microphone

PULPino – An open source microcontroller system based on RISC V

PULPino – An open-source microcontroller system based on RISC-V

Finally, PULP, goes multicore!  We are happy to launch our flagship RISC-V-based parallel-ultra low power open source system. Simply put, OPENPULP,  today’s new kid in town, is the most advanced open-source release we have done so far, and a quantum leap ahead in terms of performance, efficiency and completeness. OPENPULP is an MCU on steroids:

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Measuring sound in dB with Microphone and Arduino

Measure Sound/Noise Level in dB with Microphone and Arduino

Noise pollution has really started to gain importance due to high population density. A normal human ear could hear sound levels from 0dB to 140dB in which sound levels from 120dB to 140dB are considered to be noise. Loudness or sound levels are commonly measured in decibel(dB), we have some instruments which could measure the

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KaraOkay Microphone Amplifier

Post Project 61: KaraOkay Microphone Amplifier

Here is an all-analog, all-through-hole, cheap & cheerful preamplifier for that perennial problem of getting the microphone amplification just right, which is a challenge not only with the faithful reproduction of lead vocals during concerts and recordings, but also with campfire and karaoke-ish performances specially when the beer takes hold. The two operational amplifiers of

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Arduino Breathalyzer Microphone

Breathalyzer Microphone using an Arduino

The breathalyzer microphone is a system for the inconscpicuous collection of blood-alcohol content level data sets. In other words, you can measure a person’s sobriety with a device, that for all intents and purposes, looks no different than a standard microphone. This tool adds new dimensions of truthiness to any standard interview. It can also

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Wolfson adds 600Mips DSP to phone audio chip

Wolfson adds 600Mips DSP to phone audio chip

Edinburgh, UK, 23 May 2012 – Wolfson Microelectronics plc has today announced the introduction of the WM5110, the industry’s first quad core High Definition (HD) Audio Processor System-on-a-Chip (SoC). This new highly-integrated, low power HD Audio Processor with advanced DSP feature set is designed to deliver revolutionary HD Audio performance for smartphones, tablet computers and portable

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