Saving audio in microcontroller.

[koolguy]

Hi ,

is there any possibilities to save small few sec audio in micro controller like Pic16f877a and how, will it work??

 

[misterT]

I never thought I would say this, but now you are giving just a little bit too much info.. "sex audio".

 

[jpanhalt]

I will try to resist the temptation to mention a moanostable oscillator, but resistance is futile....

Back OT, or what is probably OT, did you (Ritesh) search on audio recording with the 16F877a?

Here's a quickie: https://hackaday.com/2011/09/03/pic-based-voice-recorder/

It uses an MMC card for storage.

John

 

[Ian Rogers]

Also here... using a pic16f877a https://www.moty22.co.uk/index.php

 

[gabeNC]

Here's a quickie

I see what you did there.... thanks for the laugh.

 

[koolguy]

I never thought I would say this, but now you are giving just a little bit too much info.. "sex audio".

I will connect colour sensor with Uc and uc wil speech like robots ''Its REd..''

 

[misterT]

I will connect colour sensor with Uc and uc wil speech like robots ''Its REd..''

Funky..

 

[koolguy]

OK, can what memory device can be used pendrive/EEPROM 24xx series/ memory card??

 

[misterT]

OK, can what memory device can be used pendrive/EEPROM 24xx series/ memory card??

Memory card could be the most convenient.. I would choose an SD card.
https://nerdclub-uk.blogspot.fi/2012/10/playing-audio-with-pic-16f1825.html

 

[Nigel Goodwin]

OK, can what memory device can be used pendrive/EEPROM 24xx series/ memory card??

Don't even consider a USB drive - VERY, VERY difficult to drive, as you need a processor with a USB master (almost all USB capable processors are USB slave only).

 

[Brian Griffin]

Don't even consider a USB drive - VERY, VERY difficult to drive, as you need a processor with a USB master (almost all USB capable processors are USB slave only).

There are tons of layers for USB drive if need driving, and consumes a lot of memory. High end ARM processors are available for this, but they are not in prototyping form.

Some simple audio modules like the "WTV-020" (search in eBay and some local stores *might* stock up with these) with SD-Card slots actually helps a small microcontroller to play short pieces of audio files. Just send some commands to the module with the card inside and there you go.

I have made a WAV player using PIC18F and PIC32 with a high bitrate (44.1kHz) but it requires the MDDFS and the SD-Card slot.

 

[tvtech]

Hi ,

is there any possibilities to save small few sex audio in micro controller like Pic16f877a and how, will it work??

LOL

This is really funny. All along I thought you were a hard working "student" maybe.

Regards,
tvtech

 

[Brian Griffin]

He meant "few seconds". The letter "c" can be confused with "ts", "x" and "kh".

Anyway, if the user needs to put wave files inside the SD-Card with the computer, he need to put the FAT16 driver in the microcontroller too. That, and that layer is not easy to write, and consumes a lot of ROM and RAM inside.

Or, just use the "WTV-020" modules.

 

[tvtech]

He meant "few seconds". The letter "c" can be confused with "ts", "x" and "kh".

Anyway, if the user needs to put wave files inside the SD-Card with the computer, he need to put the FAT16 driver in the microcontroller too. That, and that layer is not easy to write, and consumes a lot of ROM and RAM inside.

Or, just use the "WTV-020" modules.

OK Brian, now I see. Languages were never one of my strong points..

Thanks for the help

Regards,
tvtech

 

[Brian Griffin]

OK Brian, now I see. Languages were never one of my strong points..

Thanks for the help

Regards,
tvtech

I dealt with a lot of Chinese-education students who mostly could not speak English well. In the end, I have to dissect whatever they said and "retranslate" again. Many confusions like "L" and "R" (got that a lot), "Z" and "ch"/"g" (saw one of my classmates written "Dizimon" instead of "Digimon"), "a" pronounced as "ä" (the 'a' in cat) and a lot more. What is worse is, a portion of them thinks that their English is all good until they can't write a simple sentence!

I'm not strong at languages - I struggled badly at Chinese. For 20 years of exposure, I couldn't even have a simple conversation in Chinese. I had more luck learning Russian or Dutch.

Apart from this, playing audio files in microcontroller is not a simple and a direct task. I'll summarize again:

1.) Get a small audio player module like "WTV-020". It works pretty well but with a small cost.

2.) Get a small PIC32 microcontroller (DIP form like PIC32MX120F032) with a lot of RAM. Use the Microchip's MDDFS and write a double-buffering scheme to play the wave file.

3.) Use the PIC32 microcontroller, and integrate the Microchip's Speex library.

Avoid using a USB flash drive as it's terribly complicated. SPI/I2C EEPROMs don't hold a lot of audio data unless if it's using specialized audio compressions like Speex. (not tested by me, I'm guessing)

 

[koolguy]

I found lot of link using 877a as audio player.....

 

[be80be]

I found lot of link using 877a as audio player.....

lol may as well use the "WTV-020" modules

 

[koolguy]

Is there any other way then using this module??
can we use Two-wire Serial EEPROM

 

[misterT]

Is there any other way then using this module??
can we use Two-wire Serial EEPROM

Difficult to say without knowing exactly what you are doing. Serial eeprom might be too slow.

 

[koolguy]

Difficult to say without knowing exactly

i don't require high quality sound, just sound....