ɪt wʌz ɹᵻkˈoːɹdᵻd ˌɔn twˈɛnti sɛptˈɛmbɚ nˈaɪntiːnhˈʌndɹɪd twˈɛnti sˈɛvən ænd mˈoʊst lˈaɪkli wʌz jˈuːzd dˈʊɹɹɪŋ tˈɛsts pɹˈaɪɚ tə bˈɛɹdz tɹˈænzɐtlˈæntɪk tˈɛlᵻvˌɪʒən dˌɛmənstɹˈeɪʃən ɪn fˈɛbɹuːˌɛɹi nˈaɪntiːnhˈʌndɹɪd twˈɛnti ˈeɪt.
It was recorded on 20 September 1927 and most likely was used during tests prior to Baird's trans-Atlantic television demonstration in February 1928.