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)
- Hardware Acceleration with native OpenAL driver
- 3D movement effects
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
- Automated Trajectories
- Up to 16 outputs in audio mode
- OSC Mode to control the ServerGRIS
- External controllers: Joystick, iPad. Leap Motion
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)
- synthesizing MIDI files using fluidsynth
- multi-channel audio rendering
- overlapping notes do not kill each other
- unrolling looped MIDI tracks
- volume response compatible to N64’s software synth
- supports an IIR lowpass filter compatible to Rareware‘s N64 games (Conkers Bad Fur Day, Jet Force Gemini)
- support for cue sheets
- support for audio normalization based on EBU R 128
- exposes basic commands via D-Bus
This tool imitates the 7.1 to binaural sound effect of many surround virtualizations by making use of Equalizer APO’s convolution filter. Available impulse response that were recorded with activated…
- Dolby Atmos Headphone
- SBX Pro Studio Surround (also found in BlasterX Acoustic Engine & THX TruStudio Pro)
- Dolby Headphone
- Sennheiser GSX Binaural 7.1
- DTS Headphone:X
- Windows Sonic Headphone
- Dolby Home Theater v4 Headphone Surround Virtualizer
- Razer Surround
- Out Of Your Head
- Flux HEar V3
- OpenAL and DirectSound3D HRTFs
- Waves Nx
- and many more!
- many different headphone surround impulse responses
- powerful graphic equalizer
- equalizer presets for over 1000 popular headphones
- use multiple devices on one sound card
- extensive control over different volume levels
- apply and save the processing onto your audio files
- fully configurable crossfeed
- quickly save & load profiles, even through hotkeys
- supports command line parameters for all options
- rearrange the virtual speakers’ positions
- intelligent stereo upmix
- portable installation with easy one-click updater
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.
Extracts bass from the source signal using a linear phase low-pass filter and sends it to the LFE channel.
- fast fir processing
- adjustable filter shapes
- delay control
- mono, stereo, 3.0, 4.0, 5.0 input support
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.
Wavosaur is a cool free sound editor, audio editor, wav editor software for editing, processing and recording sounds, wav and mp3 files. Wavosaur has all the features necessary in order to edit audio (cut, copy, paste, etc.) produce music loops, analyze, record, and batch convert.
Wavosaur supports VST plugins, ASIO driver, multichannel wav files, real time effect processing.
The program has no installer and doesn’t write in the registry. Use it as a free mp3 editor, for mastering, sound design. The Wavosaur freeware audio editor works on Windows 98, Windows XP and Windows Vista.