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FS#1291 - Key click
This patch adds a crude key click by turning off and on the dac,
generating a short pop, every time a key is pressed.
I have
only tested this for the recorder, so I would appreciate feedback
from player users. Is it useful? Could it be better?
There’s
not a whole lot we can do about the sound, unfortunately. We can
make several consecutive pops, making a longer sound. However
we can not make a high-frequency beep, since the dac is controlled
over a slow i2c link. The highest frequency possible only sounds
like a coarse noise, so I opted for the single discreet pop
instead.
Closed by zagor
2003-06-05 09:36
Reason for closing: Rejected
Additional comments about closing: Warning: Undefined array key "typography" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 371 Warning: Undefined array key "camelcase" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 407
2003-06-05 09:36
Reason for closing: Rejected
Additional comments about closing: Warning: Undefined array key "typography" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 371 Warning: Undefined array key "camelcase" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 407
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Since we can't make it work 100%
(sometimes misses clicks)
the
feature has only limited value.
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isn`t it possible to use one or more mp3-frames with the
appropriate sound for such?
i tried it and found, that sometimes it doesn`t click. e.g some
clicks are left out when browsing the dir
Yes, sometimes the click is not audible. This is because the dac is not
designed to click (in fact, it is generally undesirable). So you could say
I’m exploiting a dac bug that doesn’t always happen.
Inserting
mp3 frames in the running stream is rather difficult since data is
transfered with dma. Please ask on the mailing list for more detailed
technical discussion.
I like it!
After a few minutes playing with it, I have
these comments:
help in menu navigation. It is much less useful in this
regard if sometimes keypresses “miss” clicks (as discussed
below).
demo), personally
take the place of an “error beep” in the PC-world. It might
be implemented as a long-click, to distinguish from normal
click. Events that might generate error beeps would be:
trying to skip past last track in a repeat-off playlist,
trying to adjust settings past limit, etc.
keypress (more coding); so keypresses that are ignored
generate no click.
Just some thoughts.
It doesn’t sound pretty, but enough
to be usable, I think.
Since we can’t make it work 100% (sometimes misses clicks)
the feature has only limited value.