zulko / pianoputer

Use your computer keyboard as a "piano".

Pianoputer

This library lets you to play your computer keyboard like a piano. Here is a video of it in action on a French azerty keyboard.

Play!

Pianoputer only works in python3 so make sure you are using python3

pip install pianoputer
pianoputer

After a few seconds, the below image will appear in a window, indicating that the program is ready. The cyan key is the key that the sample wav file is assigned to. By default this is c4, the piano middle C at 261.6 hz All white and black keys are transposed up and down from the anchor cyan key.

Changing the sound file

You can provide your own sound file with

pianoputer --wav my_sound_file.wav

For example:

pianoputer -w audio_files/bowl_c6.wav

All white and black keys are transposed up and down from the anchor cyan key.

Changing the keyboard layout

Note that the default keyboard configuration (stored in file keyboards/qwerty_piano.txt) is for the most commonly used QWERTY keyboards. You can change the configuration so that it matches your keyboard, for instance using the alternative keyboards/azerty_typewriter.txt:

pianoputer -k keyboards/azerty_typewriter.txt

These .txt files simply contain a sequence of key names and are easy to edit. For convenience this repository also provides a make_kb_file.py program:

python make_kb_file.py

This will let you press the keys in the order that you want, and create a new keyboard configuration file, by default my_keyboard.kb (just follow the instructions). You can then use the custom keyboard file with the --keyboard argument

Local Installation

python3 -m venv venv
source venv/bin/activate
# if you want to edit the program and have pianoputer use your edits
pip install -e .
# to install pianoputer separately in your virtual environment
pip install .
pianoputer

Attributions

• c4 piano sample from https://en.wikipedia.org/wiki/File:Middle_C.mid

Changelog

https://github.com/Zulko/pianoputer/tree/master/CHANGELOG.md

pianoputer's Issues

Nothing happens?

I tried opening both .py files and it opens for a split second, then closes. I have python 2.7.15 installed.. should I have 3.7? What am I doing wrong?
EDIT: Nevermind, I didn't have the requirements

Publishing to pypi

@Zulko do you want to do it or do you want me to?
We have:

make testpypi
make pypi

in our Makefile to allow for easy publishing and the README.md will be used as the package description in pypi.

License

Is it possible to change license to some open source one? For example, gnu, apache2, mit?

video effect when playing pianoputer

@Zulko @spacether I made a version of pianoputer with an animated fire processed in real time.
This is not essential, but with the graphic version, the window look a bit more appealing.
The fire effect is base on a CYTHON algorithm that provide C performance to PYGAME and the animation will run on most computer over 100 fps (I am achieving a 200 FPS on mine).
The only downside would be the compilation of the CYTHON code for every version of python interpreter and CYTHON would be required in PYPI packages and added as a requirement in the project.
In the mean time, the easiest solution would be to build an executable file that will install pianoputer on window.

Just a suggestion, but if you are interested please check into https://github.com/yoyoberenguer/pianoputer
Download the latest version ver 1.0.1 (exe) and watch a cosy fire

Kind Regards

Unable to Transpond Sound File

Tried running this on macOS 10.12.3, python 2.7.13, scipy 0.18.1, numpy 1.12.0, pygame 1.9.3

Got the following error:

$ python pianoputer.py 
Transponding sound file... Traceback (most recent call last):
  File "pianoputer.py", line 126, in <module>
    main()
  File "pianoputer.py", line 90, in main
    transposed_sounds = [pitchshift(sound, n) for n in tones]
  File "pianoputer.py", line 49, in pitchshift
    stretched = stretch(snd_array, 1.0/factor, window_size, h)
  File "pianoputer.py", line 22, in stretch
    result = np.zeros(len(snd_array) / factor + window_size)
TypeError: 'float' object cannot be interpreted as an index

Cannot build/run from source

Good day to you,

Where do you find the package keyboardlayout (no included in the source code)

I tried pip install keyboardlayout but cannot find it anywhere (is it on Pypi?)

import keyboardlayout as kl
ModuleNotFoundError: No module named 'keyboardlayout'

Kind Regards

AttributeError: 'Event' object has no attribute 'key'

I've found this error and I did fix it.
I put the lines 293-296 key = keyboard.get ... in before the line 291 elif event.key ...
the error is that you called the function before you defined it. Hope that helped.

not supporting two-channel wave files

I already know about this #1
but if I remove one of the channels, the quality decreases
can you add two-channel support?

