel or multiple mono source files
Includes several optional pre-processing filters
Uses multi-threading and assembly optimizations to speed up encoding
foo_dsp_xover is a software digital crossover implementation that I have been working on for a while in my spare time as a hobby. It is a Foobar2000 audio player plugin that implements this digital crossover to achieve active multi-amplification.
This software needs to run on a WinXP PC equipped with a multi-channel sound card (e.g. 5.1 or 7.1 surround sound card) feeding the various voices of a multi-amplifier and loudspeaker active configuration set-up.
ANMP aims to be a versatile but lightweight audio player, just as the other hundred thousands out there. It is written in C++11. As being only a frontend, ANMP itself doesn’t know anything about audio formats and how to decode them. That’s why it uses 3rd party libraries to decode them. By using VgmStream, GameMusicEmu, LazyUSF and supporting looped songs natively, ANMP is esp. suited to play various audio formats from video games. Moreover it supports Looped Midi Tracks.
muting multichannel audio files
gapless playback (for most streamed audio formats)
arbitrary (forward) looping of songs (i.e. even nested loops)
This fairly simple tool converts all HeSuVi 14 channel presets into 7.0 formatted _L/_R stereo pairs, for use with the soon to be updated PulseAudio module-virtual-surround-sink, which I’ve updated with a faster FFT overlap-save convolver, eliminated the sample length limits for impulses, and added support for asymmetrical/dual impulse mode.
ChucK is a programming language for real-time sound synthesis and music creation. It is open-source and freely available on MacOS X, Windows, and Linux. ChucK presents a unique time-based, concurrent programming model that’s precise and expressive (we call this strongly-timed), dynamic control rates, and the ability to add and modify code on-the-fly. In addition, ChucK supports MIDI, OpenSoundControl, HID device, and multi-channel audio. It’s fun and easy to learn, and offers composers, researchers, and performers a powerful programming tool for building and experimenting with complex audio synthesis/analysis programs, and real-time interactive music.
Linear phase is a property of a filter, where the phase response of the filter is a linear function of frequency. The result is that all frequency components of the input signal are shifted in time (usually delayed) by the same constant amount (the slope of the linear function), which is referred to as the group delay. And consequently, there is no phase distortion due to the time delay of frequencies relative to one another.