# british-rp-accent TRANSFORM — INGESTIBLE DATA (a geometry/transform composed
# onto the base General-American phoneme targets; voice + accent, separable).
#
# PROVENANCE — HONEST, COARSE FIRST PASS. These are DERIVED targets, NOT
# transcribed measured RP formants. Measured RP tables (Deterding 1997 JIPA 27;
# Hawkins & Midgley 2005 JIPA 35) are the intended ground truth but were gated at
# author time and NOT transcribed. Each target = the MEASURED Peterson&Barney
# (1952) base vowel transformed under the documented, citable RP-vs-GA structural
# rules of Wells (1982): non-rhoticity, TRAP F2-lowering, LOT/THOUGHT back-
# rounding, GOOSE-fronting, GOAT centering, NURSE de-rhoticization. Shift
# magnitudes are coarse/approximate; directions are cited. ground=derived.
# Refine by transcribing the measured RP tables. No value is claimed as measured.
# Format: KEY|F1|F2|F3|KIND|SET
IY|280|2249|3000|vowel_override|FLEECE
IH|360|2100|2550|vowel_override|KIT
EH|560|1970|2480|vowel_override|DRESS
AE|730|1590|2410|vowel_override|TRAP
AA|560|920|2440|vowel_override|LOT
AO|415|700|2410|vowel_override|THOUGHT
UH|380|1100|2240|vowel_override|FOOT
UW|310|1650|2240|vowel_override|GOOSE
AH|680|1180|2390|vowel_override|STRUT
ER|550|1500|2500|vowel_override|NURSE-nonrhotic
AX|500|1500|2500|vowel_override|commA
OW|450|1400|2380|vowel_override|GOAT
R|0|0|0|rule|non_rhotic_drop_coda