Cloud Lab audio exercise: recognize a repeating alert

Listen to this original synthetic tone exercise and count each pattern: one pulse, then two pulses, then three pulses. Replay it and compare how the patterns differ. The 12-second asset contains generated tones only, with no spoken narration, third-party recording or real system alert. This is an isolated listening exercise; do not connect it to live monitoring or production systems.

Audio is served by the publisher's external media host.