Questions tagged [i2s]

For questions regarding the I2S serial bus interface standard for connecting digital audio devices.

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22 views

I2S data stream format

While I'm working with RPi I2S and couple of DACs, I notice something which I like to verify in here. When I connect the scope to I2S interface I usually see waveforms similar to this: In here 1st ...
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0answers
18 views

I2S not working playing sounds with MAX98357 Pi 2 and Pi 3

I have followed the Adafruit tutorial and checked all the config files etc. but no sound output from the MAX98357A Breakout Board. Raspbrian version is stretch. Others appear to have the same problems....
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14 views

Error in configuration for I2S microphone

I follow these directions to set up the Raspberry Pi for an Adafruit I2S microphone. The line to compile the module fails with a missing script: $ make -C /lib/modules/$(uname -r )/build M=$(pwd) ...
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39 views

How to force compilation of kernel with rpi-source for I2S microphone

I followed these directions to configure the Raspberry Pi for the Adafruit I2S microphone. I skipped the step that installed git bc libncurses5-dev bison flex libssl-dev and got this error when ...
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0answers
30 views

Simple Sound Card with I2S - how do I switch frequencies?

I asked this a month ago, but didn't get an answer and so the thread was auto-deleted. It is becoming critical that this be solved, so I am reposting. I have the simple sound card working with a ...
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0answers
15 views

Send 24/96 pcm music from an rpi3b+ to a zero one

As my title says, I'd like to send audio from an rpi3b+ to another one. Preferably a zero one via a GPIO connection. My target is to have a dedicated device to only manage an USB DAC. Ideally an Rpi ...
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0answers
104 views

SPH0645LM4H Adafruit I2S MEMS Microphone Kernel Error

I'm trying to configure the i2s kernel following this website: https://learn.adafruit.com/adafruit-i2s-mems-microphone-breakout/raspberry-pi-wiring-and-test but when I run the following code rpi-...
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1answer
69 views

Need a board that have two I2S interfaces

I want to try to make a prototype of hardware audio DSP module, so I need both audio input and output. RPi 3B only has one, and the quality is poor, so I'd better to connect audio IO by myself. ...
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1answer
2k views

I2S Recording combined with I2S Playback

I have a Raspberry Pi Zero and I am using the Adafruit I2S MEMS Microphone together with the ADAFRUIT I2S 3W CLASS D AMPLIFIER BREAKOUT - MAX98357A. I did follow the two respective tutorials and I ...
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1answer
2k views

How do I increase the input volume of a microphone connected to pi .Its using the I2S interface

So i have managed to get input from a microphone using I2S interface following this link . https://learn.adafruit.com/adafruit-i2s-mems-microphone-breakout/raspberry-pi-wiring-and-test if i use the ...
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0answers
870 views

Both speaker and microphone via I2S

I got the exact same error as someone asked on the raspberry pi forums. But no solution was found yet. https://www.raspberrypi.org/forums/viewtopic.php?t=183617 I've connected max98357-i2s to the ...
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155 views

PocketSphinx , Adafruit i2s Mems Microphone and RPI

I am using Adafruit i2s Mems Microphone on Raspberry pi3 and PocketSphinx for the Speech to text conversion project. I am able to record audio on AUDACITY and Alsa. Previously i tried Google speech ...
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0answers
301 views

DAC Sound Card For Raspberry Pi 3b Won't Work

I just bought a raspberry pi 3b and the Kuman PIFI Digital DAC+ HIFI DAC Audio Sound Card Module I2S interface for Raspberry pi 3 2 Model B B+ SC08. When I plugged it in to my raspberry pi and hooked ...
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1answer
271 views

Kernel modules and Pi board versions

I have a Raspbian image (4.9.59-v7) into which I am loading a kernel module that I have built myself since it is not in the default image (for an ICS43432 MEMS I2S microphone). I have this working ...
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1answer
15k views

Confirming the I2S pins on Raspberry Pi 3 model B?

I'm having trouble confirming what are the pins used for I2S on Raspberry Pi 3 model B. First of all, I²S - Wikipedia tells me that in I2S, I'm looking for bit clock (BCLK), word/left-right clock (...
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1answer
1k views

How can I configure LibreELEC to work with a PIFI DAC+ v2.0 HiFi board?

The PIFI DAC+ board is mounted on a RPi 3, but when trying to configure the audio output device in LibreELEC, I cannot see an option to select the I2S DAC board.
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2answers
689 views

Full duplex audio over i2s (Adafruit MEMS + DAC)

I have setup a pi-zero with digital mems mics from Adafruit, and also the digital DAC. I can use arecord to record stereo audio, and then aplay to playback the audio over the DAC. Interestingly, the ...
3
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4answers
12k views

How to make PCM5102 DAC work on Raspberry Pi ZeroW?

