All Questions
Tagged with audio-codec digital-audio
10
questions
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votes
1
answer
130
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How long is the S/PDIF preamble?
I have a simple S/PDIF protocol question that I can't find the answer to anywhere. I'm trying to understand the protocol, and everywhere I look says the same thing: The length of a preamble pattern is ...
- 620
0
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259
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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 ...
- 51
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57
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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
0
votes
2
answers
545
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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 ...
- 621
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1
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74
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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 ...
- 274
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32
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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 ...
- 551
2
votes
0
answers
392
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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 ...
- 21
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35
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Dependence of the PWM amplitude of the amplifier on the battery voltage
I'm going to use speaker connected to internal Class D amplifier in WM8998 in my PCB.
Power source of my PCB is Li-Pol battery with 3.2-4.1V range or external 4V adapter.
Audio codec speaker power ...
1
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0
answers
343
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How to interface a microphone to an I2S input to use HFP
For my group's SDP/Capstone we are doing a bluetooth headset of sorts. We are using a CYW20706 SoC from Cypress. Specifically, we are using a this CYBT-343026-01 Cypress module whch includes that ...
- 11
0
votes
1
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Translating/reverse engineering firmware commands
I'm trying to build my own Hi-Fi system. So, I recently ordered this Japanese DSP that's able to process Dolby audio. I was all excited until the part had arrived and I found something in the ...
- 159