IEEE 347-1972

IEEE 347-1972 is a technical standard for measuring the recorded flux of magnetic sound records at medium wavelengths. It provides a defined method for evaluating magnetic recordings in a way that supports consistent signal processing, calibration, and comparison across equipment and test conditions. For engineers working with recording and playback systems, this standard helps reduce ambiguity when assessing recorded flux levels and related performance characteristics in communication, audio, and analysis contexts.

IEEE 347-1972 overview

This standard focuses on the method used to measure recorded flux on magnetic sound records, with attention to medium wavelengths where signal behavior can affect practical results. IEEE 347-1972 is relevant to users who need repeatable measurements for magnetic recording media and associated playback or test instrumentation. By defining a common measurement approach, it supports clearer technical interpretation of recorded output and helps align laboratory practice with a recognized engineering reference.

Typical use cases

IEEE 347-1972 is commonly used when evaluating magnetic sound records in test environments, record/replay systems, and measurement workflows that depend on flux-based assessment. It may be applied during equipment characterization, calibration checks, and comparative testing of recording media or head assemblies. The standard is also useful in signal processing and analysis tasks where consistent recorded-flux measurement supports reliable data interpretation across communication and broadcast-related systems.

Why this standard matters

Accurate flux measurement is important because small differences in recording or playback conditions can change system behavior and measured performance. IEEE 347-1972 helps establish a controlled basis for compliance testing, design verification, and procurement decisions involving magnetic sound records and related hardware. Using a recognized method can reduce measurement variability, improve repeatability, and support more dependable engineering decisions when comparing results between laboratories, devices, or test runs.

• Recorded flux measurement method
• Magnetic sound records at medium wavelengths
• Signal processing and analysis context
• Testing and calibration reference
• Inactive IEEE standard