Analog Devices Digital Delay Demo for the ADSP-2181 EZ-Kit Lite

This document is a technical note on using Analog Devices' DSP components and development tools. It describes a simple digital delay demonstration using the ADSP-2181 EZ-Kit Lite development board. The board is a low-cost evaluation/development board based on the ADSP-2181 digital signal processor. The document also provides information on the software and sample applications included with the development board.


Analog Devices Digital Delay Demo for the ADSP-2181 EZ-Kit Lite - cover page
Brand
Analog Devices
Category
Other Electronics
Document type
Application Note
Language
English
Pages
4
File format
PDF
File size
217 KB
Published
03 August, 2012
Updated
28 September, 2023
MD5 checksum
3E912D1442BEE2C015DA653396CBC5E6

About this manual

This document provides technical instructions for creating a digital delay demonstration using the ADSP-2181 EZ-Kit Lite development board. It details the process of modifying the existing MIC2OUT source code to utilize circular buffers for storing audio samples, thereby creating a time delay effect between the input microphone and output speakers.

What's inside

  • Digital Delay Demo
  • MIC2OUT Application
  • Circular Buffer
  • ADSP-2181 EZ-Kit Lite
  • Source Code Modification
  • Interrupt Service Routines
  • Data Buffer Declarations
  • Sample Rate

Specifications

Sample Rate8Ksps
Sample Time125 uS
Buffer Length Example1024 bytes

Frequently asked questions

What is the sample rate of the codec used in this demo?

The codec has a sample rate of 8Ksps.

How is the digital delay implemented in the code?

The delay is implemented by storing current samples in a circular buffer and reading from previous locations.

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