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ASoC Digital Audio Interface (DAI) — The Linux Kernel ...
https://www.kernel.org/doc/html/v4.14/sound/soc/dai.html#:~:text=PCM%20is%20another%204%20wire%20interface%2C%20very%20similar,rate%20whilst%20sync%20runs%20at%20the%20sample%20rate.
What is PCM Audio? [Format Difference. Expert Explaned]
https://samplerateconverter.com/educational/pcm-audio
To use PCM/LPCM for high-resolution audio (especially, multichannel one), HDMI interface is recommended. The point is computer can't store continuous things like analog audio signal. So, the signal should be represented as discrete values (samples), that may be stored into computer memory.
PCM Audio Design Guide - Paoli
https://www.paoli.cz/out/media/HUAWEI%20LGA%20Module%20PCM%20Audio%20Design%20Guide-V100R001_04(1).pdf
transmit and receive digital audio data, and uses the PCM interface as part of the audio front end; therefore an external codec is easily allowed to be used instead of the internal codec. For example, through the PCM you could connect Huawei LGA module to a Bluetooth device. Huawei LGA module has one PCM port.
Audio Codec with PCM and TDM Interfaces - EEWeb
https://www.eeweb.com/audio-codec-with-pcm-and-tdm-interfaces/
The CS4244 is a 4-in/4-out audio codec with PCM and TDM interfaces featuring advanced multi-bit delta sigma modulator and differential or single-ended outputs. It offers A-weighted dynamic range and support sample rates up to 96 kHz. The CS4244 provides four multi-bit analog-to-digital and four multi-bit digital-to-analog Δ-Σ converters and ...
PCM Codec datasheet
https://www.ti.com/lit/ds/symlink/tlv320aic1110.pdf
The PCM codec has many programming features that are controlled using a 2-wire standard serial I 2C interface. This allows the device to interface with many digital ICs such as a DSP or a microprocessor. The device has seven registers: power control, mode control, transmit PGA, receive PGA, high DTMF, low DTMF, and auxiliary mode control.
audio - I2S and PCM format - Stack Overflow
https://stackoverflow.com/questions/32367619/i2s-and-pcm-format
PCM is a digital representation of an audio signal. It can be stored in memory or written on paper or whatever. An example of a 16-bit PCM audio sample might be something like 0x0152. I2S is a electrical serial interface used to transmit PCM data from one device to another. The interface has a line used to delineate frames called the frame ...
I2S vs PCM interface - NXP Community
https://community.nxp.com/t5/i-MX-Processors/I2S-vs-PCM-interface/td-p/1020643
Signals seem different (although similar). The PCM interface doesn't differentiate between L and R channel and the sync signal only provides synchronisation between successive samples. GSM modem audio interface signals (PCM interface) Question: is it possible to configure the SAI in the iMX8 MQ processor to communicate with this standard?
MEMS microphone Interfaces – Listen, Inc.
https://www.listeninc.com/products/audio-testing-hardware/electronic-interfaces/mems-microphone-interfaces/
The PQC-3048 MEMS digital microphone interface is designed for high volume production line testing of MEMS microphones. It converts, in the digital domain, the 1-bit audio data returned by the device under test to 24 bit PCM audio at 48kHz sample rate and supplies the required clock signal and DC power for testing.
Understanding PDM Digital Audio - users.ece.utexas.edu
https://users.ece.utexas.edu/~bevans/courses/rtdsp/lectures/10_Data_Conversion/AP_Understanding_PDM_Digital_Audio.pdf
sample rate of audio CDs by a large factor, and reduced the wordlength from 16 bits to 1 in a reasonable way, that would serve as the basis of a PDM system. Most current digital audio systems use multi-bit PCM (pulse code modulation) to represent the signal. PCM has the advantage of being easy to manipulate.
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