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annotate aud-caramel/hds4.src @ 6:cd0641c3611a

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add README
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 06 Apr 2022 05:26:36 +0000
parents 6ef2edd7ab6d
children
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6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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1 # This audio mode config is for the FC-HDS4 headset plugged into the
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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2 # main (EAR/MIC) audio jack on Caramel (iWOW DSK) or FC Caramel2
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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3 # development boards.
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
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6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
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5 mic default {
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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6 gain 8 # tuned empirically for far end subjective perception
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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7 output-bias 1 # FC-HDS4 microphone needs 2.5V
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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8 # Mic appears to have flat frequency response, thus no FIR needed
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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9 }
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
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6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
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11 speaker ear {
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
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12 gain 0 # left at default for now
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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13 # We do have frequency response data, but no flattening FIR filter design
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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14 # has been attempted yet
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
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15 }
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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17 sidetone -17 # sounds reasonable
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
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6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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19 # Let's try using Pirelli's non-loudspeaker (handheld/headset)
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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20 # AEC config.
6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
Mychaela Falconia <falcon@freecalypso.org>
parents:
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6ef2edd7ab6d aud-caramel, aud-fcdev3b: import from fc-audio-config repository
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parents:
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22 aec-new 2 1 0x14 0xCCC 0x59AD 0x4000 0x32 0x1000 0x1000 0 4 0