Audio Frequency Modulation Explained
Audio Frequency Modulation (AFM) is an audio recording standard used by Betamax and VHS Hi-Fi stereo, 8mm and Hi8 video systems. AFM is mono on 8mm systems and stereo on Hi8.
References
- Book: Capelo, Gregory R.. VCR Troubleshooting & Repair. Brenner. Robert C.. 1998. Newnes. 978-0-7506-9940-2. VCR Audio Processing: Theory and Troubleshooting. registration.