AWS Transcribe JSON to Script with php

readme.md

Snippet to convert AWS transcribe into a scripted text

Be careful: This script has been created to be used under a command controller in Yii2. 

You can easily port to any php by adapting last three lines

transcribe.php

<?php 
$data= json_decode($aws_transcribe_json, true);
$labels = $data['results']['speaker_labels']['segments'];
        $speakerStartTimes = [];
        foreach ($labels as $label) {
            foreach ($label['items'] as $item) {
                $speakerStartTimes[$item['start_time']] = $item['speaker_label'];
            }
        }
        $items = $data['results']['items'];
        $lines = [];
        $line = "";
        $time = 0;
        $speaker = null;
        $i = 0;
        foreach ($items as $item) {
            $i++;
            $content = $item['alternatives']['0']['content'];
            if (isset($item['start_time'])) {
                $currentSpeaker = $speakerStartTimes[$item['start_time']];
            } elseif ($item['type'] == "punctuation") {
                $line .= $content;
            }
            if ($currentSpeaker != $speaker) {
                if (!empty($speaker)) {
                    $lines[] = [
                        'speaker' => $speaker,
                        'line' => $line,
                        'time' => $time
                    ];
                }
                $line = $content;
                $speaker = $currentSpeaker;
                $time = $item['start_time'];

            } else if ($item['type'] != "punctuation") {
                $line = $line . " " . $content;

            }

        }
        $lines[] = [
            'speaker' => $speaker,
            'line' => $line,
            'time' => $time
        ];

        usort($lines, function ($a, $b) {
            return $a['time'] <=>  $b['time'];
        });

        foreach ($lines as $line){
            $this->stdout(\Yii::$app->formatter->asTime($line['time']),Console::FG_GREEN). " ";
            $this->stdout($line['speaker'],Console::FG_BLUE). " ";
            $this->stdout($line['line']."\n");
        }