Questions tagged [music]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1 vote
0 answers
60 views

What kind of solenoid could be used to engage piano keys like in this example?

I was inspired by the video of Mark Rober and the self-playing Edelweiss piano and would like to build and retro fit a similar contraption on my piano. In the video, a type of solenoid is shown that: ...
user avatar
  • 111
0 votes
0 answers
24 views

BLE UART module for music?

I'm pretty sure the answer to this is no but wanted to get some thoughts (particularly the glaringly obvious info I'm missing). My intent was to take a wired over-ear headphone set and make it ...
user avatar
1 vote
1 answer
104 views

Listening to electromagnetic fields

In Nicolas Collins' book Handmade Electronic Music there is section on picking up electromagnetic fields and listen to them simply by connecting the wires to a RadioShack Mini Audio Amplifier. It says:...
user avatar
  • 133
3 votes
1 answer
160 views

How can this 74 series Inverter circuit be analyzed?

I'm trying to analyze the keymech scanning / sampling circuit in the WASP synthesizer So far I understand that the keymech is sampled one key at a time by the 74 series logic driven by the dual ...
user avatar
  • 940
0 votes
1 answer
67 views

Proper audio amplifier for a 12W-RMS / 60W maximum speaker

I have two different amplifiers TDA2030A ~ 18W amplifier and a TPA3118 ~ 60W and a medium size speaker labeled 12 watt RMS - 60 watt maximum. I don't know how the RMS wattage is so far different from ...
user avatar
  • 117
-1 votes
1 answer
75 views

Music reactive LED brightness

I want to build a vactrol. That means I have to build a device that converts the incoming audio signal into brightness levels. I found this. I tried building this: This does not seem to work. The LED ...
user avatar
  • 101
0 votes
1 answer
55 views

Mimicking the output of a piezo sensor with a membrane potentiometer

High level I'm trying to use an electronic drum pedal as an electronic drum trigger. My specific e-drum unit has only one pedal input, so I need to repurpose a drum trigger input in order to use more ...
user avatar
1 vote
0 answers
28 views

Connected my audio input to two music systems by splitting the input, but the one with subwoofer produces continuous 100Hz hum

I have 10 year old Creative 2.1 audio system that has fairly capable subwoofer, and combined its input with a TPA3110 2x15W stereo amplifier module (for better treble). When both systems are powered ...
user avatar
  • 11
0 votes
0 answers
35 views

12V Mobile Power Setup -

I am looking for feedback and experienced insight as I'm new to this world. I have a 12V 18Ah AGM battery connected to a 300W 110V pure sine wave inverter with the intention of running a 140W speaker ...
user avatar
0 votes
0 answers
62 views

Can I replace a music toy speaker with a 6.3mm jack?

This toy keytar gas an 8 ohm speaker and adjustable output volume. If I simply replaced the speaker with a 6.3mm jack to use it with guitar pedals and speakers that can handle the line level, would I ...
user avatar
  • 765
0 votes
0 answers
43 views

My Firebird electric guitar's bridge pickup is operating at a very low volume. What could be causing this and how can I fix it?

I have a Firebird electric guitar with two mini humbucker pickups. Both pickups have been good since I got it, but suddenly the bridge pickup stopped working. The neck pickup is fully operational, but ...
user avatar
2 votes
1 answer
380 views

What is a typical duty cycle for Bluetooth headsets playing music?

When conducting SAR testing for Bluetooth headsets/earbuds, multiple tests are typically carried out using different types of modulation, all at a “worst case” i.e. duty cycle of 100% What is a ...
user avatar
1 vote
1 answer
119 views

Is it relatively simple to design an ADC to ADAT interface with only a Toslink port?

For this project (I'm an experienced audio engineer but a relative beginner in electrical engineering) I really want to integrate a simple ADC to ADAT circuit in a patchbay I'm building so that I have ...
user avatar
0 votes
1 answer
91 views

How do digital pianos work? [closed]

I know somehow it combines different harmonics to synthesize notes, but I don't exactly know how this is implemented.
user avatar
0 votes
0 answers
280 views

Using an Audio Signal for a Control Voltage for an Analog Synthesizer

I have a Moog Sub 37 Analog Synthesizer and a Korg SV-1 keyboard. Can I take the audio out of either the line outs or headphone out of the Korg and plug it into the volume or filter Control Voltage (...
user avatar
  • 105
0 votes
1 answer
209 views

How can I turn a midi keyboard to a stand-alone piano using Arduino or any other way? [closed]

I have a midi keyboard, but I find it frustrating to start PC, DAW system every time I want to play. Is there a way to use Arduino to create an on the go stand alone piano. (It should work like a ...
user avatar
  • 193
2 votes
1 answer
152 views

Does cutting the covering of subwoofer wire affect the sound quality?

