Questions tagged [audio-codec]
The audio-codec tag has no usage guidance.
62
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Need help understanding how this decoder IC & differential amplifier circuit works
I need help to better understand differential amplifiers, when interfaced with an decoder IC. For the circuit below, which is from the reference design here:
It shows a mono differential amplifier (...
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Is there an efficient way for synchronising audio events real-time with LEDs using an MCU?
I'm working on a project in which LED lights synchronise with audio events. I'm not referring to reactive LED projects that read the ADC from audio amplitude or spectrum, but about having some ...
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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 ...
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Powering audio codec below recommended spec
I'm working on an audio project where I intend to use the PCM3060 audio codec (datasheet here). The datasheet says that the chip takes two power inputs :
Vcc (Analog supply voltage) @ nominal 5V (...
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I2S TDM channels maximum bandwidth
Does I2S support sending multiple mic (around 20) channel data? If no, what is the limiting factor in supporting multiple mics?
Also, is there any way to send multiple channel data from different ...
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I2S Clock in Audio Codec on dev board, how is this working?
I'm using a dev board, the keil mcb4300. In the schematic, the audio codec UDA1380HN has the BCKI going to the SYSCLOCK.
According to the codec data sheet:
BCKI: bit clock input
SYSCLOCK: system ...
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what's wrong with my codec's op amp output?
There's some thing wrong with my audio codec. Unlike the modern codec, its input gain is configured externally with op amp's resistor. However with unity gain, I see strange wave form on the input ...
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MICBias Ground in audio codec
MICBias is the voltage required for microphone to power and record signal at full levels.
What will happen if we ground MICBias, is it means we are disabling microphone.
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Why is the latency so high for Bluetooth audio?
Referring to this, the lowest latencies achieved in Bluetooth audio streaming are around 30-40ms. Given the fact that Bluetooth physical layer data rate is of around 2-3 Mbps and today's Bluetooth ...
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377
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Is the sound of an aux-connector DAC or CODEC?
I am planning to take the audio aux signal of a raspberry pi and amplify it with a TPA2012D2 by Texas Instruments. In the datasheet there is a typical application circuit, which would match my needs (...
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Using AC97 codec with Arduino or STM32
I'm an electronics student, advanced in some matters, beginner in others. I'm researching about building a board for digital audio processing. The idea is to get it work on the cheapest way. For that ...
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Ultra low power audio recorder
I'm trying to design an ultra low power audio recorder, in order to monitor ground noise in rural areas. The circuit I'm working on is based on a microcontroller (STM32L100RC) and an audio codec (...
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229
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Please help me identify this noise on my ADC
I have a CS4270 codec hooked up to a Raspberry Pi more or less according to the "recommended layout" in the datasheet (P7), shown below. This device sinks power from three different places (VA = power ...
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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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Biasing analog MEMS microphone [closed]
I am using a analog type MEMS microphone.(SMA120).
Interface chip PCM2912 provi
SMA100 data sheet
PCM2912a data sheet
PCM2912 product page not for new designs
Could you kindly suggest me a proper ...
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