- _audio_mapping->set (dcp::LEFT, 0, 1 / sqrt(2)); // L -> Lt
- _audio_mapping->set (dcp::RIGHT, 1, 1 / sqrt(2)); // R -> Rt
- _audio_mapping->set (dcp::CENTRE, 0, 1 / 2.0); // C -> Lt
- _audio_mapping->set (dcp::CENTRE, 1, 1 / 2.0); // C -> Rt
- _audio_mapping->set (dcp::LFE, 0, 1 / sqrt(10)); // Lfe -> Lt
- _audio_mapping->set (dcp::LFE, 1, 1 / sqrt(10)); // Lfe -> Rt
- _audio_mapping->set (dcp::LS, 0, 1 / sqrt(2)); // Ls -> Lt
- _audio_mapping->set (dcp::RS, 1, 1 / sqrt(2)); // Rs -> Rt
+ _audio_mapping->set (dcp::Channel::LEFT, 0, 1 / sqrt(2)); // L -> Lt
+ _audio_mapping->set (dcp::Channel::RIGHT, 1, 1 / sqrt(2)); // R -> Rt
+ _audio_mapping->set (dcp::Channel::CENTRE, 0, 1 / 2.0); // C -> Lt
+ _audio_mapping->set (dcp::Channel::CENTRE, 1, 1 / 2.0); // C -> Rt
+ _audio_mapping->set (dcp::Channel::LFE, 0, 1 / sqrt(10)); // Lfe -> Lt
+ _audio_mapping->set (dcp::Channel::LFE, 1, 1 / sqrt(10)); // Lfe -> Rt
+ _audio_mapping->set (dcp::Channel::LS, 0, 1 / sqrt(2)); // Ls -> Lt
+ _audio_mapping->set (dcp::Channel::RS, 1, 1 / sqrt(2)); // Rs -> Rt