Analog and audio

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Dear community member, The “Analog and audio” topic is no longer supported on the ST community. The legacy content is available only by the read-only basis. If you have any requests regarding "Analog and audio” topics, check the alternative support ...

Resolved! Questions on the 32F746G Disco for audio DSP: How audio codec data is interpreted, compared to a typical ADC embedded inside STM32 uC.

Hi,I am currently working on developping a guitar digital looping pedal. I following my last post, I have starting looking into using the 32F746G DISCOVERY for my app, as it includes enough RAM to store audio data and has some interesting audio featu...

Reducing noise on ADC input pin.

Hi guys, I am using an STM32F446RE nucleo board with an electret microphone(Waveshare Sound Sensor v2). Currently I am trying to sample audio, store it in a buffer and output through the DAC to an amplifier to a headphone jack. I am sampling the ADC ...

Best Low Power buffer op amp

I need to measure a signal with very low power, the signal can range anywhere between -1 and +10 Volts but i only need the 0 to 3volts for my ADC input(my battery is also 3V). is there an opamp that fits my requirements that is less than 50uA?

Does the non-inverting amplifier change the input voltage level?

I use an opamp to amplify my signal for the internal interrupt of my MCU, but after i this i also need to measure the input signal of the opamp(V+) with an ADC to measure weight. I need to know if there will be any significant changes made to the sig...

Resolved! good evening kindly ask I have this your broken diode , but I do not know recognize the code politely ask for help. Thank you

Diode ST ………..

Best practices to process and save ADC values into an SD CARD

Hello everyone,I'm trying to build a system where I could read an analog signal and save it into an SD CARD. Besides this, I need to process the signal to activate, or not, the ACC reader for a few seconds.To save the values, I decided to use two buf...

Dear sir, We are using LM324 SMD IC in one of our project. We absorbed marking code difference in TOP of the IC of previous and present IC's . For your reference see below. Please let me know the difference between them and explain marking code .

Please tell me the RthJA of TS27L2CD (SO-8). missing in spec

Please tell me the RthJA of TS27L2CD (SO-8). missing in specIt's very urgent so please reply quickly

Tell me why the Audio_GrEq Audio Graphical Equalizer may not work?

I'm trying to run Audio_GrEq Audio Graphical Equalizer on the stm32f407vet6 microcontroller. The source of the input sound is i2s2, the output sound is i2s3. The SGTL5000 codec is connected to i2s2 and is configured to operate at a frequency of 48 kH...

ADC select sampling rate

Hey guys, I am using a STM32 nucleo f446re board and I have a waveshare sound sensor v2 that I want to use. So basically just want to record audio and store it on an SD card. I want to sample audio at 44100 Hz using 8 bits, should I use a timer to ge...