I have Sony 5.1 channel sound system. There is some cut on covering of subwoofer wire. The copper wire is not affected at all. So, I am curious to know whether it will leak the passage of sound and ...
user avatar
  • 139
0 votes
0 answers
84 views

Prevent click/pop from transient when bluetooth receiver disconnects?

I have a Logitech bluetooth receiver connected to my hifi to allow kids etc to play music from iPhones/ipads. However, it seems that the receiver itself has a sleep mode when no signal is being sent,...
user avatar
  • 101
0 votes
1 answer
332 views

Does anyone know the YM2410 pinout (from the PSS-130 and PSS-30 line of Yamaha keyboards)?

I was recently making modifications to a PSS-130 Keyboard, and before I knew it, the keyboard would cease to make noise. I have narrowed the issue down to the main chip on the PSS-130, the Yamaha ...
user avatar
0 votes
4 answers
253 views

How did old games from 8-bit era game consoles store music? [closed]

Some time ago I found that the audio of a game called Ninja Gaiden 1 (NES) is around 1 hour. This is excluding the sound effects like jump and hit e.t.c. Then I found that the entire game size is ...
user avatar
  • 9,571
2 votes
0 answers
74 views

Can i replace a De-9 port with something else? [closed]

I was given an old piece of DJ equipment from the late 90s and unfortunately, the only way to connect it to a pc, which is what its meant for, is through a De-9 port/cable. And my pc doesn't support ...
user avatar
0 votes
3 answers
263 views

Is it possible to play music with a PIC16F628A

Is it possible to generate and send PCM audio from a PIC16 (or an arduino/atmel)? It does have an analog port, so it should work right? And if it does, is the PIC fast enough to generate the ...
user avatar
0 votes
1 answer
467 views

AUX input or microcontroller in a musical tesla coil?

Alright so I am making a musical tesla coil. I have seen some online tutorials and what I noticed is that some people are giving the audio input using a microcontroller and programming it to produce ...
user avatar
  • 1
52 votes
5 answers
7k views

Why does music synthesizer built from chain of astable multivibrator circuits get "out-of-tune" after a few hours?

I built a prototype keyboard/sound synthesizer using a chain of 13 astable multivibrator circuits whose outputs are connected to an audio amplifier chip (LM386) and speaker, all powered off a 9V DC ...
user avatar
0 votes
2 answers
405 views

Swapping two 500kohm pots with one MCP42010 10k ohm digital pot

What additional elements do I need in my circuit to compensate for changing a pair of manual 500k ohm pots to a pair of digital 10 ohms? I'm a beginner implementing an Atari Punk Console on Raspberry ...
user avatar
  • 103
0 votes
3 answers
74 views

Portable electronic musical instrument: energy from pressing keys, no batteries: feasible? [closed]

on one hand electronic musical instruments are very nice (lot of features: change tonality, change timbre, small number of mechanically breakable parts ), on the other hand they need external power ...
user avatar
  • 103
4 votes
2 answers
328 views

DIY guitar effect - delay

I'm trying to build a guitar delay effect based on this schematic: (https://i2.wp.com/cdn.makezine.com/uploads/2009/09/echobenderrev02.jpg) I designed and oredered a pcb : https://easyeda.com/...
user avatar
0 votes
2 answers
234 views

Is this speaker crossover design correct?

This is the schematic for 2-way crossover, the speakers I want to use are: Woofer: https://thomann.de/pl/harley_benton_15tb065_b4.htm?o=2&search=1537173360 Tweeter: https://thomann.de/pl/...
user avatar
0 votes
1 answer
97 views

Component that plays single .mid music file? [closed]

Is there a component, (that is not Raspberry Pi or other mini computer it would be an overkill), that I can use to play a MIDI music file on loop? Even by uploading it on it or program it to the tune. ...
user avatar
0 votes
5 answers
379 views

A sensor which can measure the vibration of a material

I am planning on making a musical instrument where I require the conversion of vibration of a material to voltage. The idea is to make a percussion instrument where I hit a plate made of a certain ...
user avatar
0 votes
2 answers
167 views

How do I create a subtractive or dffferential two channel audio mixer?

I have a desktop mixer made by Behringer (Xenyx X2222USB although I am not using its USB capabilities) which has a line level output that feeds 2 channels of a Behringer USB audio interface (U-Phoria ...
user avatar
  • 101
0 votes
1 answer
488 views

Can an all-tube guitar amp be damaged by flyback voltages?

Inspired by this question: https://music.stackexchange.com/questions/66443/how-to-rewire-my-cabinet-properly And this quote from a comment on the question: I've read that with tube amps, this isn'...
user avatar
1 vote
3 answers
100 views

Battery size for street musician gear [closed]

I am a musician and we are taking our show to the streets, away from wall sockets. For this, we will be using a 300W inverter that I have lying around, with a car battery of some size {?} We have: ...
user avatar
0 votes
2 answers
258 views

How to prototype analog audio processing?