I purchased a PCM5102 for my PiZeroW, but having problems finding complete driver software information voltage information wiring information. I chose this particular unit because they seemed very ...
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0answers
683 views

CODEC I2S: Using SGTL5000 in a custom board

I am using this board and this works: https://fe-pi.com/products/fe-pi-audio-z-v2 Now, I wanted to integrate an SGTL5000 (the above board's CODEC) in a custom board. I designed it and I already have ...
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0answers
402 views

Recording audio using i2s mic results to pure noise when interfaced with Raspberry PI 3 (both I2S mic and I2S speaker)

I followed Adafruit's guide for setting up the I2S mic with raspberry pi 3 loaded with precompiled image of Raspbian Jessie for the 3.5in PiTFT. Also, I'm using another I2S device which is the ...
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4answers
4k views

I2S DAC device support (kernel drivers?) and noise (“pop”, “crackle”) on playback

I am trying a Adafruit I2S 3W Stereo Speaker Bonnet for Raspberry Pi - Mini Kit, which is built around two MAX98357 (datasheet: adafruit, maxim), on a Raspberry Pi Zero W with Raspbian Stretch (...
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0answers
427 views

Raspberry pi voice encryption over GSM

I'm not expert in RPI, so I need help to make a voice encryption model for calls over GSM. I have lot of questions. So I want to use raspberry pi 3 and Sim900l for GSM. I will need a microphone for ...
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1answer
375 views

I2S Connections - MEMS Digital Microphone, CODEC, and Raspberry Pi Zero W

I have a MEMS Digital Microphone with PDM output. I am planning to use this: http://www.st.com/content/ccc/resource/technical/document/datasheet/57/af/88/31/7b/59/4f/77/DM00111225.pdf/files/...
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0answers
148 views

Use SPI to clock sensor and stream data using DMA

I'm looking into a issue on a Pi with SPI port, to clock continuously and stream data to memory area using a DMA. The sensor I connected on SPI on a Raspberry Pi 3, should be clocked with more than ...
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1answer
2k views

Help reading audio data from I2S microphones

Using the Adafruit I2S MEMS microphone breakout board and the Raspberry Pi 2B, I am trying to read in stereo input using PyAudio and pass the data through a FFT to analyse. However I am not able to ...
4
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0answers
270 views

I2s DAC audio out but USB audio in

I was wondering if anyone could help me. I am trying to set up my Pi 3 to be an assistant (Google or Alexa, etc). I had it set up working fine with the USB mic and the 3.5mm audio out, but I wanted ...
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0answers
474 views

How to connect SSM2603 via I2C/I2S?

I'm trying to get the Audio Codec SSM2603 (as input device) to work with a RaspberryPI 3 running Raspbian. Im using a SSM2603-EVALZ. I compiled and installed the most recent kernel with SSM2603 ...
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1answer
784 views

How to route audio from a USB sound card to I2S on RPi?

So for a school project I need to be able to route audio from a USB sound card to I2S. More specifically, the I2S will be connected to an XMOS xCore-200 Multichannel Audio Platform. I need to write a ...
2
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1answer
6k views

How to output all audio on the I2S interface and audiojack by default?

I'm currently running Raspbian on a Raspberry Pi 3. I want to output all the audio that would normally go to the audio jack output also go to the I2S interface (on GPIO pins 12 BCK, 35 LRCK, 40 DOUT). ...
2
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0answers
534 views

How to Set Up Driver Support for I2S Audio Codec

I am building a I2S audio codec using an ADAU1781 chip, which will communicate with the Pi via the GPIO pins. In my research I have found that there is an ASoC driver built into the Raspberry Pi ...
3
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0answers
1k views

Which GPIO pins are used for I2S audio I/O

I am trying to set up the ADAU1781 as an audio codec for the Pi 3 B, communicating with the Pi via the GPIO pins. Which pins would I use for I2S audio input and output? I have been doing a lot of ...
2
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1answer
3k views

I2S microphones on Pi 2 and 3?

I'm trying to get a pair of I2S microphones working on a Pi2/Pi3. FWIW, it's a pair of http://www.invensense.com/wp-content/uploads/2015/02/ICS-43432_DS.pdf. Here is some relevant output: $ uname -a ...
3
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0answers
784 views

Using I2S microphone with Raspberry Pi [closed]

I have a microphone with I2S output and I am trying to record audio with it, using the Raspberry Pi (2 model B). I'm having trouble getting the microphone to work. Does anyone have working code for it?...