data/audio_context_study/README.md

Data dictionary: data/audio_context_study/

Follow-up study: does the audio–text difference survive when the conversation history is heard rather than read? In the main study the history was shown as text even in the audio condition. Here the history and the current query are played as audio before the two responses. The responses are the main study's Kokoro af_heart clips.

Slug (file suffix)	History rendering	Analyzed raters	Label in the paper
audiocontext_onevoice	one voice (af_heart) for both speakers, with an on-screen speaker indicator	22	B1
audiocontext	two voices: user turns am_michael, assistant turns af_heart	23	B2

• Stimuli: 30 prompts that have conversation history (stimuli/audio_context_study/prompts.csv). 15 of them overlap with the voice study.
• Session: each participant rated 15 trials plus one attention check, about 47 minutes.
• Coverage: 9–14 raters per clip.
• Ethics and pay: same IRB protocol, Prolific recruitment (US residents), consent flow and pay rate as the main study.
• Pseudonyms: AC1-### (one-voice) and AC2-### (two-voice), numbered in assignment order. These are different people from the main study and the voice study.

Results built from this folder: the audio-context ablation in Appendix H and Tables 13–18 (see analysis/README.md).

Files

Each table exists once per slug: <table>_audiocontext_onevoice.csv (B1) and <table>_audiocontext.csv (B2). The schemas match data/voice_study/:

Table	Contents
long_<slug>_raw.csv	every rated clip, attention checks included; same columns as long_voice_raw.csv
long_<slug>_normalized.csv	analysis input, with the same normalization columns as long_voice_normalized.csv
participants_<slug>.csv	one row per participant record, same columns as participants_voice.csv, with demographics blank for records with Analyzed = False. assignedTrialIDs lists PromptIDs, and Arm is blank for records never assigned
justifications_<slug>.csv	optional free-text justifications, manually reviewed before release (102 for B1, 100 for B2)
trial_durations_<slug>.csv	time on each trial (TaskDurationMs), used for the B1 duration split

Two differences from the voice study:

• Arm is audio_context_onevoice or audio_context.
• The attention check (PromptID attention_0) plays clips 37_0_0.mp3 / 37_0_1.mp3, where the voice study plays attention_0_0.mp3 / attention_0_1.mp3. In both studies, clip _0 is the coherent response and _1 the nonsensical one.

No synthetic ratings were collected for these arms.

Provenance

Built with analysis/01_data_prep/04_convert_followup_json_to_csv.py from the two studies' Firestore exports and anonymized as described in data/voice_study/README.md.