How to prototype analog audio processing? Should I merely trial with analog electronics or should I simulate the circuits in software first? Particularly, I'm interested in discovering new forms of ...
user avatar
  • 109
31 votes
5 answers
7k views

Does cassette tape change its velocity while playing?

Looking at the old cassette tape, From the POV of the head, let's say that it reads at speed \$v\$ (the magnetic medium scrolls at speed \$v\$). But looking at the right wheel, which is the one that'...
user avatar
0 votes
2 answers
449 views

Need help with TI SN76489 Sound Chip

I'm working on a project which uses the Texas Instruments SN76489 integrated circuit, which was used to make sound in arcade games and Sega games from the 80's and 90's, I believe. I made a similar ...
user avatar
0 votes
1 answer
142 views

My transitor amplifier is deamplifying

I have built the following circuit intended to be an amplifier. When I hook the input up to my phone via a guitar cable and the output to a 4 ohm speaker it produces a lower volume than plugging the ...
user avatar
0 votes
1 answer
93 views

Suppress Certain Overtones In A Musical Instrument's Sound Wave

So, just like the title suggests, my college professor and I are trying to suppress certain overtones of an instrument's sound. I have a microphone hooked up to an oscilloscope, and I'm using the ...
user avatar
  • 17
-1 votes
2 answers
418 views

How to connect pc speaker to 2 channel dvd player [closed]

I am having Creative Inspire M2600 pc speaker. I need to connect it to a dvd player which having output of 40w-40w and not having a 3.5 mm out. Can i connect the dvd output to a 3.5 mm female jack and ...
user avatar
  • 119
6 votes
5 answers
2k views

How do I mix two audio tones from two 555s to make a polyphonic chord?

I have set up two 555 chips in astable mode to produce a tone each through a speaker. However, I am not sure how to mix them together to produce a musical chord. If I directly combine the two ...
user avatar
0 votes
1 answer
359 views

Best circuit to play music in car, using ISO 10487

instead of using a radio, I want to install a Raspberry Pi 3 with my own features in the 2Din Slot, so I have to make my own circuit to play audio. I tried with the following modules based in LM386 ...
user avatar
  • 123
1 vote
2 answers
177 views

ADC for many piezos at once

I'm building an electronic musical instrument, using piezoelectric contact microphones as inputs. I want ~80 buttons, each with a piezo connected to an ADC. The idea is that you hit the piezo, then ...
user avatar
3 votes
5 answers
2k views

When should an audio pre-amp use a differential input

As a guitarist, very familiar with the various types of noise that can wreak havoc with electric guitars, I've been mystified at how infrequently guitar amplifier inputs have employed differential ...
user avatar
  • 3,115
4 votes
2 answers
744 views

How to power a button's LED within a guitar?

I'm working on a guitar, and the plan is to use three latching push buttons so that each pickup can be turned on and off individually. I'm fairly confident that the following diagram should work for ...
user avatar
0 votes
2 answers
2k views

How does vacuum tube heating (heater voltage) affect tube performance/sound?

I have replaced a 12AX7 tube with ECC85 in my guitar amp. Seems to work great and sound great. The part that is questioning me is whether the sound is being at its best because it takes a good 20-30 ...
user avatar
  • 355
0 votes
3 answers
2k views

Why does this circuit produce a static noise?

I was just designing this Common emitter transistor amplifier this morning. simulate this circuit – Schematic created using CircuitLab I have removed the input in the circuit intentionally. ...
user avatar
  • 398
0 votes
2 answers
3k views

Arduino Audio Input from AUX cable

I want to feed Audio input (music played in my phone or laptop) to Arduino using an AUX cable(3.5 mm). I know that we need to offset and amplify the signals as the Arduino takes input from 0 to 5v ...
user avatar
0 votes
1 answer
139 views

Audio Circuit to Remove Vibrato while Preserving Word Detail

In music, vibrato describes the warble effect often added in by singers as they sing. I was trying to come up with a circuit to remove it from an audio signal, almost like a "vocal stabilizer" ...
user avatar
-5 votes
2 answers
5k views

What resistors and capacitors do on a audio circuit? [closed]

I'm a newbie, hobbyist, and i build guitar stompboxes fx using existing schematics. After building some of them i noticed they all use resistors, capacitors, and basic 3 pin transistors... my ...
user avatar
  • 311
-5 votes
3 answers
4k views

9-pin mini-DIN - zero resistance between some pins [closed]

There's a volume knob connected to a speaker system with 9-pin mini-DIN. The volume knob contains potentiometer to control volume and is also in charge of turning the system on and off (by turning the ...
user avatar