Tech Papers 2023: This paper proposes and validates a Next Generation Audio (NGA) live-production workflow using S-ADM, demonstrating that immersive and personalized programmes with consistent loudness management can be reliably produced and rendered in real time.
Abstract
Next generation audio (NGA) delivers personalised audio experiences on the basis of the listener’s preference and loudspeaker configurations and rendering algorithms in the listening environments. The prototype of NGA production equipment was arranged to verify the NGA live-production workflow to produce the typical personalised NGA programmes. It consisted of our developed NGA console, NGA loudness meter, and MPEG-H 3DA- complied coding system supporting the Audio Definition Model (ADM) and the serial representation of ADM (S-ADM). Subjective tests were conducted to verify the reasonability of the loudness measurement method in order to develop the NGA loudness meter using several rendering conditions, including loudspeaker configurations and rendering algorithms. The results showed that differences between objective and subjective loudness of NGA programmes are comparable to those of channel-based audio programmes.
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