Cross Reference: /cts/suite/audio_quality/test

`Name`	`Date`	`Size`
Up to higher level directory
`chirp_400_20000.r2s`	05-Aug-2015	`689.1K`
`dut_playback_spectrum_chirp.xml`	05-Aug-2015	`1.9K`
`ref_playback_spectrum.xml`	05-Aug-2015	`1.9K`
`ref_playback_spectrum_chirp.xml`	05-Aug-2015	`1.9K`

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