Audio (voice) - Stock 9X PCB

[Rob Thomson]

WAV files can be saved off as a variety of formats. 8 bit mono, stereo etc.

May just need the specific format!


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[Rob Thomson]

Rob - I have the 9XR radio (from HK) in the ERSKY9x sight ....a nice new $50 DSM2 radio , with a spot for a FLSKY RF module...looks like a good hack.
By the looks of the specs of the FLSKY Radio , they have already copied the ERSKY work....
-Brent

Great to hear!

Please do consider the frsky tx when it comes out as an option too!

No guarantee, but I suspect they will go for a slightly higher quality case and gimbal on their units. But hey.. This is just speculation; and I don't know any real details yet!





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[cre8tiveleo]

...
I think the biggest problem now is fitting it in the case. It may be necessary to bend the two spring contacts to allow the sound module to fit between them. Maybe we will have to add a couple of bonding wires if, after bending, they no longer touch the board in the front half of the case.

Mike.

You don't need those two big pieces of metal.... ask Brent what I did to mine to put the Voltage regulator there... better yet... here is a pic...





You can rip it off, then you can stick a plastic standoff, and voila, perfect place to mount anything you want.

[jhsa]

Here are the specs for the new frsky TX.. I think it was already posted here on the forum though..

http://www.rcgroups.com/forums/showpost ... ostcount=1

[MikeB]

Next step for the software is to actually get something useful generating the voice output. As a first step, I'll add to the alarms that may be generated using what were the safety switches, and now double as audible alarms. Currently, for each switch, you may select either S or A (for Safety or Alarm). I'll add 'V' for Voice alarm, and then the parameter will be a number as a reference to the filename on the SD card, so 0 plays voice 0000.ad4 etc.
I shall slow down the repeat rate for these, the existing 2 seconds is not very long given the time it takes to actually play a voice sound.

We are, of course, tight on flash storage. I want to gain some back.
Over time, various alarms have been put in (e.g. height, A1, A2, RSSI, battery capacity). These are now possible using the custom switch-safety/alarm switch mechanism, so I propose to remove these 'hard coded' alarms, and leave just the custom switch-safety/alarm switch alarms.

Mike.

[jhsa]

I need to have an working unit so I can actually help.. module still on a slow boat from China

I have some ideas.. inactivity alarm, timer count down but only the same alarms we have. 30 seconds, 20 seconds, 10, and the last 5 or so..
to be able to set a voice alarm when a switch/mix is enabled, obviously all the necessary alarms like low voltage, low RSSI and all the telemetry important alarms. I think is also important to set priorities.. for example a RSSI alarms should override a mix alarm as these are more an information than an alarm..

But as I said I need to have this circuit working.. ggrrrrrrr

[MikeB]

Some things, like the beeps when you press a button, need to remain on the beeper/piezo. It takes too long for the voice system to start the sound so they would become 'disconnected', i.e. push button, wait half a second, hear beep.

Timer countdown could probably be:
"Thirty seconds"
"Twenty seconds"
"Ten seconds"
"Five"
"Four"
"Three"
"Two"
"One"
"Zero"
There won't be enough time between "Five" and "Four" to say seconds as well!

I'm trying to keep to a single version of the code, I don't really want to have a custom compiled 'voice' version on top of all the other versions we already have.

Just another thought, we have a 'spare' output from the 74HC574, this could be used for the haptic drive, it would save soldering to another processor pin.

Mike.

[jhsa]

I think that is a great idea.. and we would have one more free pin for something else

I think the sound countdown is good as you say.. no need to say seconds every second on the final 5 secs.. In fact, I think I've never heard that..

[MikeB]

In passing, we could actually have 4 more outputs, with a bit more wiring, can't easily get inputs though. Not sure what else these outputs could be used for.

I'm wondering if the timer could also say the minutes, if the minute beep is on. I usually have it on, and count the beeps to know how long I have left on the timer.
We need a queue of sounds to say, need to add all this into the code. I'm intending, for now, to limit this to 240 different voice sounds, plus eight volume levels. These will fit in a single byte to code, saves on flash usage. This is going to need some documentation, so we know which sound is 0000.AD4 etc. (plus the hardware details).

Mike.

