pyAudio playing variable

[Talking2442]

Hello Guys,

I want play a variable with pyAudio like with:

import pyaudio
import math
import struct
import wave
import time
import os

Threshold = 10

SHORT_NORMALIZE = (1.0 / 32768.0)
chunk = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 16000
swidth = 2

TIMEOUT_LENGTH = 5

f_name_directory = r'C:\records'


class Recorder:

    @staticmethod
    def rms(frame):
        count = len(frame) / swidth
        format = "%dh" % (count)
        shorts = struct.unpack(format, frame)

        sum_squares = 0.0
        for sample in shorts:
            n = sample * SHORT_NORMALIZE
            sum_squares += n * n
        rms = math.pow(sum_squares / count, 0.5)

        return rms * 1000

    def __init__(self):
        self.p = pyaudio.PyAudio()
        self.stream = self.p.open(format=FORMAT,
                                  channels=CHANNELS,
                                  rate=RATE,
                                  input=True,
                                  output=True,
                                  frames_per_buffer=chunk)

    def record(self):
        print('Noise detected, recording beginning')
        rec = []
        current = time.time()
        end = time.time() + TIMEOUT_LENGTH

        while current <= end:

            data = self.stream.read(chunk)
            if self.rms(data) >= Threshold: end = time.time() + TIMEOUT_LENGTH

            current = time.time()
            rec.append(data)
        # self.write(b''.join(rec))
        self.play(b''.join(rec))


"""
    def write(self, recording):
        n_files = len(os.listdir(f_name_directory))

        filename = os.path.join(f_name_directory, '{}.wav'.format(n_files))

        wf = wave.open(filename, 'wb')
        wf.setnchannels(CHANNELS)
        wf.setsampwidth(self.p.get_sample_size(FORMAT))
        wf.setframerate(RATE)
        wf.writeframes(recording)
        wf.close()
        print('Written to file: {}'.format(filename))
        print('Returning to listening')
"""


    def play(self, recording):
        print('Playing...')
       while len(recording) > 0:
            self.stream.read(recording)
            self.stream.readframes(CHUNK)

        # cleanup stuff.
        self.p.close()
        self.p.terminate()


def listen(self):
    print('Listening beginning')
    while True:
        input = self.stream.read(chunk)
        rms_val = self.rms(input)
        if rms_val > Threshold:
            self.record()


a = Recorder()

a.listen()

The original script cames from Stack Overflow and I want playing the variable without writing it to file (protect HDD healthy).

But I cant get them working...

Anyone can help me?

[Talking2442]

Please guys I'm new here and I want to learn Python.

[snippsat]

Please guys I'm new here and I want to learn Python.

But I cant get them working...

That's not a good way ask a question,we can not guess what's not working for you.
Can show a quick run,and i use code from Doc Example: Blocking Mode Audio I/O,which i just copy and call pyaudio_test.py.
Also to run isolated i use virtual environment and PyAudio wheel from Gohlke.

# Make
G:\div_code
λ python -m venv audio_env

# cd in 
G:\div_code
λ cd audio_env\

# Activate
G:\div_code\audio_env
λ G:\div_code\audio_env\Scripts\activate

# Install
(audio_env) G:\div_code\audio_env
λ pip install PyAudio-0.2.11-cp38-cp38-win_amd64.whl
Processing g:\div_code\audio_env\pyaudio-0.2.11-cp38-cp38-win_amd64.whl
Installing collected packages: PyAudio
Successfully installed PyAudio-0.2.11

# Test
(audio_env) G:\div_code\audio_env
λ python pyaudio_test.py Alarm.wav

So it's working playing Alarm.wav fine.

[Talking2442]

Yes thats true but on this example you play a WAV file not a WAV variable.
On my example it neeeds an Integrer instead of bytes so I've tried

    def play(self, recording):
        print('Playing...')
       while len(recording) > 0:
            # self.stream.read(recording)
            self.stream.read(int.from_bytes(recording, 'little', signed=True))
            self.stream.readframes(CHUNK)
 
        # cleanup stuff.
        self.p.close()
        self.p.terminate()

But the error is:

Error:
"/home/user/.local/lib/python3.7/site-packages/pyaudio.py", line 608, in read
    return pa.read_stream(self._stream, num_frames, exception_on_overflow)
OverflowError: Python int too large to convert to C long

Any better solutions to fix that?

I want understand and learn how to fix errors not giving anyone a Job

Regards
Talking2442