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Forum Index : Microcontroller and PC projects : Did you know S.A.M.? (text to speech)
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| matherp Guru  Joined: 11/12/2012 Location: United KingdomPosts: 8579 |
No, it is as per last post on page 8 except that I compiled it for MX150. Interested to hear if it now works on MX150? |
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| astro1 Regular Member  Joined: 26/06/2016 Location: AustraliaPosts: 51 |
Great use for some spare MX150s. Working well on a MX150. I'll need to add the output filter. Cool. :') Edit: Nice with a filter. Edit-2: Good on the MX170 too. |
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| Frank N. Furter Guru Joined: 28/05/2012 Location: GermanyPosts: 813 |
I also tried an MX150 - it works like an MX170. CircuitGizmos is right: Fs and Ss don't sound good. SAM on website sounds better... @astro1: What kind of filter did you use? Frank |
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| astro1 Regular Member Joined: 26/06/2016 Location: AustraliaPosts: 51 |
Filter as per MM+ manual, page 24. |
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| twofingers Guru Joined: 02/06/2014 Location: GermanyPosts: 1133 |
Hmm, I think the filter in the MMBasic-Manual is a low-pass filter plus a voltage divider. Maybe one resistor (1k) and one capacitor (47nF) should be sufficient. For Frank (Online calculator, german): https://www.electronicdeveloper.de/FilterPassivTiefpassRC_1O.aspx  Michael BTW: good job!  |
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| Frank N. Furter Guru Joined: 28/05/2012 Location: GermanyPosts: 813 |
@twofingers: Thanks a lot! Did you know this site? http://www.sengpielaudio.com/Rechner-RCglied.htm There are many good calculators on this site: http://www.sengpielaudio.com/Berechnungen.htm ... and for all English speaking: http://www.sengpielaudio.com/calculator-RCpad.htm http://www.sengpielaudio.com/Calculations03.htm Try it out! Frank |
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CircuitGizmos Guru Joined: 08/09/2011 Location: United StatesPosts: 1421 |
Got crazy busy over the weekend, but yes it does! Micromites and Maximites! - Beginning Maximite |
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| twofingers Guru Joined: 02/06/2014 Location: GermanyPosts: 1133 |
The new SAM runs satisfactorily on a MX150 (on Micks Backpack170). The only limitation I found is the text length (~100 bytes). I guess a buffer issue - not a bug. Pinout for 28-pin is: console as per MM2 Tx_µC on pin 11 Rx_µC on pin 12 audio output - pin 7 audio Gnd (my setup) - pin 8 busy output (active high) - pin 17 @Peter Thanks a lot for your efforts! I like this SAM guy! The original has a phonetic mode that makes it possible to improve the output quality of SAM. It would also possible to create german (or whatever your preferred language is) words. I would really appreciate having this feature - only if it's easy to do. @Frank Many Thanks, great links! I was actually quite sure that you can calculate audio filters. Do you have a fully functional C compiler to create .hex files? Regards Michael |
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| Frank N. Furter Guru Joined: 28/05/2012 Location: GermanyPosts: 813 |
Hi Michael, I downloaded the latest versions of MPLABX v5.05 and xc32 v2.10 from Microchip. (The IPE version of this MPLAB X version is a disaster!!!  )I'm not sure (but I think) that the phonetic mode is also implemented in the code. I've experimented with it in the past - but I never managed to get SAM to talk. I only ever created one TTS error with it... Just for the sake of interest - which area are you from? Frank |
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| twofingers Guru Joined: 02/06/2014 Location: GermanyPosts: 1133 |
Hi Frank, I guess you got the Free Edition (will not build in PRO or Standard mode). I'm not sure which are the limitations. I've still the older versions (for CFunctions) installed. I suspect that too. Perhaps is it as simple as disabling the TextToPhonemes function? But the code is not very good readable - many Gotos and cryptic labels (reverse-engineered version). I live in the "northern territorys" of Germany. Kind regards Michael |
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| Frank N. Furter Guru Joined: 28/05/2012 Location: GermanyPosts: 813 |
Hi Michael, yes, this is the free edition. This version should be fully functional for 60 days. You should compare the original version from Sebastian (https://github.com/s-macke/SAM) and the PIC version from here (http://www.toughdev.com/content/2014/09/english-text-to-speech-on-a-pic-microcontroller/);(toughdev.com/public/SAM_TTS. zip) with our version. Have you ever tried Sebastian's PC version? Phonetic mode is implemented in this version. I live more to the south... Frank |
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| twofingers Guru Joined: 02/06/2014 Location: GermanyPosts: 1133 |
