Language: Zurich German
Speakers: 16 young adults, 10 older adults
Speaking style: Read and spontaneous speech

Languages: Czech, English, French, German, Italian
Speakers: 5 philologically educated speakers
Speaking style: Read speech at 5 intended speech rate

Language: Swiss German
Speakers: 10 mothers
Speaking style: Infant/Adult-directed read speech

Language: German
Speakers: 24 professional speakers, 16 lay speakers
Speaking style: Sustained vowels, different voice quality