Lines Matching full:db
23 * maxvol - set maximum volume to +20db (1), default is 0db(0)
57 MODULE_PARM_DESC(maxvol, "Set maximum volume to +20dB(0) else +0dB(1). Default is +20dB(0).");
138 /* Lower 7 bits control volume from -79dB to +32dB in 1dB steps
139 * Recommended maximum is +20 dB
141 * +32dB: 0x00
142 * +20dB: 0x0c
143 * 0dB: 0x20
144 * -79dB: 0x6f
155 /* Bits 0,1,2 control absolute treble gain from 0dB to 14dB
156 * 0x0 is 14dB, 0x7 is 0dB
162 * Bits 4,5,6 control absolute bass gain from 0dB to 14dB
164 * 0x0 << 4 is 14dB, 0x7 is 0dB
171 * 1 1 0 1 0 1 0 1 is +4dB bass, -4dB treble
187 /* Bits 0,1,2,3,4 control attenuation from 0dB to -37.5dB
188 * in 1.5dB steps.
190 * 0x00 is 0dB
191 * 0x1f is -37.5dB
204 /* Bits 0,1,2,3 control loudness from 0dB to -15dB in 1dB steps
207 * 0x0 is 0dB
208 * 0xf is -15dB