piano | Desktop browser based on screen keyboard for touch screens | Keyboard library
kandi X-RAY | piano Summary
kandi X-RAY | piano Summary
Desktop browser based on screen keyboard for touch screens
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of piano
piano Key Features
piano Examples and Code Snippets
Lines of Code : 73License : Strong Copyleft (CC BY-SA 4.0)
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├── package.json
└── server/
├── server.js
└── routes/
├── drums.js
├── index.js
└── piano.js
const express = require('express');
const routes = require('./routes');
const app = Community Discussions
Trending Discussions on piano
QUESTION
I had the error: Uncaught TypeError: Cannot read property 'replace' of undefined, so I tried changing the code to have [i] make all the tone variables into arrays. It made the console aforementioned error disappear but it still doesn't change color. I tried adding console.log here but it seems something is going wrong in the if statement, I can't quite find out what though.
ANSWER
Answered 2021-Jun-07 at 07:34You are changing a in the for loop, that's why it's not changing all of the keys. You should change it outside of the for loop.
Here is a simpler example:
You can check if an element contains a certain class by classList.contains(className)
QUESTION
I have used the vimeo generated code to embed my video in a wix website (using their HTML component tool). I've tweaked the code so it autoplays when the page loads, and it is responsive on resizing the browser window (plus full width on the webpage). The code used is:
...ANSWER
Answered 2021-Jun-03 at 18:43Setting the CSS width for container and iframe must help. The code below shows the video in full-width and UNMUTE button works as expected.
QUESTION
I understand that in R it is best to avoid loops where possible. In that regard, I would like to perform the function of the code below but without using the nested loops.
The loops check whether the f'th element of the vector things_I_want_to_find is present in the i'th row of thing_to_be_searched. For example, when both i and f are 1, the code checks whether "vocals" is present in john's row. Because "vocals" is present in john's row, the name and instrument are added to vectors instrument and name. When both loops are complete these two vectors can be combined in a data.frame.
I know that there is the apply() family of functions in R but I don't know if they are able to be used in this case. Has anyone got any helpful hints or suggestions?
ANSWER
Answered 2021-May-21 at 13:00library(tidyverse)
thing_to_be_searched %>%
# Melt wide data to long
pivot_longer(-1) %>%
# Drop unwanted column
select(-name) %>%
# Filter wanted values only
filter( value %in% things_I_want_to_find) %>%
# Only keep unique rows
unique()
QUESTION
Im trying to write a complete music using midiutil library with python. So far, i have been able to add any instrument i've wanted via
MIDIFile.addProgramChange(track, channel, time, program)
and taking the program number from the table at https://www.midi.org/specifications-old/item/gm-level-1-sound-set
However, i cant add any drumset sounds the way i want. I know channel 10 is reserved for percussion, but whenever i write anything via
MyMIDI.addNote(track, 10, pitch, time + i, duration, volume)
the sound played by musescore is played in the piano voice or in the voice defined by the ProgramChange method. I know there is drumset sounds somewhere in my computer because i have been able to manually add drumset sounds in musescore. Am i doing something wrong?
...ANSWER
Answered 2021-May-16 at 18:07Humans begin counting at one, so you have channels 1 … 16.
Computers begin couting at zero, so they have channels 0 … 15.
The addNote() documentation says that the channel parameter is an integer from 0 to 15, so you must use 9 for the percussion channel.
QUESTION
Im trying to play 6 sound files (aiff), 5 mb each, simultaneously, or the closest they can be to the same miliseconds. But my code results in a mess : Some sounds are played indeed simultandeously, but some are not. You can hear 3 sounds being played at diferent times. So ... its like the 6 sounds were divided into 3 groups of 2 sounds, resulting into those 3 sounds at diferent time. This got be a clue...
The files are stored in the ram memory ( since i`m using a live lubuntu image loaded into ram), so its pretty fast, and i assume its no a lag problem. Even because when i loaded the sounds stored in a pendrive, the results sounded exactly the same. SO definetly not a problem here.
