Tag Archives: ALSA

FMIT ~ Free Music Instrument Tuner

Posted by tom2tec on

FMIT is a graphical utility for tuning your musical instruments, with error and volume history and advanced features.

Features:

  • Estimation of the fundamental frequency (f0) of an audio signal, in real-time.
    (the f0, not the perceived pitch)
  • Harmonics’ amplitude
  • Waveform’s period
  • Discrete Fourier Transform (DFT)
  • Microtonal tuning (supports scala file format)
  • Statistics
  • All views are optional so that the interface can be as simple as possible.
    (make it easy to see on a distant screen)
  • Can support OSS, ALSA, PortAudio and Jack sound systems.
  • Everything runs under Linux, Mac OSX  and Windows 

gillesdegottex.github.io/fmit

CamillaDSP ~ IIR & FIR Engine For Crossovers & Room Correction

Posted by tom2tec on

A tool to create audio processing pipelines for applications such as active crossovers or room correction. It is written in Rust to benefit from the safety and elegant handling of threading that this language provides. Supported platforms: Linux, macOS, Windows.

Audio data is captured from a capture device and sent to a playback device. Alsa, PulseAudio, Jack, Wasapi and CoreAudio are currently supported for both capture and playback.

The processing pipeline consists of any number of filters and mixers. Mixers are used to route audio between channels and to change the number of channels in the stream. Filters can be both IIR and FIR. IIR filters are implemented as biquads, while FIR use convolution via FFT/IFFT. A filter can be applied to any number of channels. All processing is done in chunks of a fixed number of samples. A small number of samples gives a small in-out latency while a larger number is required for long FIR filters. The full configuration is given in a YAML file.

henquist.github.io
github.com/HEnquist/camilladsp

Pipewire ~ Linux Multimedia Processing

Posted by tom2tec on

PipeWire is a project that aims to greatly improve handling of audio and video under Linux. It provides a low-latency, graph-based processing engine on top of audio and video devices that can be used to support the use cases currently handled by both PulseAudio and JACK. PipeWire was designed with a powerful security model that makes interacting with audio and video devices from containerized applications easy, with support for Flatpak applications being the primary goal. Alongside Wayland and Flatpak, we expect PipeWire to provide a core building block for the future of Linux application development.

  • Capture and playback of audio and video with minimal latency.
  • Real-time multimedia processing on audio and video.
  • Multiprocess architecture to let applications share multimedia content.
  • Seamless support for PulseAudio, JACK, ALSA, and GStreamer applications.
  • Sandboxed applications support. See Flatpak for more info.
pipewire.org

mp3menu ~ Linux Console Audio Player

Posted by tom2tec on

mp3menu lets you select and play your music files using iselect and AlsaPlayer. Mainly MP3’s, but this will actually play anything AlsaPlayer and libaudio can handle, so WAV and FLAC are covered, as well as a bunch of ancient formats dating back to the 1980s. Sadly, M4A is not.

Requires:
1. AlsaPlayer
2. Iselect
3. Bash – mp3menu is a bash script. It might work with zsh, dash and other shells, or it might not.

sourceforge.net/projects/mp3menu

CheeseTracker ~ Sampler & Sequencer

Posted by tom2tec on

CheeseTracker is a software sampler and step-based sequencer. It allows a musician to turn single-note samples into instruments capable of covering three or four octaves (by playing the samples at different speeds, resulting in different pitches). In addition, it is possible to take a collection of samples that are recorded at different octaves, and combine them into a single “instrument,” allowing for even more octaves without sampling artifacts.

Using the Pattern Editor, it is possible to compose songs with these instruments that the computer plays automatically. The Pattern Editor allows the user to arrange samples in several independant channels, so that many samples can play simultaneously. These songs, and the samples which comprise their instruments, can be saved together in one-file archives called modules.

CheeseTracker imposes no limits on the length of the samples used. As a result, it can be used as a mixer as well as a sampler/sequencer. Effects such as reverb can be applied to each sample individually, eliminating the need for expensive pedals.

cheesetracker.sourceforge.net

AlsaPlayer ~ Linux PCM Player

Posted by tom2tec on

AlsaPlayer for Linux is a new kind of player that effectively runs pulse-code modulation or .PCM files. The player uses multithreading pretty heavily and was written specifically for giving some good exercise to the new Advanced Linux Sound Architecture (ALSA) driver and the library system. If you look closely, you’ll observe that AlsaPlayer has some highly interesting features that can be found only in the UNIX-based or Linux-based players. The main goal of the people who created AlsaPlayer for Linux was to develop a completely pluggable framework that could playback every type of media file, with majority of focus on the PCM audio data.

alsaplayer.sourceforge.net

www.alsaplayer.org

Drumstick ~ MIDI Monitor

Posted by tom2tec on

Drumstick MIDI Monitor is a MIDI monitor for Linux using ALSA sequencer and Qt5 user interface.

