The Filtered Noise Generator (FNG) can generate noise signals and apply different frequency filters on them in real time and act as a tinnitus masker. Applications are loudspeaker or general audio testing, tinnitus masking, audio cross-over development, etc. Features include: White and pink noise signals with adjustable crest factor; Preset storage and recall; Multi sound card support; Sampling frequency up to 96kHz; Separate amplitude modulation left/right; Switches for channel on/off and l/r phase; Save test tones as WAV files for Test CDs; Externally controllable (via Windows Messages)