Direction on the input audio file for the azerty keyboard

Thank you for making this tool!
I am working on some updates to it at: https://github.com/spacether/pianoputer/tree/misc_improvements
What is the expected input note for the audio file for the azerty keyboard?
Should it be middle c, c4?
In the code I see that it makes 25 tones higher and lower than the input audio file.

Harpsichord more than a PianoForte??

Hi
Very interesting project! But looking at your project, isn't it more of an Harpsichord than a piano that we are creating?
I mean, it doesn't seem to record the speed with which we are typing each key (which determine the loudness on a normal piano).
Would it be possible to take into account this type of information thanks to your program?

Running in background

Hi, thank you for this app, it is extremely useful, I like it very much!
I would like to use it in "background" so I can create/use sounds(my piano) also when I'm typing in other windows (i.e. when pygame window is not focused...)
Do you have idea if this is possible maybe?
I'm really not much into python, that's why I ask. Thanks for any reply!
BR, Milan

pitch_shift() takes 1 positional argument but 2 positional arguments (and 1 keyword-only argument) were given

(v3_8) PS C:\Users\WeiHao\PycharmProjects\pianoputer> pianoputer
pygame 2.5.1 (SDL 2.28.2, Python 3.8.17)
Hello from the pygame community. https://www.pygame.org/contribute.html
Generating samples for each key
Transposing note 1 out of 43 for Key.BACKQUOTE
Traceback (most recent call last):
File "C:\Users\WeiHao.conda\envs\v3_8\lib\runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\Users\WeiHao.conda\envs\v3_8\lib\runpy.py", line 87, in run_code
exec(code, run_globals)
File "C:\Users\WeiHao.conda\envs\v3_8\Scripts\pianoputer.exe_main.py", line 7, in
File "C:\Users\WeiHao.conda\envs\v3_8\lib\site-packages\pianoputer\pianoputer.py", line 345, in play_pianoputer
key_sounds = get_or_create_key_sounds(
File "C:\Users\WeiHao.conda\envs\v3_8\lib\site-packages\pianoputer\pianoputer.py", line 102, in get_or_create_key_sounds
sound = librosa.effects.pitch_shift(y, sr, n_steps=tone)
TypeError: pitch_shift() takes 1 positional argument but 2 positional arguments (and 1 keyword-only argument) were given

Another sound file cannot be used

This sound file, although having about the same length and similar structure, cannot be opened. I'm not sure what's the reason. (Audacity doesn't support other bitrates, if that's the matter.)
https://dl.dropboxusercontent.com/u/6721960/2014/throat.wav.zip

Traceback (most recent call last):
  File "pianoputer.py", line 47, in <module>
    transposed_sounds = [pitchshift(bowl_sound, n) for n in tones]
  File "pianoputer.py", line 39, in pitchshift
    stretched = stretch(snd_array, 1.0/factor, window_size, h) 
  File "pianoputer.py", line 22, in stretch
    s1 =  np.fft.fft(hanning_window * a1)
ValueError: operands could not be broadcast together with shapes (8192) (8192,2) 

Idea: Try mapping the keys to a stenography machine layout.

Sounds weird but I think there'd be a better reception to this -- especially if you knew how one worked. the idea is to be able to press all the buttons on the machine at once. So, you could arguably get better playing power from the layout.

value error

I have tried running this on windows 10, python 3.8.2, but I got this error:
line 125, in
main()
line 89, in main
transposed_sounds = [pitchshift(sound, n) for n in tones]
line 89, in
transposed_sounds = [pitchshift(sound, n) for n in tones]
line 48, in pitchshift
stretched = stretch(snd_array, 1.0/factor, window_size, h)
line 29, in stretch
s1 = np.fft.fft(hanning_window * a1)
ValueError: operands could not be broadcast together with shapes (8192,) (8192,2)

I am relatively new to Python, and completely new to pygame, scipy, and numpy, so some assistance would be nice.

