SN EN 61213 : 1994

Cooperating organizations
National foreword
Foreword
Specification
1. Scope
2. Normative references
3. General
4. Preservation of overall polarity in audio recording
     and processing equipment
5. Direction of magnetization of analogue baseband
     audio recordings
6. Polarity of deviation of frequency-modulation of
     audio signals in FM recording
Annexes
A. (informative) Bibliography
ZA. (normative) Other international publications
     quoted in this standard with the references of the
     relevant European publications
NA. (informative) Committees responsible
NB. (informative) Cross-references
Figure
1. Method of testing the polarity characteristic of an
     audio analogue baseband recorder

Applies to audio recording and processing. Gives requirements for the preservation of signal polarity, together with methods of test which are not already included in other standards. Coverage includes: preservation of overall polarity in audio recording and processing equipment; direction of magnetisation of analogue baseband audio recordings; polarity of deviation of frequency modulation of audio signals in FM recording.