Katsura Shareware

ProLevel

Paid

Mix audio with real-time stereo level meter and clip indicator.

RealZoom Quartz

Paid

generate closeup images of LCD, CRT or paper

AudioTest

Paid

Generate audio test signals, AIFF files.

Chromatic Tuner

Paid

Tune a guitar or any other musical instrument.

ProPhase

Paid

Display phase and level of stereo audio signals in real time.

Screenshot Helper

Free

Clears the screen for a clean screenshot.

Sirds

Paid

Create Single Image Random Dot Stereograms (SIRDS).

Ocean Waves

Paid

Relax as you listen to an ocean waves simulation.

RealZoom

Paid

Generate closeup images of LCD, CRT or paper.

KS Strobe Tuner AU

Trial version

Turn your Mac into a 12-note chromatic scale strobe tuner.

KS Chromatic Tuner AU

Trial version

Tune your guitar, bass, and other musical instruments.

SoundFrames

Paid

worksheets for syncing audio tracks & animation

Strobe Tuner

Trial version

Tune your string instruments.

Piano Tuner

Trial version

Tune your piano.