Tag Archives: WAV

Happy Christmas and Happy New Year wishes from Attiny13

IMG_20141225_065758

by blog.vinu.co.in:

While trying to open a chinese camera pen, unfortunately the PCB inside it got damaged. Few of the PCB traces got cut and it became useless. After few days, I removed an 8 pin IC with SO8 package from the PCB. I was curious to know what it is, so I googled the part number 25FW406A but I couldn’t find any exact match. I found some part number similar to that and I concluded that it is an SPI flash. Later I got a datasheet from ‘ON semiconductor’ for a similar part -LE25U40CMD which is a 4M-bit SPI flash memory. I soldered the IC on a common board, powered it with 3.3v and interfaced it to a TI stellaris launchpad via SPI port. According to the datasheet the SPI port need to be initialized in mode 0 or 3. I tried few commands listed in the datasheet and got proper response from the chip, the CHIP ID doesn’t matches but that is expected because it is not the same part. I wrote functions for erasing, reading and writing the flash memory and tested it successfully using the launchpad.

Happy Christmas and Happy New Year wishes from Attiny13 – [Link]

How to make a simple wav player by using Arduino

Arduino-Simple-WAV-Player

Integrated with the homemade low-pass filter, this Arduino-based simple WAV player is to send out PWM signal generated by UNO,

then through the low-pass filter and make the PCM data stored in the flash of UNO into sounds. Basically, the player cannot be regarded

as a pure WAV playback, because by extracting the data from the WAV file and storing it in an array format in UNO, this tutorial is for reference.

You can make SD card based WAV player by referring to this idea.

How to make a simple wav player by using Arduino – [Link]

FPGA based MP3/WAV Player

ultra-embedded.com writes:

The aim of this project was to build an MP3/WAV player using just a FPGA, some RAM & a stereo DAC. The project consists of a custom 32-bit soft core processor running at just under 60MHz which decodes the MP3 algorithm in software with no hardware acceleration apart from a single cycle Xilinx multiplier unit.

FPGA based MP3/WAV Player – [Link]

Stereo MMC WAV player using ATMEGA32

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Vinod.S @ blog.vinu.co.in writes:

This is my first AVR based hobby project and the most successful one compared to my all previous stuff. I am 100% satisfied with this work.. Few months ago, I tried to make a wav player using a PIC16F877A. It worked anyway, but the audio quality was not so good for higher sampling rate because that chip doens’t have enough ram and thus I couldn’t implement a good data buffer. But when I bought an atmega32 microcontroller, the first thing came to my mind is to make a good wav player…Now, I have completed my work and the audio quality is really amazing…

NOW I can say that, my wav player IS ABLE TO PLAY 8 BIT MONO/STEREO with maximum bitrate of 1300kbps for mono and 1600kbps for stereo … ie it can play an 8 bit mono wav of sampling frequency upto 160KHz and stereo upto 96KHz without any noise or trouble!!!!! (at OSC 16.450MHz).

Stereo MMC WAV player using ATMEGA32 – [Link]

Play WAV files using ATMEGA32

Vinod.S writes:

This is my first AVR based hobby project and the most successful one compared to my all previous stuff. I am 100% satisfied with this work.. Few months ago, I tried to make a wav player using a PIC16F877A. It worked anyway, but the audio quality was not so good for higher sampling rate because that chip doens’t have enough ram and thus I couldn’t implement a good data buffer. But when I bought an atmega32 microcontroller, the first thing came to my mind is to make a good wav player…Now, I have completed my work and the audio quality is really amazing…

Play WAV files using ATMEGA32 – [Link]

Radio Arduino – uses Adafruit WaveShield!

Radio Arduino – uses Adafruit WaveShield!… [via]

What it is really doing is playing 24 music tracks that I preloaded onto an SD card in WAV format. There are also 10 tuning noises tracks that get played when the tuner is turned.

Because this is the first time I did this I had a lot of help. Firstly the chaps and chapesses at Hackspace have been very supportive in teaching me how to use and Arduino, particularly Adrian McEwan and Oomlout. Also Jingle Joe who supervised my soldering of the Wave Shield, Brox who helped me decipher the ancient mysteries of FAT16 and Esme who helped dismantle the original radio… PS I did do some of it myself!

Radio Arduino – uses Adafruit WaveShield! – [Link]

 

PIC18F SD WAV Audio Player

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This project is a Wav Audio Player based on PIC18F2550, it is able to play RIFF WAVE files and display some file information on the N6610 LCD. It plays the audio file via the PIC’s PWM with a simple RC filter on the output pin. The data is read by a SD card. Check it out.

PIC18F SD WAV Audio Player – [Link]