Task Instructions
In this task you will hear samples of speech recordings. The purpose of this test is to
evaluate the quality and intelligibility of each file in terms of its overall sound quality
and the amount of mumbling and unclear phrases in the recording.

Please keep in mind that speech samples can be distorted and noisy, however these are
only specific examples.

Please use a headset for listening and adjust your volume level to your comfort during
this training, and do not change later during the experiment.

You should give a score according to the following scale, known as the MOS (mean
opinion score) scales:

Score (Quality and Intelligibility of the speech)
5 (Excellent)
4 (Good)
3 (Fair)
2 (Poor)
1 (Bad)

Table C10: Similarity mean opinion score (SMOS) instruction.

Task Name
Rate the similarity of the synthesized speech samples to a given prompt.
Voicebox-Text-GuidedMultilingual UniversalSpeechGenerationatScale