PYGAME 2 , SDL2: fix mixer errors, mixer.init(..., allowchanges=0) #861

When starting the program with PYGAME 2.00 version, I had the following exception:

Traceback (most recent call last):
File "C:\Users\yoann\AppData\Local\Programs\Python\Python36\lib\site-packages\pygame\sndarray.py", line 94, in make_sound
return numpysnd.make_sound(array)
AttributeError: 'NoneType' object has no attribute 'make_sound'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "pianoputer.py", line 129, in
main()
File "pianoputer.py", line 103, in main
key_sound = dict(zip(keys, sounds))
File "C:\Users\yoann\AppData\Local\Programs\Python\Python36\lib\site-packages\pygame\sndarray.py", line 97, in make_sound
return numpysnd.make_sound(array)
File "C:\Users\yoann\AppData\Local\Programs\Python\Python36\lib\site-packages\pygame_numpysndarray.py", line 74, in make_sound
return mixer.Sound(array=array)
ValueError: Array must be 2-dimensional for stereo mixer

This issue is related to PYGAME case : SDL2: fix mixer errors, mixer.init(..., allowchanges=0) #861

Suggestion to solve this issue (for both version of the program)

---

for single track sound

---

if int(pygame.version.ver[0]) >= 2:
    pygame.mixer.init(fps, -16, 1, 2048, allowedchanges=0)
else:
  pygame.mixer.init(fps, -16, 1, 2048)

---

for stereo sound

---

if int(pygame.version.ver[0]) >= 2:
    pygame.mixer.init(fps, -16, 2, 2048, allowedchanges=0)
else:
    pygame.mixer.init(fps, -16, 2, 2048)

hey why doesnt this thing get fixed

import pygame
pygame.init()
a=500
b=500
screen=pygame.display.set_mode((a,b))
run=True
x=250
y=250
while run:
for event in pygame.event.get():
if event.type==pygame.KEYDOWN:
if event.key==pygame.k_w:
y=y-5
if y<=0:
y=b
if event.key==pygame.k_s:
y=y+5
if y>=b:
y=0
if event.key==pygame.k_a:
x=x-5
if x<=0:
x=a
if event.key==pygame.k_d:
x=x+5
if x>=a:
x=0

screen.fill((0,0,0))
pygame.draw.circle(screen,(255,255,255),(x,y),20,0)
pygame.display.update()
pygame.displaySurfacequit()

and this happens when i run the file
Python 3.12.3 (tags/v3.12.3:f6650f9, Apr 9 2024, 14:05:25) [MSC v.1938 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license()" for more information.

= RESTART: C:\Users\zagros\Desktop\کد خودم.py
pygame 2.5.2 (SDL 2.28.3, Python 3.12.3)
Hello from the pygame community. https://www.pygame.org/contribute.html
Traceback (most recent call last):
File "C:\Users\zagros\Desktop\کد خودم.py", line 16, in
if event.key==pygame.k_s:
AttributeError: 'pygame.event.Event' object has no attribute 'key'

Can't save KB file

revision e974a49

Traceback (most recent call last):
  File "make_kb_file.py", line 20, in <module>
    print ("Done. you have a new keyboard configuration file: %s"%skb_file)
NameError: name 'skb_file' is not defined

跪拜大佬牛年福星高照 (Kneel down to the big man, the year of the ox???)

1）如何改善音质？
2）可否通过按键或者触控表现出乐音的强弱变化？

Can i install this with python 3.11?

Can i install this with python 3.11? im not very skilled with computers, the only way is with python 3.6-3.7 higher? is there a way to run this or install this with python 3.11?

请教您键盘布局图是怎么绘制的？(Ask you how to draw the keyboard layout)

我用的键盘布局略有不同，想尝试绘制相合的键盘布局图且不影响程序的正常运行，另外，想尝试按键动作与用户界面上的键盘图互动，最好能够支持触控动作，方便在触控屏幕上运行，而且，可以尝试通过触控点的面积大小控制音量强弱，通过触摸动作控制音高等表现形式