GAIN_TO_DB
static_cast<float *>(value)[0] = GAIN_TO_DB((output->GetOutputChannelGain(0) + output->GetOutputChannelGain(1)) / 2);
gain += GAIN_TO_DB(
= GAIN_TO_DB(output->GetOutputChannelGain(channel));
static_cast<float *>(value)[0] = GAIN_TO_DB((input->GetInputChannelGain(0) + input->GetInputChannelGain(1)) / 2);
static_cast<float *>(value)[chan] = GAIN_TO_DB(input->GetInputChannelGain(chan));
static_cast<float *>(value)[0] = GAIN_TO_DB((input->GetMixerChannelGain(0) + input->GetMixerChannelGain(1)) / 2);
static_cast<float *>(value)[chan] = GAIN_TO_DB(input->GetMixerChannelGain(chan));