set temperature to 0 to make results reproducible

[30stomercury]

Set temperature to 0 for reproducible asr results. See https://github.com/fairinternal/seamless_common/pull/289 for the explanation. @uralik we might also need to fix this line?

Note that this is a temporal workaround for current SimulEval as we may unify the evaluation pipeline in the near future.

[uralik]

@uralik we might also need to fix this line?

for translation use case non-determinism was more desired compared to degeneration (repetitions etc. which might happen when whisper does not fall back to sampling). thats why I didnt change that part