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'[PIC]: Project with sound'
2005\09\15@205259 by Joseph Pantoga

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I want to make a project where you press a button and a short sound (under 5 seconds) plays from a speaker. I intend it to be like one of those dolls, where you press the hand and it "speaks" funny phrases. I only want it to say one phrase, and I want to limit the amount of electronics needed, just a bare minimum circuit. Does anyone know where I might find a good schematic, as I have not done anything with sound with PIC's.

2005\09\15@210004 by dal

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www.romanblack.com/picsound.htm

Or ADPCM techniques on 16 series pics.
Microchip app note AN643

Winbond has several stand alone devices for this as well...

-Dal Wheeler

{Original Message removed}

2005\09\15@214412 by M. Adam Davis

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You may be well served by Roman Black's 1 bit sound program:
http://www.romanblack.com/picsound.htm

There are a number of methods of doing this, but the primary questions are:
1. How long does it play
2. What should the quality be

These will dictate how fast the PIC must run, how much storage you
need, and the circuit for reproducing the sound.

-Adam

On 9/15/05, Joseph Pantoga <spam_OUTjpantogaTakeThisOuTspamgmail.com> wrote:
> I want to make a project where you press a button and a short sound (under 5
> seconds) plays from a speaker. I intend it to be like one of those dolls,
> where you press the hand and it "speaks" funny phrases. I only want it to
> say one phrase, and I want to limit the amount of electronics needed, just a
> bare minimum circuit. Does anyone know where I might find a good schematic,
> as I have not done anything with sound with PIC's.
> -

2005\09\15@215723 by David P Harris

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Joseph Pantoga wrote:

>I want to make a project where you press a button and a short sound (under 5
>seconds) plays from a speaker. I intend it to be like one of those dolls,
>where you press the hand and it "speaks" funny phrases. I only want it to
>say one phrase, and I want to limit the amount of electronics needed, just a
>bare minimum circuit. Does anyone know where I might find a good schematic,
>as I have not done anything with sound with PIC's.
>  
>
Here's a recent board that plays wav files from SD cards, based on an
AVR: http://www.pricom.com/Trains/DreamPlayer.html
Quite nice as it has triggers for 4 tracks, and generates outputs at
start, end, or the duration of each track.
I've got one.

David


2005\09\15@224307 by Jinx

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A Winbond ISD would be the least fuss way

http://www.winbond-usa.com/mambo/content/view/36/140/

The bandwidth isn't great but they're pretty versatile

2005\09\15@231626 by Joseph Pantoga

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I want the clip to be at an understandable quality at a short length. Thanks for all the replies, I'm still pouring over those links.

2005\09\15@231730 by Joseph Pantoga

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I forgot to mention. I want the sound to be full audio clips. Not just monotones. Im looking for it to say something like "It's me! Mario!."

2005\09\16@001330 by Harold Hallikainen

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I agree the ISD chips are pretty easy to use. I used an 8 minute one in
the BrailleMaster (http://www.brailletutor.com). Also, have a look at
Roman Black's one bit sound playback at
http://www.romanblack.com/picsound.htm .

Harold

> A Winbond ISD would be the least fuss way
>
> http://www.winbond-usa.com/mambo/content/view/36/140/
>
> The bandwidth isn't great but they're pretty versatile
>
> -

2005\09\16@005948 by Jinx

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> I want the clip to be at an understandable quality at a short length

If you can "sweeten" the sound before it goes into whatever you
play it back with, that will help. I recently used an ISD2532 for
a speech project, driven by a 12F675. The tonal qualities of the
sound sample I was given weren't very good and it sounded even
worse after going through the ISD. It was very much improved
by adjusting the tone with an audio processor to something that
more suited the ISD and the small speaker. I've used Goldwave
for a very long time for things like this. The free demo is, AFAIK,
still not majorly crippled (my 4.x isn't, don't know about 5.x) and
is extremely useful. http://www.goldwave.com. There are others around
too, like Cool Edit. Google for sound editor or audio processor

The output of an ISD might be a little on the low side for you. I
made a small booster amp with an LM386. Power to this was
enabled by rectifying part of the ISD output to drive a transistor
switch. When the ISD output turns off, so does the booster amp.
The 12F675 also shuts down, resulting in under 1uA quiescent
current for the whole thing

2005\09\16@011536 by Chen Xiao Fan

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I came across this one in the Microchip fourm dsPIC section.
http://forum.microchip.com/tm.asp?m=111821
Maybe this will be interesting to the people here as well.

