Document containing a link to an audio file with foreground speaker. Audio contrast: foreground audio content only Reinhard.Ruemer@jku.at en Copyright BenToWeb 2004-2007 2005-08-17 validated

The document is intended to pass because it contains no background sounds. Only the individual perception of the audio contrast is tested here.

 experts

There is no background sound that interferes with the understanding of foreground speech.

This test case maps to technique G56: Mixing audio files so that non-speech sounds are at least 20 decibels lower than the speech audio content.

There is no background sound that interferes with the understanding of foreground speech.

Online version: sc1.4.4_l3_003.

No background sound.