Questions tagged [audio-codec]
The audio-codec tag has no usage guidance.
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Can I connect multiple different devices via a single I2S interface?
I am using a microcontroller with only one I2S interface. I am using MAX98357A which has 1 sound chip. There is 1 microphone, SPH0645. Can I connect these ICs to the same line provided that I cannot ...
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I need clarification for an audio power amplifier circuit component
Below is the block diagram of my first design using an audio power amplifier.
The input to the audio power amplifier comes from an SC200 module by Quectel.
The output of the PA is connected to a ...
- 2,593
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Are many capacitors in a row in parallel really needed for an audio circuit?
I get that smaller capacitors have lower parasitic inductance and resistance compared to larger capacitors. And lower parasitic impedance allows the smaller capacitors to be more effective at ...
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Understanding how audio is encoded on mysterious device to reprogram it
So I found a chanting lotus flower in the woods and I'm trying to figure out how to reprogram the audio on it... It has 4.5 hours of audio(!) stored on a 16MB flashrom, and is driven by a chip called ...
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Trying to understand description of aptX Lossless audio streaming codec bitrate
I was looking at this article about the aptX Lossless audio codec.
The article claims that this iteration of the aptX codec can stream CD quality audio losslessly. At the beginning of the article, it ...
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What ESP32 pins to connect to the NAU8810 audio codec?
What ESP32 pins to connect to an NAU8810 audio codec? Or rather the other way around. I need an RX pin. Would this be tied to DACIN?
Pins I'm unsure about:
MOUT (Mono Output)
ADCOUT (Digital Audio ...
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Digital radio to Bluetooth bridge
I'm studying the possibility of building a bridge from DAB+ (digital radio) towards Bluetooth. The reason is that all the good quality DAB+ tuners are really expensive and the cheap ones usually have ...
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How to measure channel capacity performance for enhanced speech samples in GSM speech coders?
I've been conducting some research lately on Speech Enhancement of the ITU-T Recommended G.729 Voice Activity Detection (VAD) algorithm for GSM Speech coders.
It has been suggested in the literature ...
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Connection of microphones to Stereo Audio Codec
I want to interface two electret microphones with a stereo audio codec. One mic will capture audio from one side of a box and the other one from the opposite side. I want to use TLV320AIC3254 from ...
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PCM5242 DAC: DSP Program and DSP Frequency for high sampling rates
I want to use a PCM5242 DAC (datasheet) in a project
The DAC has a built in DSP core that I don't want to use for anything custom.
The DSP can be programmed with custom code, or predefined codes in ...
- 1,725
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Is an AK4588VQ decoder able to pass PCM digital audio with its ADC digital interface?
I want to interface an AK4588VQ with only at maximum 5 wires. Is it possible? My system uses an STM32F746NG and requires two digital microphones (I2S) and one DAC. I've used this chip because I have ...
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Interfacing PCM3060 Audio Codec With STM32
I am using a STM32F4 MCU, currently prototyping on a Nucleo-F446RE. I have a PCM3060 audio CODEC to do the analog to digital conversion. I am attempting to use the I2S protocol in order to interface ...
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Calculating Passive Analog Output Filter for CS42448
I'm designing schematics with the audio codec CS42448. The datasheet suggests output filters and I chose to follow the passive filter recommendation. I'm not sure though how to follow the calculation ...
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CS8406 Audio Interface (I2S->I2C)
I'm attempting to interface a MEMS Microphone with an ESP32 through a CS8406.
I am aware that the ESP32 has a well-documented I2S hardware interface however for my project I cannot use it. (It's going ...
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Loopback Latency of an Audio CODEC?
I'm thinking way ahead about a possible future project which will contain, among many other things, a "DIY hearing aid" of sorts. Microphones feeding earbuds with some DSP in between, all ...
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