Summary of DSPIC WAV RECORDER WAV PLAYER PROJECT
This article describes a DSPIC33FJ64GP802-based WAV recorder and player project. While source code is unavailable due to resource constraints, the design supports MMC/SD/SDHC cards for recording mono audio at 16kHz and playing stereo WAV files at 44.1kHz. It features an LCD display, RC5 remote control, microphone input, and line-in connectivity using FAT/FAT32 file systems.
Parts used in the DSPIC Wav Recorder Wav Player Project:
- DSPIC33FJ64GP802-I/SP microcontroller
- MMC / SD / SDHC memory card
- Microphone input unit
- Line-in audio source connector
- 2 × 16 LCD screen
- RC5 remote control
- LM317 voltage regulator (78xx series)
- 74HC595 shift register
- LM833 operational amplifier
- Potentiometer for sound settings
Circuit DSPIC33FJ64GP802-I/SP software has a micro-controller based on the hex, but unfortunately do not have the source code for the microcontroller DSPIC with the series level at least because of resource constraints of hardware design department can give more… Electronics Projects, dSPIC Wav Recorder Wav Player Project “dspic projects, microchip projects, microcontroller projects,
Circuit DSPIC33FJ64GP802-I/SP software has a micro-controller based on the hex, but unfortunately do not have the source code for the microcontroller DSPIC with the series level at least because of resource constraints of hardware design department can give more or less the idea.
MMC-SD-SDHC memory card with DSPIC `s communications, key combinations, microphone input and output processing, feeding floors, DSPIC IR communication all in one collected in a project of this type of design for your studies can be an example
DSPIC WAV PLAYER FEATURES
Supported memory cards MMC / SD / SDHC
Mono 16kHz stereo WAV audio recording
44.1kHz WAV playing sound recordings
Input and output sockets
FAT/FAT32 file system (if any operating system)
2 × 16 LCD screen on the record / playback information display
RC5 remote control or intelligent control
Signal to noise ratio:-70dB (22Hz to 22kHz) with 1.6V RMS
Total harmonic distortion THD + N at 1kHz 0.7%
DSPIC RECORDER/PLAYER INPUT OUTPUT UNITS
Line of section connect any audio source, and relax on the card can record. Connect a microphone to the Mic in section register and you can listen to sounds in the environment memory card socket on the pcb board also had a pot of sound settings for throttle opening
THE INFORMATION DISPLAYED ON THE LCD:
Audio playback information, recording time, recording the name frequency, mono-stereo information, the volume, and you can see the status of the card memory. Working with 12volt DC supply circuit regulated operations and 78xx series LM317 regulators provided with 2 × 16-lcd audio output is driven by 74HC595 upgraded with lm833
source : http://www.siliconchip.com.au/cms/A_111521/article.html
dSPIC Wav Recorder Wav Player Project schematic pcb picmicro source code files
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-7773.zip
Source: DSPIC WAV RECORDER WAV PLAYER PROJECT
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What memory cards does the device support?
The project supports MMC, SD, and SDHC memory cards. -
Can I record audio with this circuit?
Yes, it records mono audio at 16kHz and can play back stereo WAV files at 44.1kHz. -
How is the audio output driven in this design?
The audio output is driven by a 74HC595 upgraded with an LM833. -
Does the system use a specific file system?
It utilizes the FAT or FAT32 file system if supported by the operating system. -
What power supply does the circuit require?
The circuit operates with a regulated 12-volt DC supply. -
How do I connect external audio sources?
You can connect any audio source via the Line section or a microphone to the Mic in section. -
Is remote control functionality available?
Yes, the project includes support for RC5 remote control or intelligent control. -
What information is displayed on the LCD?
The LCD shows playback info, recording time, filename, frequency, mono-stereo status, volume, and card status.
