Need help for my final project- ISD chips

  • Thread starter Thread starter TheCresent
  • Start date Start date
  • Tags Tags
    Final Project
AI Thread Summary
The project involves using ISD2590P chips to record and playback audio messages triggered by buttons. Each button will correspond to a different audio output, with a maximum recording time of 90 seconds. The user plans to utilize a PIC microcontroller to manage the button inputs and extract audio from specified addresses on the ISD chip. A key concern is whether the playback will stop at the end of the recorded message or at the internal End Of Message (EOM) marker. Testing the chip's functionality with a 90-second message is suggested to determine the playback behavior.
TheCresent
Messages
9
Reaction score
0
For this project, I need about 10 input as buttons and each input produce different output. Its output is the playback of audio message which is being record in the ISD Chip.

I plan to use ISD2590P chips which will be able to record of about 90second only, which is more enought for me. I will record the audio message by using addressable which mean record start from the specified address. After the audio messages have been recored, I plan to use PIC to set the port of it as the input which are the buttons and extract the audio file of the specified address from the ISD chips.

Do you guys think this will success? The only thing I worry about is that the audio messsage playback at the specified address will play till the end of the whole recorded message? do u think will or it will only play till end of the internal End Of Message (EOM) marker which mean a portion of the audio message??
 
Engineering news on Phys.org
i used to have some of those when radio shack sold them.

build it and record a 90 second message, keep just a8 high and see if the chip allows outside control of timing, this data sheet
 
Hi all I have some confusion about piezoelectrical sensors combination. If i have three acoustic piezoelectrical sensors (with same receive sensitivity in dB ref V/1uPa) placed at specific distance, these sensors receive acoustic signal from a sound source placed at far field distance (Plane Wave) and from broadside. I receive output of these sensors through individual preamplifiers, add them through hardware like summer circuit adder or in software after digitization and in this way got an...
I have recently moved into a new (rather ancient) house and had a few trips of my Residual Current breaker. I dug out my old Socket tester which tell me the three pins are correct. But then the Red warning light tells me my socket(s) fail the loop test. I never had this before but my last house had an overhead supply with no Earth from the company. The tester said "get this checked" and the man said the (high but not ridiculous) earth resistance was acceptable. I stuck a new copper earth...
Thread 'Beauty of old electrical and measuring things, etc.'
Even as a kid, I saw beauty in old devices. That made me want to understand how they worked. I had lots of old things that I keep and now reviving. Old things need to work to see the beauty. Here's what I've done so far. Two views of the gadgets shelves and my small work space: Here's a close up look at the meters, gauges and other measuring things: This is what I think of as surface-mount electrical components and wiring. The components are very old and shows how...
Back
Top