Audio (voice) - Stock 9X PCB

[ReSt]

Thanks for that info.
If the capacitive load from the trim switches is that problem, couldn't we modify these resistors/capacitors ?

Reinhard

[hageha]

as possible are 100nF for debounce sized abundant.

[LTMNO]

Gentlemen, thanks for the help and methods of testing...
Oliver, just followed your last post... here are the findings...

with no writing on picture

I tested all Blue Dots to the Green ones...
and then I took the Ohms Reading from all Resistors... from Top to Bottom of Resistor.

I had the setting at 200k for all but 2 at 20M on the Ohms Meter

[Oliver]

Updated repository:
Added #define for CPU freq
Change uart&timer initialization calculated from F_CPU
Removed some old commented code
Added DEBUG mode

I DIDN'T REBUILD .HEX!
Mike, please, check my changes before, to be sure it is without mistakes.

Bootloader code, as I understood, don't need any changes for 16MHz rebuilding.

[MadScientist]

hey guys. I have a question for you. (i read part of this thread but not the entire 99 pages)

I am setting up a 4 wheel steer car, and using the 9XR (i had asked for a 9x but he ordered a 9xr, but thats ok) . the thread for that is here ... viewtopic.php?f=35&t=2567

what i would like to do, is use the voice module, but i need it to say different things. for example, my !thr/thr switch is a limit switch for max throttle so when in the !thr setting id like for it to say "throttle limits active" and when in THR say "throttle limit overide"

I also have a 2 other built in functions called ATR and Steering bias that i would like to use...

would it be possible to get these custom done and added in? youll have to forgive my lack on knowledge. there is still alot of stuff i dont understand about er9x and this controller and its mods. thanks!!

[GTiDon]

You can create any sound you want. And assign it to jst about any function. I just dont know if there is voice yet on the 9xr

Sent from my LT18i using Tapatalk 2

[man-bis]

I'm sure there are no large differences in voice modification 9x and 9xr

[jhsa]

no, but the problem is there is no space in the 9xr for the voice module

[hageha]

There's something I'm working on.
Unilaterally, 0805, without RS232, with MicroSD on it 46x33 mm

[jhsa]

Looking very good Hans.. Maybe people could fit this one in the 9XR? Not much space in there..

[LTMNO]

There's something I'm working on.
Unilaterally, 0805, without RS232, with MicroSD on it 46x33 mm

just simply awesome... really amazing Hans...

[LTMNO]

Gentlemen, its been a while and I know everyone is missing my issues, so I thought I would add another post
I was working with Joao and he felt it would be good to add an Audio file to the post depicting what sounds to be a problem with the Atmega and or the Crystal.

The following Audio files were recorded from my new H-Board Version #2. All parts are the same as the First Iteration, both boards are doing the exact same thing so its clear that the problem is repeatable.

I have added my Parts Lists as to maybe something is wrong component wise but the Test Program works perfectly and the Main Program works as well.
The only problem is that the Audio is very faint and this new issue that Joao has identified which is some unique noise that is created when the audio is spoken.
This anomoly is not the Hum from the Module but another noise.

Please listen....

The first file is the Normal Amod_Last.Hex running in the Tx. ( I was flipping the Flap Switch ON and OFF )

TestAudio_Normal.mp3

(100 KiB) Downloaded 454 times

The second file is the Test Program Amod_Last_Test.Hex outside the Radio running off of the Battery and the LED connected Blinking.

TestAudio_Testing.mp3

(25.82 KiB) Downloaded 642 times

Please feel free to comment if you should believe that there might be a bigger problem at play here.

-Hans, I didn't try the Resistor removal yet, I will do so if this sound that is generated is not a problem.

Please note that the sound was amplified a bit so that you can hear it better.

Part List

[jhsa]

Mike, what do you think could do this problem? the noise before the voice starts and also the noise during the file being played.. please note that on the second sound file Pino posted above, the one from the test .HEX file, the noise that can be heard during playback is not the same noise we get from the amp for being close to the RF module.. it is related to the PWM I suppose..

Could a bad/wrong XTAL do this? I guess some crystals have internal capacitors and some don't??

Thanks,

João

P.S. - Could all this also explain why he has such a low volume? we spent a few hours on the phone the other day doing some measurements and couldn't find any problem with his board. Also he built another board and has exactly the same problem?

[hageha]

Hi Pino,
Please check C18!
In your bill is 4μ7 - It must be 4n7!
C 18 goes from pin3 /LM386 to GND!
This explains also the rattle!
Hans

[jhsa]

Also, can you try another SD Card? did you mention before you're using a partitioned one?
Good catch on the capacitor Hans.. he could have a wrong one there then..

João

[LTMNO]

Hi Pino,
Please check C18!
In your bill is 4μ7 - It must be 4n7!
C 18 goes from pin3 /LM386 to GND!
This explains also the rattle!
Hans

This is interesting, so 4.7 or 4n7 is in nF and in uF or MicroFarad it would be 0.0047uF

Then this is correct, I would have the wrong Capacitor... I believe mine is 4.7uF (just confirmed, it is.)

Screen Shot 2013-01-23 at 8.43.33 AM.png (7.08 KiB) Viewed 11142 times

Screen Shot 2013-01-23 at 8.43.04 AM.png (5.4 KiB) Viewed 11142 times

The good news, is that i have 4.7nF 472(4700) Capacitors.

I will install them now.

Thanks for the catch...

[LTMNO]

Well, Thanks to you gentlemen!
The MegaSound9x is fully functioning...
Sound is perfect and clear.
Just one Cap made the difference, and all because I didn't convert or got confused on the conversion from 4n7(nF) to uF

Thanks Hans for catching that and to Joao for working with me tirelessly on debugging.

I will fully document a parts list with Digi-Key Order so that it is easy for the next person to order the right parts.

[jhsa]

Hey, great news.. what about that sound before the voice started? is also gone?

[LTMNO]

Hey, great news.. what about that sound before the voice started? is also gone?

To be honest, I think there is something there that is very faint only on start of the speaking. But the sound is great. Very clear.

[jhsa]

congratulations... You can probably now fix the other H board as well as the problem might be the same.

[hageha]

We should have just immediately look right!
German proverb says: Hindsight you are smarter!
"Hinterher ist man schlauer"

[LTMNO]

This is true. very true.

[jhsa]

it's very easy to solder a wrong capacitor, as there are no markings.. I normally check all my caps with the multimeter before I solder them.. If the parts list would not have been posted, we would probably never find the problem..
We will have to keep this in mind in the future when helping someone else troubleshooting his board.

[LTMNO]

I agree with you it is why I'm going to take on the task to create a Guide. With detailed parts list, pictures, etc.
I need to give back to the forum.

[tigar]

Well done Pino.
Now start troubleshooting your Oliver boards... I can wait for the results

[hageha]

Pino needs a multimeter, with which he can measure capacity!
Then we could drink our beer before 2 weeks!

[jhsa]

Pino, is using a nice tool to program the sound module.. And I think it is working very well.. I'm sure he will share it with us.

[LTMNO]

With pleasure

[skylark]

Congratulations Pino. You've made it at last. Well done.
Stan.

[LTMNO]

Hello Gents, just completed the Haptic Mod with the MegaSound9x.
My Radio is finally closed with all screws back on.., I am working thru one issue with the Aileron/Throttle switches still on... but in the meantime,
I created a Guide, please view at your leisure, it is tested and working... Gotta Love it!