!!!NEED HELP!!!add in recorder voice in 18f4520

[caltex]

hi guys,


how do i add in a pre-recorder voice in the pic....and output it out through a speaker???


many thanks for your replies......

 

[blinkstar88]

i;m absolutely no idea, anyone?

 

[Nigel Goodwin]

Store the audio data as a table in the program memory, them read it sequentially and play it back out through a digital to analogue converter. Don't forget the low pass filter after the D2A.

 

[caltex]

has Anyone comes across this?

 

[Nigel Goodwin]

has Anyone comes across this?

What part of my explanation didn't you understand?.

 

[3v0]

[FONT=Arial,Helvetica,Verdana,Geneva,sans-serif][SIZE=-1] BTc PICsound One-bit sound recording/playback on a PIC [/SIZE][/FONT]

 

[kjennejohn]

Thanks, 3v0, that was a good solution for Q&D audio messages.
kenjj

 

[caltex]

Store the audio data as a table in the program memory, them read it sequentially and play it back out through a digital to analogue converter. Don't forget the low pass filter after the D2A.

hi, i've converted the audio data to .asm table already. The problem now is, what is the code to play the audio? how shld i write it?

sorry about it.. im quite new to programming PIC

 

[bananasiong]

Read from where you store the audio data, then use external DAC, either serial or parallel interface. You may need to amplify the converter's output.

 

[Nigel Goodwin]

hi, i've converted the audio data to .asm table already. The problem now is, what is the code to play the audio? how shld i write it?

Read first entry, output to D2A, delay for next byte.
Read second entry, output to D2A, delay for next byte.
Repeat until all done.

The delay time is dependent on your sampling rate.

 

[waytronic]

Hello! Could u send me your PIC, I can't see it. send it to my e-mail: wtcherrylau@gmail.com . let's me checke it. We are voice recorder ic, voice chip, voice modules manufacturer in China.
Perhaps , I CAN HELP.

Cherry
website: **broken link removed**
MSN: wtcherry@live.cn