@Test
    public void testAmazonTranscribeUnknownAudio_deDE() throws Exception {
        String file = "de-DE_(We_Are_At_School_x2).mp3";
        String expected = "Wir sind in der Schule. Wir sind in der Schule.";
        String xml = getXML(file, PARSER).xml;
        assertContains(expected, xml);
    }
Tests transcribe with an audio file without passing in the source language.
The source language of the file is de-DE (German)
tika-parsers/tika-parsers-ml/tika-transcribe-aws/src/test/java/org/apache/tika/parser/transcribe/aws/AmazonTranscribeTest.java