Audio signal processing with a PIC? - Microchip Technology
Most difficult thing to do will be, IMO, building such a small device as a standard hear-impaired "amplifon ", box etc. Other people more expert about FFT on dsPICs will help.
DSPIC Real Time Audio? Possible? - forum.microchip.com
If you use a dspic with DMA you can even let the pic sample at the desired rate in the background and continue doing the signal processing in the foreground, getting an interrupt when the input buffer is full.
help: initial understanding of interfacing dsPIC to audio?
For the purpose of interfacing to audio inputs and outputs, the dsPIC has a Data Converter Interface peripheral on-chip. This peripheral can be connected to stereo audio codecs, standalone A/D or D/A converters.
Audio and Speech - Microchip Technology
Audio provides a means of communication, improves usability, and delivers entertainment. It can transform the mood of an environment, help us escape a noisy commute, assist us in machine interface and improve the quality of life for the visually impaired. Adding audio to your application enhances its ability to meet the needs of your customers.
16-bit stereo audio DAC on dsPIC33FJ128GP802 - ToughDev
Feb 19, 2021 · According to the datasheet, the DAC module of this PIC supports 16-bit resolution (with 14-bit accuracy) with an input frequency up to 45kHz. The DAC can be managed via the DACXXXX registers, described in section 22.0 of the datasheet.
approach offers us a reasonably easy way to gain additional processing power for our dsPIC SDR projects. Using a single dsPIC, each sample will be ready to turn in to audio after each processing cycle.
What can the dsPIC do which the humble PIC microcontroller …
You can do signal processing without using a dedicated DSP. Current DSPs become useful when processing multiple signals or operating at very high sample rates such as for software defined radio for example. Increasingly however you might use an FPGA for that.
comp.dsp | dsPIC audio processor - DSPRelated.com
May 4, 2005 · I'm working on a simple audio processing system using the dsPIC30F4013. It's mainly intended for amateur radio use, and I've formed...
Performs alpha-code processing of messages from external controller (e.g., SPI, I2C). Calls alphaIntervalProcessing-Task(). Implements “at boot” and “at time” processing of alpha code. The idle task is a standard part of, and managed by, DSP/BIOS. It provides various system services, such as MIPS measurement, as well as user-defined services.
dsPIC DSC Automatic Gain Control Library - Microchip Technology
The dsPIC® DSC Automatic Gain Control Library automatically adjusts the amplitude of a speech signal to match a set level. This is useful in speech applications where the distance between the speech source and the microphone is not fixed.