audio

Hi everyone, I won't bore you with background but I've been working on this for a long while and would love some feedback on it's efficacy. It's the first major circuit project I've ever undertaken, you guys seem nice but still I'd appreciate if you could keep that in mind. As stated in the...

I'm working on a circuit for audio output from a Teensy 4.1 using as PCM5100 I2S DAC and a TPA6111 amp. I'm wondering if the circuit, specifically the headphone out (circuitry around U23) looks viable. I want the headphone output to be able to drive both low and high impedance headphones...

So I made this post in 2017: output boost mod and thought I'd come full circle (almost) a decade later with the following proposition. Now many of us know not to fully trust in AI, so I hope i've come to the right place and ask some clever individuals if this would be a 'good' or 'bad' idea...

Hi. I'm designing an audio equalizer and I'd really appreciate if anyone could take a look at my schematic and give me any feedback they might have. Here are images of the schematic sheets. A pdf is also attached. Links to datasheets for some of the components just in case: DMP3028LSD...

Hi Everyone, I am VERY new to electronics and teaching myself how to put together basic PCBs so forgive me if this is a total flop. My goal with this project is to create a PCB that can act as passive or transparent volume control. I want to be able to plug in my record player to the input...

Hi, I’m pretty noobish when it comes to audio circuits so I wanted to verify this before I pull the trigger and purchase the parts. I am making a small mic and speaker set up that I can use to record and also play sounds through a custom handset. The entire circuit will be powered and run by...

Hi there, I recently got an old GoldStar GSM-6330 and wanted to add an internal Bluetooth-receiver to it, without sacrificing any of the existing functionality. I decided for some cheap Bluetooth receiver board. You can see on this image, how I wired everything. (I stole the +-12V from the...

I have created my own Class D amplifier based 2.1 Karaoke Music System using ready to connect modules according to the following diagram to create the music system. I have used probably three very common modules which many of you may already be familiar with. I am still linking sample Amazon...

Hello everyone! Long-time viewer, first-time poster here. I work for a pretty large school district that has been around for quite some time. The systems in place here are well out of date and with that comes lots of technical issues. As A/V Admin, it's my job to understand and resolve them...

Hi there everybody this is my first post here and I'm so happy to find this community (which feels more like the real internet that we used to know), I had worked on some Robotic projects when I was a kid, then work life took me to programming for the past 15 years, and now I've got some time...

Hello everyone, I'd like to build an audio speaker/amp but I don't know much about it and I'd like to know where to turn. The purpose of this speaker would be to be both portable and pluggable on sector, to be used in student gatherings with my school. My hope is that if it's plugged into the...

Hi there A bit of an electronics novice here, forgive the lack of knowledge. But I'm trying to record my voice to my laptop via a USB-powered audio interface (it has USB cable for both power and data). A low hum has appeared which gets worse if I touch my mic body, and almost goes away...

While observing the audio output of my smartphone on the oscilloscope, I noticed a signal being generated when I touch the touchscreen. This signal is around 500Hz and appears in groups of 3 peaks, with intensity proportional to the skin/touchscreen contact area: The output is from an AUX cable...

Hi All, Can anyone assist with helping me design a circuit to switch between 2 audio signals using a DG419? I’ve never designed a circuit before and am only attempting now as there isn’t any pre-made electric boards breaking out this chip into an easy to use plug and play form. The power...

Hi there! I have designed a pcb for a passive audio split but I'm wondering if this will work out or if it will give issues. Gerber file is included. I would solder an XLR connector to the pcb, and it'd split to two patch points right besides the connector going through over inner layer copper...

First time posting - Hope I'm in the right place of this fantastic website. I am trying to develop a system where the louder ambient noise is received from a microphone, the more 'extended' a gear rack will be for an art installation. I have experience working with digital audio and have...

Hello, I am building an amplifier for an electric guitar, and I am encountering an annoying issue when playing the higher frets of all 6 strings of the guitar (Stratocaster) with more force: when playing a string after fret ~19 with greater intensity, the sound distorts, as if it were an...

Hello everyone! My original intention was to sample analog audio via the analog pin of the Arduino Uno Microcontroller. For testing purposes I used my phone as the audio source and plugged in a 3.5mm AUX cable I extracted from some old phone headphones. Then I used the R speaker audio wire to...

Hi, I'm using a 12V DC /240V AC relay to power on my audio amplifier when the main Processor comes out of standby (it has a 12V trigger out that goes high). Amplifier is a Crown XLS 2502 XLS 2502 | Crown Audio - Professional Power Amplifiers Crown XLS2502 Stereo Amplifier Review | Audio...

Hello everyone, I’m new here. Sorry for my English, I’m from South America. I need help to solve a very specific audio system. The system needs to solve 3 issues for a duo of djs who wear helmets. The issue number 1 is they need to communicate between them and with an external guy. The issue...