ESS_4BIT_GAIN
v = ESS_4BIT_GAIN(AUDIO_MAX_GAIN / 2);
lgain = rgain = ESS_4BIT_GAIN(
lgain = ESS_4BIT_GAIN(
rgain = ESS_4BIT_GAIN(
lgain = rgain = ESS_4BIT_GAIN(
lgain = ESS_4BIT_GAIN(
rgain = ESS_4BIT_GAIN(