FreeCalypso > hg > fc-tourmaline
view doc/Modem-operation @ 286:ee16d57b32b2
Condat audio_Init(): rm setting of sidetone level
The default sidetone level in the absence of audio mode loading
is just that, a basic default without any promises of good tuning.
In the original TCS211 code this default sidetone level was set in
two places: first in L1 init of ABB-via-DSP registers (set to -17 dB),
and then initialized again in Condat audio_Init(), this time set to
-5 dB. The present change removes the redundant second initialization.
The default sidetone level is now -17 dB instead of -5 dB with this
change, but again it is just the default; all serious users are now
expected to use audio mode config files.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Tue, 09 Nov 2021 02:16:59 +0000 |
| parents | a62e5bf88434 |
| children |
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FC Tourmaline stdmodem functional configuration is equivalent to Magnetite hybrid. The only intentional diff from Magnetite to Tourmaline in the modem configuration is the change of Nucleus: Magnetite uses the blob version of Nucleus which came with TCS211-20070608, whereas Tourmaline uses the source version of Nucleus by Comrade XVilka. It is essentially a change from an unknown version of Nucleus to a known one, thus it should generally be considered an improvement - but as always with such changes, extensive verification and testing needs to be done in order to ensure that nothing got broken. Aside from the one intentional change of Nucleus version, FC Tourmaline is an entirely new firmware source tree, thus it is always possible that something could have got broken unintentionally, particularly in rarely-tested areas of the firmware. Therefore, extensive testing will need to be done before we can declare Tourmaline stdmodem as officially replacing Magnetite hybrid for stable modem products.