Switches between scale factor distance used by SV4, SV5, SV6 and SV7 -and-
the scale factor distance used by SV8 and MPEG Layer 2.

Member of Audio Header

Scale factor distance of 100 / 63 dB = 1.5873016 dB = 1 : 1.2005080577484

Used for SV4 . . . SV7.

0

1 bit

Scale factor distance of 20 / 3 * lg(2) dB = 2.0068666 dB = 1 : 1.189207115

Used for SV8 and lossless transcoding of MPEG Layer 2.

1	1 bit