Final Answer:
The Tri-Ergon process addressed two significant challenges faced in the early days of film sound technology. These were: Synchronization and limited recording time, so the correct option is a.
Step-by-step explanation:
Let's look at each issue the Tri-Ergon process aimed to solve in more detail:
1. Synchronization: Before the advent of sound-on-film technology like the Tri-Ergon process, movies were silent or had sound that was played separately from a phonograph or performed live, which resulted in difficulties keeping the sound in sync with the picture.
The Tri-Ergon process helped to solve this by recording sound directly onto the filmstrip itself, which ensured that the sound was perfectly synchronized with the visual content of the film.
2. Limited Recording Time: The early sound reproduction devices had limitations on the length of the sound they could record.
Films were much longer than the duration these devices could handle, which made it difficult to produce feature-length films with continuous synchronized sound.
The Tri-Ergon process contributed to solving this by allowing sound to be recorded as a part of the filmstrip, thus extending the recording time to match the film's duration.
Therefore, the correct choice that reflects the problems the Tri-Ergon process solved is: a) Synchronization and limited recording time