Sound recording credits

These phonetic demonstrations are reference sounds, not textbook recordings or an accent assessment. Each audio file below is adapted under Creative Commons Attribution ShareAlike 3.0. Adapted audio files retain that license; it does not license the application code.

• /ʃ/: Peter Isotalo, Voiceless palato-alveolar sibilant, isolated-sound version uploaded 15 April 2005 (archive timestamp 20050502172837). Converted to mono WAV, volume adjusted and silence appended.
• /ɪ/: Denelson83, Near-close near-front unrounded vowel. Converted to mono WAV, volume adjusted and silence appended.
• /p/: Peter Isotalo, Voiceless bilabial plosive. Extracted release at 0.585–0.608 seconds; converted to mono WAV, volume adjusted, end faded and 150 ms silence appended. A plosive is inherently brief.
• /f/: Peter Isotalo, Voiceless labiodental fricative. Extracted fricative at 0.23–0.50 seconds, excluding surrounding vowels; converted to mono WAV, volume adjusted, edges faded and 150 ms silence appended.
• /ɒ/: Denelson83, Open back rounded vowel. Converted to mono WAV, volume adjusted and silence appended.
• /e/ (reference [ɛ]): Terfili (recording), Denelson83 (original uploader), Open-mid front unrounded vowel. Converted to mono WAV, volume adjusted and silence appended. Learner dictionaries may transcribe this English vowel /e/.
• /l/: Peter Isotalo, Alveolar lateral approximant. Extracted lateral at 0.48–0.62 seconds, excluding surrounding vowels; converted to mono WAV, volume adjusted, edges faded and 150 ms silence appended. Actual English /l/ varies by position and accent.

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