User`s manual

Table Of Contents
NORMS
[1] IEC 61672, Sound Level Meters (replacing former IEC 651, Sound level meters
and IEC 804, Integrating-averaging sound level meters).
[2] IEC 60268, Sound system equipment.
[3] IEC 60386, Methods of measurement of speed fluctuations in sound recording
and reproducing equipment.
[4] ISO 226, Normal equal-loudness-level contours.
[5] ISO 266, Preferred frequencies for measurements.
[6] ISO 3382, Measurement of reverberation time of rooms with reference to
other acoustical parameters.
[7] IEC 61260, Octave-band and fractional-octave-band filters.
[8] SMPTE RP120, Measurement of Intermodulation Distortion in Motion-Picture
Audio Systems.
NORMS 229