sound card

Test your hearing at home with your PC through standard sound card & headphones.

A program to communicate with phone TTY/TDD devices via a sound card or Skype

Sounds will allow you to make music on any pc (no sound card required!).

Freeware Experimental-Program 9-Tone-MFSK with sound card.

Test impedance & response of speakers with a mike, preamp, PC & sound card

Uses sound card Frequency analysis Spectrum Analyser

Test a PC system's sound card, speakers and microphone.

SoundRouter allows audio to be routed from one sound card device to another.

DTMF dial is a software program designed to emit DTMF tones from the sound card.

Sound/voice activated recorder, will start recording when sound is detected.