Hi Frank, and you can successfully compile Peters SAM code project? Actually I hoped that Microchip makes his C compiler complettly free in the meantime. I did. Thanks! I like the LD3320 speech recognition module on http://www.toughdev.com/content/2014/08/ld3320-chinese-speech-recognition-and-mp3-player-module/ Something to play with ... Hmm, I've tried the Windows version, the demos. I like my (Peters) MX150 version more (crystal earphones). The Armmite has also the phonetic mode. I think TTS is an impressive gimmick, well suited for use by the disabled or simply as feedback for non-display devices. as your name implies!?  Michael |
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| Frank N. Furter Guru Joined: 28/05/2012 Location: GermanyPosts: 813 |
Hi Michael, I can compile it with no problems! I copied the whole project to MPLABXProjects, opened and compiled it - I was amazed that it worked so easily! I flashed it with my PicKit3... No, I live about 250 km more towards the southeast. Frank |
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| Andrew_G Guru Joined: 18/10/2016 Location: AustraliaPosts: 840 |
Hi I've been keeping an eye on this thread, more from general interest than an immediate need, but a need may arise... I have run foul of fully understanding the incremental changes that flow through a 10-page thread. I have a mixture of "understandings" and questions: U - Peter M has engineered the code so it can be flashed (via MPLAB/PicKit3) to a 28 pin MM170? ? - is the bottom of page 8 his latest version? U - it will take text typed (say via TeraTerm) and speak it? U - it can't take input (say from buttons) and speak prepared text? (eg speech confirmation of keypad presses)? ? - is a way around this to have say x "messages" stored in a text file (edited by hand) so that event y calls up and speaks message y? ? - what components are required (especially speaker) ? - is there a simple circuit (I'm sorry but I couldn't follow the "Holy Water" one) ? - if not this, is there a sensible way to "announce" key-presses or switch activations? Many thanks, Andrew |
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| Frank N. Furter Guru Joined: 28/05/2012 Location: GermanyPosts: 813 |
Hi Andrew, - YES (and there is a hex version for a 32MX150 also available) - YES - YES - Hmmm, you need a Micromite or Arduino etc. to send the text to SAM. Otherwise you would have to rewrite the code from page 8 (which would be possible). - You can save your various texts in a Micromite (or Arduino) and respond to a keystroke or event to send the text to SAM via the UART (9600,8,N,1). Otherwise you would have to rewrite the SAM code. - you need only a flashed PIC32MX170 or PIC32MX150 and a small active loudspeaker. The sound should be better if you use the filter (as described in the Micromite Plus manual):  - You only need the circuit as described in the Micromite manual as "Basic Circuit" (even if SAM is not a Micromite). The "terminal" is now the Micromite or an Arduino, the connection with Pin11 is not absolutely necessary. Audio OUT is on pin 7 (and if desired: BUSY on pin 17)  - I would use a Micromite to react to the keystrokes and then send the respective text to SAM. Frank |
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| Andrew_G Guru Joined: 18/10/2016 Location: AustraliaPosts: 840 |
Hi Frank, Thanks for your explanation and your time in putting it together. It really is quite simple (but possibly near my limits). I can even envisage the Tx/Rx being via HC-12 (or similar) - many possibilities. (Many thanks to Peter too for his work in re-writing the code and posting it). Regards, Andrew |
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| gadgetjack Senior Member  Joined: 15/07/2016 Location: United StatesPosts: 127 |
I found a couple "spare" chips and tried this. Works great! Brings back some old memories of 8 bit computers from my past. Great work! Thanks. |
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| gadgetjack Senior Member Joined: 15/07/2016 Location: United StatesPosts: 127 |
I found my old project I had built with a chip called a SPEAKJET. It did only the sounds you had to put together to get words. That chip cost 25 dollars!!! This project sounds 10 times better and a lot cheaper!! Peter really knows his stuff! |
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| Frank N. Furter Guru Joined: 28/05/2012 Location: GermanyPosts: 813 |
@Michael: I was able to activate the phonetic mode!  It was quite difficult for me (especially with my very limited C knowledge...) Frank |
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| twofingers Guru Joined: 02/06/2014 Location: GermanyPosts: 1133 |
Hi Frank, that sounds promising!  The bigger the challenge the bigger the gain ... or something like that! Will you share your work with us? Maybe you can something say HOW you did it. Anyway: Thanks in advance and congratulations!  Michael |
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