Description: Technology Test Tone Square Wave 100Hz 60 Seconds -18Db Loop.

Description: Technology Test Tone Square Wave 10Hz 60 Seconds -18Db Loop.

Description: Technology Test Tone Square Wave 20Hz 60 Seconds -18Db Loop.

Description: Technology Test Tone Square Wave 20Hz 60 Seconds 0Db Loop.

Description: Technology Test Tone Square Wave 250Hz 60 Seconds -18Db Loop.

Description: Technology Test Tone Square Wave 2Khz 60 Seconds 0Db Loop.

Description: Technology Test Tone Square Wave 31.05Hz 60 Seconds -18Db Loop.

Description: Technology Test Tone Square Wave 31.05Hz 60 Seconds 0Db Loop.

Description: Technology Test Tone Square Wave 440Hz 60 Seconds 0Db Loop.

Description: Technology Test Tone Square Wave 4Khz 60 Seconds -18Db Loop.

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