- ADC
 
- Analog Digital Converter.
  This converts analog audio signals into a digital stream of samples.
 
- ALSA
 
- Advanced Linux Sound Architecture.
 
- capture group
 
- A mixer group that contains up to one volume, one mute, and one input
  selection element.
 
- CD
 
- Compact disk.
 
- codec
 
- Compression-Decompression module.
 
- DAC
 
- Digital Analog Converter.
  This converts a digital stream of samples into analog signals.
 
- MIC
 
- Microphone.
 
- mixer group
 
- A collection or group of elements and associated control capabilities.
 
- PCI
 
- Peripheral Component Interconnect (personal computer bus).
 
- PCM
 
- Pulse Code Modulation.
  A technique for converting analog signals to a digital representation.
 
- playback group
 
- A mixer group that contains up to one volume element and one mute element.
 
- S/PDIF
 
- Sony / Philips Digital InterFace.
  A hardware and protocol standard for the transmission of digital audio
  signals.
 
- SRC
 
- Sample Rate Conversion.