[Verse 1] In Yorkshire towns from seventy-five to eighty A killer stalked the streets so dark and cold Thirteen women lost their lives completely While police searched for clues both new and old Then came a tape with voice so strange and haunting A Wearside accent claiming to be him The investigation turned toward that calling But something wasn't right, the trail grew dim [Chorus] Spectral analysis breaks the voice apart Finding patterns hidden in the sound Dialect algorithms map each part Twenty-five years later, truth is found Audio forensics never lies Every frequency tells the tale When the patterns meet your eyes Even decades-old deceptions fail [Verse 2] The real killer had a different accent Police chased shadows while he killed again Years went by with justice misdirected By hoax tape's voice that fooled so many men John Humble was the name behind deception His cruel game cost innocent lives But sound waves hold their own reflection In spectral data that survives [Chorus] Spectral analysis breaks the voice apart Finding patterns hidden in the sound Dialect algorithms map each part Twenty-five years later, truth is found Audio forensics never lies Every frequency tells the tale When the patterns meet your eyes Even decades-old deceptions fail [Bridge] DNA on envelope flaps remained Sequence alignment found the match Voice patterns digitally explained What human ears could never catch Modern systems now detect Regional accents with precision Hoax attempts they can reject Supporting clear police decision [Verse 3] Two-thousand-six brought Humble's conviction Algorithms proved what voices hide Spectral graphs showed the contradiction Between the truth and what he lied Now dialect analysis protects us From misdirection's deadly cost Technology helps to connect us To justice that was nearly lost [Final Chorus] Spectral analysis breaks the voice apart Finding patterns hidden in the sound Dialect algorithms map each part Even old mysteries can be found Audio forensics saves the day Every frequency holds the clue When algorithms light the way Justice finally makes it through [Outro] From hoax tape to conviction's end Algorithms solved what time concealed The voice patterns never bend And truth at last was revealed
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