Digital sound recorder with ARM microcontroller and SD card

Author

Mateski, S. ; Anastasovski, Z.

Author_Institution

Inst. of Electron., Ss. Cyril & Methodius Univ. in Skopje, Skopje, Macedonia

fYear

2012

fDate

20-22 Nov. 2012

Firstpage

1741

Lastpage

1743

Abstract

This paper describes how to record, store and play back sound using ARM7 microcontroller LPC214x series with A/D converter and SD card. This paper shows in detail the usage of the A/D converter for signal processing, the Serial Peripheral Interface - SPI - for accessing the external SD card and the D/A converter for play back. Typical applications that would require one or more of these blocks are temperature loggers, telephone answering machines, or digital voice recorders.

Keywords

analogue-digital conversion; audio recording; audio signal processing; digital-analogue conversion; memory cards; microcontrollers; peripheral interfaces; speech processing; A/D converter; ARM7 microcontroller; D/A converter; LPC214x series; SPI; digital sound recorder; digital voice recorders; external SD card; serial peripheral interface; signal processing; telephone answering machines; temperature loggers; Connectors; Data processing; Embedded systems; Microcontrollers; Phase locked loops; Programming; Time frequency analysis; ARM7 microcontroller; SD card; play back sound; record;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Forum (TELFOR), 2012 20th

Conference_Location

Belgrade

Print_ISBN

978-1-4673-2983-5

Type

conf

DOI

10.1109/TELFOR.2012.6419564

Filename

6419564