Welcome to Sound Signature, this app has been designed to help new thermite welders to set up their oxy-propane burner. It analyze the sound of the preheating, compare it to a references and tells you how to adjust the ratio between gas and propane. The references is different for each model of cellphone. It can be recorded on your phone directly by a skilled welder, or downloaded if a welder with the same phone already registered one.
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