On 08 Nov 2018, Arlen_Holder wrote in
microsoft.public.windowsxp.general:

UPDATE:
o I'm not sure, but apparently most mobile devices have a separate
tinny tiny speaker specifically for the ringtone, which is mono
(if you know more about that, please advise).

o What this means, if correct, is that we can't just use any old
audio as a ringtone, as it won't sound right and/or it could
damage the ringtone tinny tiny speaker.

o First off, we will need to merge the two channels into a single
channel.

o Apparently we may need to run a high pass filter, where the -3dB
cutoff frequency is somewhere between 0 Hz and 300 Hz to 400 Hz.

o Apparently we may need to run a low pass filter with a -3dB
cutoff frequency somewhere pretty low, like around 3000 Hz.

o The kbs doesn't matter anymore, as that was only a space-saving
tactic, where 128kbs is just fine.

o The loudness should be "normalized" with the "dc offset
removed".

o You can fade in or out, as desired.

One minor problem is the GUI for TRIM is problematic in Audacity,
so what I generally do is delete and time shift instead of TRIM.

Wrong, wrong, wrong, wrong, wrong, wrong, wrong, wrong. That's zero for
eight.

Keep up your usual good work.