Features:
  • Easy to use Qt5 graphic user interface
  • Based on ALSA sequencer. Provides one input port to be connected to other programs and devices using the usual external tools (aconnect, QJackCtl…)
  • Customizable event filters and sequencer parameters
  • Supports all MIDI messages, including System Exclusive, and some ALSA messages
  • MIDI Playback of the recorded session or loaded MIDI file
  • Saves to a text file or standard MIDI file the recorded event list

sourceforge.net/projects/kmidimon

projectM ~ Modern Milkdrop Visualizations

Posted by tom2tec on

projectM is an open-source project that reimplements the esteemed Winamp Milkdrop by Geiss in a more modern, cross-platform reusable library. Its purpose in life is to read an audio input and to produce mesmerizing visuals, detecting tempo, and rendering advanced equations into a limitless array of user-contributed visualizations.

github.com/projectM-visualizer/projectm

Foobar2000 component:

www.foobar2000.org/components/view/foo_vis_projectM

AGS ~ Advanced Gtk+ Sequencer

Posted by tom2tec on

Advanced GTK+ Sequencer is intended to use for music composition. It features a piano roll, as well a synth, matrix editor, drum machine, soundfont2 player, mixer and an output panel.

It’s designed to be highly configurable, you may add effects to its effect chain, add or remove audio channels/pads.

You may set up a fully functional network of engines, therefore exists a link editor for linking audio lines.

In conjunction with ags you need a realtime kernel and alsa support. `ags` uses conditional locks to keep several threads in sync that’s why you need at least a preemptible kernel.

Features:
  • save or open Advanced Gtk+ Sequencer XML files with XPath support
  • add or remove audio engines with adjustable audio channels and pads
  • link channels with property dialog
  • output panel, mixer, drum and matrix sequencer, soft synth and audio file player
  • piano roll with basic notation editing supporting copy & paste
  • adjustable BPM
  • LADSPA, DSSI and Lv2 support
  • export to WAV, FLAC, OGG and others
  • multiple sinks like Pulseaudio, JACK, ALSA and OSS
  • automation editor
  • waveform editor with copy & paste
  • capture sound with AgsAudiorec machine
  • MIDI instrument input
  • import/export to Standard MIDI Files
  • OSC content format support
  • OSC server for remote control and monitoring

nongnu.org/gsequencer/

sourceforge.net/projects/ags/

Kwave ~ KDE Audio Editor

Posted by tom2tec on

Kwave is a sound editor for the KDE environment. It is written with KDE/QT and is extendable through a powerful plugin interface. For the moment it supports .wav files and many other formats, recording/playback via PulseAudio, Qt Multimedia, OSS and ALSA and some simple effects.

Features:
  • user interface based on KDE Frameworks 5
  • editing of multi track sound files
  • playback via ALSA, OSS, Phonon, PulseAudio
  • recording via ALSA
  • supported file formats: WAV audio, Ogg/Vorbis, FLAC, AIFF,Amiga,Mac-Audio, ULAW (Sun)-Audio, Berkeley,IRCAM,Carl Sound Format, MP3-Audio
  • volume control
  • sample rate conversion
  • pitch shift
  • reverse
  • low pass, notch filter
  • normalizing

kwave.sourceforge.net/

sourceforge.net/projects/kwave/

QmidiNet ~ MIDI Network Gateway

Posted by tom2tec on

QmidiNet is a MIDI network gateway application that sends and receives MIDI data (ALSA Sequencer and/or JACK MIDI) over the network, using UDP/IP multicast. Inspired by multimidicast and designed to be compatible with ipMIDI for Windows.

qmidinet.sourceforge.io

Drumstick Metronome ~ Linux Precision Beats

Posted by tom2tec on

Drumstick Metronome is a MIDI based metronome using the ALSA sequencer. It’s intended for musicians and music students, as a tool to keep the rhythm while playing musical instruments. It uses MIDI for sound generation instead of digital audio, allowing low CPU usage and very accurate timing, thanks to the ALSA sequencer.

Features:

  • Easy to use graphic user interface.
  • MIDI only. Can be used with software or external MIDI synthesizers.
  • Based on ALSA sequencer. Provides input and output ports
  • Highly customizable parameters.
  • External control: D-Bus and MIDI realtime.
  • Custom rhythm patterns.

sourceforge.net/projects/kmetronome