Test - Leader LFM 39 A Wow and Flutter Meter
Even though there are methods to test wow and flutter using a computer, and several software applications, having a dedicated stand alone wow and flutter meter is useful. The Leader LFM-39A accurate and dependable. It is the System Standard right now for analog wow and flutter measurements
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Conclusions
Concluding comments
1. This page was done engineering notebook style – Someday in the future it might be added to and typed up in a spreadsheet
2.This is a current system ‘Standard’ subject to revision.
The Leader LFM-39A Wow and Flutter Meter is a valuable instrument designed for measuring the Wow, Flutter, and Drift characteristics of various audio playback and recording equipment. Let’s explore its features and usage:
Purpose and Functionality:
- The LFM-39A provides direct reading measurements for Wow, Flutter, and Drift.
- It quantifies the amount of “frequency wobble” caused by speed fluctuations in analog recording and reproduction devices.
- The instrument ensures accurate assessment of audio playback quality.
Key Features:
- Oscillator with Excellent Frequency Accuracy:
- The LFM-39A contains an oscillator with precise frequency accuracy.
- This oscillator is used for calibrating the drift meter and supplying a recording signal.
- TO SCOPE Terminal:
- The instrument features a TO SCOPE terminal for analyzing Wow and Flutter components.
- RECORDER Terminal:
- The RECORDER terminal allows Wow and Flutter recording.
- Oscillator with Excellent Frequency Accuracy:
Calibration:
- To maintain accuracy, a Calibration CD with special tracks according to the calibration instructions is required.
- You can download these calibration tracks in WAV audio format here.
Applications:
- The LFM-39A is used for assessing the performance of tape recorders, record players, and other playback/recording equipment.
- It provides effective values, peak-to-peak values, and center frequency (typically 3 kHz or 3.15 kHz) of Wow and Flutter.
Remember that the Leader LFM-39A Wow and Flutter Meter plays a crucial role in maintaining audio quality and ensuring accurate playback and recording. 🎧🌟
For more detailed information, you can refer to the Leader LFM-39 Wow and Flutter Meter Manual or the official instruction manual.123