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FGCOM Testing: Difference between revisions
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→Tips and Tricks: merge problem descriptions from FGCOM to here
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(→Tips and Tricks: merge problem descriptions from FGCOM to here) |
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=== Tips and Tricks === | === Tips and Tricks === | ||
====Typical Problems==== | |||
<ol><li>Microphone not plugged: It sounds stupid – but most technical problems are due to such “cannot bee”s – please: Always spend the 2 sec. to check this first! | <ol><li>Microphone not plugged: It sounds stupid – but most technical problems are due to such “cannot bee”s – please: Always spend the 2 sec. to check this first! | ||
</li><br><li>Plug/Jack connections are often the cause for trouble: Try to re-seat your plugs and (if possible) try to use another jack (after cleaning the plug!). | </li><br><li>Plug/Jack connections are often the cause for trouble: Try to re-seat your plugs and (if possible) try to use another jack (after cleaning the plug!). | ||
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*try routing your Mic/Speaker cables away from electro-smog (Fans, AC/DC modules, motors, lamps, etc.) | *try routing your Mic/Speaker cables away from electro-smog (Fans, AC/DC modules, motors, lamps, etc.) | ||
*even placing your sound-card into another plug-position may help | *even placing your sound-card into another plug-position may help | ||
*a (digital) USB-headset may help avoiding noise and feedback problems | |||
*if stereomix is enabled on your sound-card - try to disable it | |||
</li><br><li>Most PC's are set up that you need to keep your PTT (PushToTalk) button pushed as long as you talk. But there are also sound-cards which open for talk with the first push/release and close it with the second push/release. Test your system how it works (may be while trying to record something or while testing according to the [[Adjust the Microphone and Speaker volumes|above]]). | </li><br><li>Most PC's are set up that you need to keep your PTT (PushToTalk) button pushed as long as you talk. But there are also sound-cards which open for talk with the first push/release and close it with the second push/release. Test your system how it works (may be while trying to record something or while testing according to the [[Adjust the Microphone and Speaker volumes|above]]). | ||
</li><br><li>If the FGFS sound-volume does not match your FGCOM-volume: | </li><br><li>If the FGFS sound-volume does not match your FGCOM-volume: | ||
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Try to keep in mind: FGCOM is proven to work! So if there are problems look also for surrounding PC-features like unique hardware, software, etc. | Try to keep in mind: FGCOM is proven to work! So if there are problems look also for surrounding PC-features like unique hardware, software, etc. | ||
<br><br> | <br><br> | ||
====High Quality Sound-Cards==== | |||
Especially “high quality” sound-cards may get you into trouble, because e.g.: | |||
*they may monitor how long the microphone was not used and switch it off after some timespan (without you noticing it) | |||
*during reboot or restart they may initiate with values out of a special profile instead of reusing the “last used” values | |||
*or they may set some slide controls to “0” (especially microphone sliders) | |||
*some do switch the microphone only after pushing '''and''' releasing the space-bar – while we want to change the microphone-status only while the space-bar is pushed down! (This may not affect a PTT asigned to a joystick)<br> | |||
So know your standard settings and check if they have changed (without your written permission!) | |||
<br><br> | |||
====Special for Linux (.alsoftrc)==== | |||
(ref [[Linux software audio mixing with FlightGear]]) <br> | |||
check your Home-directory (“~/”) for a file "'''.alsoftrc'''" | |||
(remember that the “show hidden files” must be enabled!) | |||
*if ".alsoftrc" does not exist | |||
**Check if there is a (old version) ".openalrc" | |||
***if yes: Check if you really use the old OpenAL library and not the newer OpenAL-soft library. If still have the old you put something like this in ".openalrc": | |||
(define devices '(alsa)) | |||
(define alsa-out-device "plug:dmix") | |||
**if not, create a new ".alsoftrc" file and insert something like the following into it: | |||
format = AL_FORMAT_STEREO16 | |||
cf_level = 1 | |||
drivers = alsa | |||
[alsa] # ALSA backend stuff | |||
device = plug:dmix | |||
capture = plug:dsnoop | |||
The system wide OpenAL-soft configuration file may be /etc/openal/alsoft.conf or similar. It usually contains comments describing all possible configuration options. | |||
<br><br> | |||
====USB-Headsets-Problems with Linux (Ubuntu)==== | |||
The following is based/verified on Ubuntu, but should be similar on other distributions: | |||
*If Recording is ok '''and''' the f910-Test looks alright in the window, '''but''' there is no delayed response: | |||
**type "cat /proc/asound/modules" into the command window, e.g.: | |||
$ cat /proc/asound/modules | |||
0 snd_usb_audio | |||
1 snd_hda_intel | |||
**If that displays multiple devices (as shown in the above list, which is the result '''after''' doing the following!), then the USB-Headset should be in the "0" position. If this is not the case, notice the name of your USB-device and edit it. e.g.: | |||
"sudo gedit /etc/modprobe.d/alsa-base.conf" | |||
**add as last line into that file, e.g.: | |||
options snd_usb_audio index=0 | |||
<br> | |||
====Festival==== | |||
*If you use '''Festival''' (the Text/Speech AddOn) | |||
**and | |||
*** it works OK when running alone | |||
*** but runs int error "can't open /dev/dsp" when running with FGFS (and/or other applications) | |||
** then add a TextFile ".festivalrc" into your home-directory, containing: | |||
(Parameter.set 'Audio_Command "aplay -q -c 1 -t raw -f s16 -r $SR $FILE") | |||
(Parameter.set 'Audio_Method 'Audio_Command) | |||
=== Where to find the volume controls === | === Where to find the volume controls === | ||
Please be aware that FGCOM is used on many very different PC's, Notebooks, etc. under very different Operating-Systems and with very different Sound-Cards. So the following basic concepts may not fit your actual system 100%. In addition you may have to check your actual System and/or unique Sound-Card manuals! | Please be aware that FGCOM is used on many very different PC's, Notebooks, etc. under very different Operating-Systems and with very different Sound-Cards. So the following basic concepts may not fit your actual system 100%. In addition you may have to check your actual System and/or unique Sound-Card manuals! | ||