...ANSWER
Answered 2021-May-13 at 20:05Testing by loading your 6 sound files from:
http://theremin.music.uiowa.edu/MISpiano.html
I suspect that calling each play() that then calls it's own load() is creating your staggered effect as play2 cannot even think about starting to load it's sound until after play1 is already playing.
QUESTION
I have been on and off programming but recently I have been more active and done some basic projects. However I have been stuck on this particular problem for the past 3 weeks and still cannot seems to solve it. Looked through some codes and tried and only could improve some parts. The bottom is my full code.
The problems that I faced is the one that I have stated in my title, I need to display the mystery word as dashes and when I guess the unknown word, it was suppose to appear as the only word. One issue is when I guess the word correctly, it only display the single alphabet and reset immediately.
...ANSWER
Answered 2021-May-09 at 14:30Keep a list of all the player's guesses. When you start a new game, set all_guesses to [] and then, reading the letter from the console set:
QUESTION
I'm trying to implement Oboe library into my application, so I can perform low latency audio playing. I could perform panning, playback manipulation, sound scaling, etc. I've been asking few questions about this topic because I'm completely new to audio worlds.
Now I can perform basic things which internal Android audio class such as SoundPool provides. I can play multiple sounds simultaneously without noticeable delays.
But now I encountered another problem. So I made very simple application for example; There is button in screen and if user taps this screen, it plays simple piano sound. However fast user taps this button, it must be able to mix those same piano sounds just like what SoundPool does.
My codes can do this very well, until I taps button too much times, so there are many audio queues to be mixed.
...ANSWER
Answered 2021-May-06 at 10:52Does Oboe stop rendering audio if it takes too much time to render audio like situation above?
Yes. If you block onAudioReady for longer than the time represented by numFrames you will get an audio glitch. I bet if you ran systrace.py --time=5 -o trace.html -a your.app.packagename audio sched freq you'd see that you're spending too much time inside that method.
Did I reach limit of rendering audio, meaning that only limiting number of queues is the solution? or are there any ways to reach better performance?
Looks like it. The problem is you're trying to do too much work inside the audio callback. Things I'd try immediately:
- Different compiler optimisation: try
-O2,-O3and-Ofast - Profile the code inside the callback - identify where you're spending most time.
- It looks like you're making a lot of calls to
sinandcos. There may be faster versions of these functions.
I spoke about some of these debugging/optimisation techniques in this talk
One other quick tip. Try to avoid raw pointers unless you really have no choice. For example AudioStream* stream; would be better as std::shared_ptr and std::vector* players; can be refactored to std::vector players;
QUESTION
I currently have a piano app which plays sounds when pressing any button, here's a snippet of the code in main.dart :
...ANSWER
Answered 2021-Apr-27 at 04:46You can create an array to store the tone number that has been pressed. I usually use provider for global variables so you can show the updated history list whenever it has been changed.
In my case I probably will save in List.
QUESTION
I did a pure CSS/JS piano keyboard using the AudioContext object but I have two problems related to the playTone function:
On Chrome/android (
v.89.0.4389.105/Android 10) it seems that the volume is halved at every key pressed: after a few notes played the volume is not audible anymore.On Firefox (
v.88/MacOS 10.15.7) I hear a crackle at the end of every key pressed.
On latest Chrome/MacOS, for comparison, it sounds good.
...ANSWER
Answered 2021-Apr-26 at 10:01The problem with the volume in Chrome can be solved by using only one global AudioContext which then needs to be resumed in the click handler.
The crackling in Firefox can be removed by adding an explicit value to the automation timeline to start with.
QUESTION
I have tried all the solutions on the internet but have not been able to print the pictures on the screen in any way. Am I making a very simple mistake? File names and folders are correct.
While giving the path, I want to get the picture registered with the name subclubName from the related folder by giving sub-club name from the data. E.g Art.jpg. I would be very happy if you could help.
...ANSWER
Answered 2021-Apr-22 at 07:15you must use require. like this:
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