FreeCalypso > hg > fc-audio-config
annotate aud-fcdev3b/README @ 15:ee565d95164c default tip
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> |
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date | Sat, 06 Nov 2021 08:23:16 +0000 |
parents | b57c380d78e7 |
children |
rev | line source |
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12
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 spkr0 is the new (as of 2021-10) audio mode config for FCDEV3B |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 loudspeaker+microphone voice call kit. The other two configs are historical |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 and should no longer be used: |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 spkrmax config was my (Mother Mychaela's) concoction at the time when I tried |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
6 to use tiny cellphone-sized speakers, which were too quiet in the absence of |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
7 special mechanics and acoustics. It needs to be noted that setting a positive |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 speaker "calibration" gain in the Iota ABB with the volume control set to max |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 and with the waveform at full scale produces clipping instead of more Vpp |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 output, hence this approach is not really a solution. |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 mcsi config was an early method of entering MCSI digital voice mode, but this |
b57c380d78e7
aud-fcdev3b/README: explanation of new vs. historical configs
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 method should no longer be used, as it is broken - use AT@VSEL=1 instead. |