[jhsa]

do we need more than 240? how are the numbers handled? with combination?
Yes, I have the minute beep on also, but I normally forget how many I've heard so I don't know How long I've been flying until the 30 seconds beep sound, or till I look down at the screen which can be quite dangerous if you hover a multirotor or heli in front of you

Also, would it be possible to put some of the audio information not alarm, (like voltage, or altitude.... ) on a switch that we have that information when we want it? It doesn't need to be repeating constantly.. it's non priority info. then come all the sounds we could assign to mixes, like flaps down or gear up sort of thing.. still info.
Then of course we have the priority info that comes out automatically, like all the safety stuff.. Low battery, altitude level reached, throttle not idle, thr switch not engaged, switch warning, etc.

[jhsa]

and then of course and not less important the spash screen welcome audio file, the insults and all the trivial stuff if there is space for it

Sorry, I think I'm having a brainstorm here..

[ReSt]

And I would like to have the possibility of:
whenever I switch the trainer switch I get the actual altitude.
That means, no fixed voice but it had to read the actual altitude and combine the necessary hundreds, tens and meters


Reinhard

[jhsa]

that's what I meant by having the information on a switch.. now I don't know if the trainer switch is a good idea if you use the instant trims, but I guess that could be configured and we could choose any switch we wanted? if we leave the switch on, the info would loop, like voltage and altitude, or whatever? it would be nice if we could choose also which info to hear..

brainstorm again

[Malcurin]

and all must be said by a very hot sounding female voice to make everyone at the clubs jealous of the transmitter

[jhsa]

That will be up to you, which voice.. you will be able to record your own.. I have some speech program that I will use also. there are a few on internet where you can write a text and then download the audio file..

[Crashj007]

<>
Timer countdown could probably be:
"Thirty seconds"
"Twenty seconds"
"Ten seconds"
Etc.,
<>
Mike.

Some good countdowns could be copied from Star Trek and Fifth Element soundtracks.
"Use the voice of LeeLou for all other warnings"

[jhsa]

Yep, let your imagination roll I think we will be able to play any voice we want.. we just have to record it and convert it.. then give it the right file name/number

[Crucial]

I am looking at gathering up a list of parts from digikey. I noticed that they have a few different 74hc574n chips. Specifically, there are 2 different speed chips. One is a TI chip that runs at 40MHz and the other is a NXP that runs at 133MHz. Is there any reason to get one over the other?

[cre8tiveleo]

Marge Simpson or bust!

[jhsa]

[jhsa]

I am looking at gathering up a list of parts from digikey. I noticed that they have a few different 74hc574n chips. Specifically, there are 2 different speed chips. One is a TI chip that runs at 40MHz and the other is a NXP that runs at 133MHz. Is there any reason to get one over the other?

The ones I bought in the ebay shop, they showed only 74HC574.. but when they arrived on saturday the numbers are SN74HC574N.. I think it is the same.. I tried reading the datasheet and couldn't find any difference and or reference to the last letter.. maybe I've missed it.

[Crucial]

Here is the parts list from Digikey minus the resistors.

296-1598-5-ND----------------IC OCT D-TYPE FLIP-FLOP 20-DIP-------SN74HC574N
497-4258-1-ND----------------IC REG LDO 100MA 3.3V TO-92---------3.3V reg
BC548BRL1GOSCT-ND -------TRANS NPN GP 30V 100MA TO-92-------transistors
LM7805CT-ND-----------------IC REG 1A POS 5V TO-220---------------5V reg
478-3187-ND------------------CAP CER 0.1UF 50V 10% RADIAL--------cap
338-1700-ND------------------CAP ALUM 10UF 100V 20% RADIAL------cap
V2018-ND----------------------PC BOARD .1"SP 3X3.5 SINGLE SIDE----Stripboard

[Crashj007]

Marge Simpson or bust!

"well, homer, is that really what you want to do?"

[C.João]

for "landing gear down" we could have a setting like this: play once, repeat (something) and loop

[jhsa]

you will want the loop (configurable is possible) on a switch. or it will drive you nuts

[MikeB]

A couple of pictures:

Mike.

[jhsa]

mike, how did you connect the module to the board? I'm asking because on the component layout picture there's only one row of pins.. but the module seems to have 2?

[C.João]

Very nice! not that big. how about the volume into a pair of headphones?

[jhsa]

Looks cool by the way..

[MikeB]

You only need the end row of pins from the module to connect to the stripboard, all the required signals are on this row, makes it easy to connect.

Mike.