FreeCalypso > hg > fc-audio-config

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aud-caramel: create handheld.{cfg,vol} equal to hds4.{cfg,vol} The main audio channel on FC Caramel2 is not truly handheld, thus if someone is operating a C2 board in ACI mode, then doing AT@AUL="hds4" is more truthful than AT@AUL="handheld". However, the same audio mode needs to be named "handheld" for the UI firmware to pick it up in our Luna configuration.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 06 Nov 2021 08:23:16 +0000
parents ebdb8d68e157
children
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# This audio mode config is for the FC-HDS4 headset plugged into the
# main (EAR/MIC) audio jack on Caramel (iWOW DSK) or FC Caramel2
# development boards.

mic default {
	gain 8		# tuned empirically for far end subjective perception
	output-bias 1	# FC-HDS4 microphone needs 2.5V
# Mic appears to have flat frequency response, thus no FIR needed
}

speaker ear {
	gain 0		# left at default for now
# We do have frequency response data, but no flattening FIR filter design
# has been attempted yet
}

sidetone -17		# sounds reasonable

# Let's try using Pirelli's non-loudspeaker (handheld/headset)
# AEC config.

aec-new 2 1 0x14 0xCCC 0x59AD 0x4000 0x32 0x1000 0x1000 0 4 0