import pyaudio
import wave
import tkinter as tk
from tkinter import Button, Label

CHUNK = 1024 
FORMAT = pyaudio.paInt16 #paInt8
CHANNELS = 1 
RATE = 44100 #sample rate
RECORD_SECONDS = 5
WAVE_OUTPUT_FILENAME = "output.wav"

p = pyaudio.PyAudio()

stream = p.open(format=FORMAT,
                channels=CHANNELS,
                rate=RATE,
                input=True,
                frames_per_buffer=CHUNK) #buffer

frames = []

root = tk.Tk()
root.title("Voice Recorder")

label = Label(root, text="Press button to start recording")
label.pack()

def start_record():
    global frames
    frames = []
    label.config(text="Recording...")
    stream.start_stream()

def stop_record():
    label.config(text="Recording stopped")
    stream.stop_stream()
    wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
    wf.setnchannels(CHANNELS)
    wf.setsampwidth(p.get_sample_size(FORMAT))
    wf.setframerate(RATE)
    wf.writeframes(b''.join(frames))
    wf.close()

record_button = Button(root, text="Record", command=start_record)
record_button.pack()

stop_button = Button(root, text="Stop", command=stop_record)  
stop_button.pack()

def callback(in_data, frame_count, time_info, status):
    frames.append(in_data)
    return (in_data, pyaudio.paContinue)

stream.start_stream()

try:
    while stream.is_active():
        stream.write(callback(in_data, frame_count, time_info, status))
except KeyboardInterrupt:
    pass

stream.stop_stream()
stream.close()
p.terminate()

root.mainloop()