<launcher pkg="waveform_player" priority="-1">
	<route>
		<service name="Play"> <child name="mixer"/> </service>
	</route>
	<config period_ms="10">
		<play label="left"  wave="sine" hz="600" sample_rate_hz="44100"/>
		<play label="right" wave="sine" hz="600" sample_rate_hz="44100"/>
	</config>
</launcher>
