Alsa-utils

From the ALSA wiki

The following utilities are included in the official alsa-utils package.

• aconnect - ALSA sequencer connection manager
• alsaconf - The ALSA driver configurator script
• alsactl - An utility for soundcard settings management
• alsamixer - A ncurses mixer
• amidi - A utility to send/receive sysex dumps or other MIDI data
• amixer - A command line mixer
• aplay/arecord - An utility for the playback/capture of .wav,.voc,.au files
• aplaymidi
• aseqdump
• aseqnet
• iecset - A utility to show/set the IEC958 status bits
• speaker-test - Command-line speaker test tone generator for ALSA

You can get the current package as well as older versions at ftp://ftp.alsa-project.org/pub/utils/.