Regards,
Xiaofan


>From the author:
"I've made a single chip MOD music player using the dsPIC30F3012.
It plays four channels of digital audio at 43KHz, 9-bits, mono and
can be easily built on a prototyping breadboard (very few components).
You can find my schematics and example firmware available under GNU
GPL on my website at:
http://www.k9spud.com/traxmod/

K9spud TRAXMOD Digital Audio Player

Eventually, I would like to get an SD Card connected to my dsPIC so
that I could play much larger MOD files than can fit inside the tiny
program memory space of the dsPIC chip. So far though, I have not been
able to get that to work."



{Original Message removed}

2005\09\16@072842 by olin piclist

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Joseph Pantoga wrote:
> I want to make a project where you press a button and a short sound
> (under 5 seconds) plays from a speaker. I intend it to be like one of
> those dolls, where you press the hand and it "speaks" funny phrases. I
> only want it to say one phrase, and I want to limit the amount of
> electronics needed, just a bare minimum circuit. Does anyone know where
> I might find a good schematic, as I have not done anything with sound
> with PIC's.

Check out my HAL project at http://www.embedinc.com/pic.  There are a lot of
similarities.  However, if you want recognizable voice you will need a
significantly higher sampling rate than I used.  Fortunately there are newer
chips with lots more memory available than back when I did this project.
The HAL project can store about 7 seconds of sound at the very low sample
rate I used.


*****************************************************************
Embed Inc, embedded system specialists in Littleton Massachusetts
(978) 742-9014, http://www.embedinc.com

2005\09\16@081952 by Russell McMahon

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>> I want to make a project where you press a button and a short sound
>> (under 5 seconds) plays from a speaker.

Also look in the archives for Roman Black's one bit sound output.
AFAIR he used ADPCM and got reasonably low data rates.


       RM

2005\09\16@083503 by Russell McMahon

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>> I want to make a project where you press a button and a short sound
>> (under 5 seconds) plays from a speaker.

Also look in the archives for Roman Black's one bit sound output.
AFAIR he used ADPCM and got reasonably low data rates.


       RM

2005\09\18@113921 by S Bakaletz

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This month's EPE Magazine has a project that might be just what you need.

http://www.epemag.com


----- Original Message -----
From: "Joseph Pantoga" <.....jpantogaKILLspamspam@spam@gmail.com>
To: <piclistspamKILLspammit.edu>
Sent: Thursday, September 15, 2005 17:52
Subject: [PIC]: Project with sound


I want to make a project where you press a button and a short sound (under 5
seconds) plays from a speaker. I intend it to be like one of those dolls,
where you press the hand and it "speaks" funny phrases. I only want it to
say one phrase, and I want to limit the amount of electronics needed, just a
bare minimum circuit. Does anyone know where I might find a good schematic,
as I have not done anything with sound with PIC's.

2005\09\19@004654 by kravnus wolf

picon face
I am current doing a door bell.
Things you may want to look at.

interrupts.
timer0
physics - frequency(sound is basically sin waves)
basic setup for the pic to work.

regards,
john


--- S Bakaletz <.....bakaletzKILLspamspam.....eriecoast.com> wrote:

> This month's EPE Magazine has a project that might
> be just what you need.
>
> http://www.epemag.com
>
>
> {Original Message removed}

2005\09\19@074220 by olin piclist

face picon face
kravnus wolf wrote:
> I am current doing a door bell.

Wow, do you get a good charge out of that?

*****************************************************************
Embed Inc, embedded system specialists in Littleton Massachusetts
(978) 742-9014, http://www.embedinc.com

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