No sound output on Linux Mint

[ullix]

Using sounddevice in Python 3.11.2 on Linux Mint LMDE6 (based on debian12) but not getting any sound output using this simple test program:

import sounddevice as sd
import soundfile   as sf

path = "gres/bip.wav"

print("sounddevice")
data, samplerate = sf.read(path)
sd.play(data, samplerate)
sd.wait()

No error message of any kind. It works well when using playsound3 instead.

And both work well on Win11 Pro 23H2.

[ullix]

Just a thought: does sounddevice require pulseaudio, or does it work just as well with pipewire?

[iplayfast]

I'm on linux mint 22 (wilma) and it works.
This file produces sound on my machine. #578

import numpy as np
import sounddevice as sd
import time
# Configuration
sample_rate = 44100  # Sampling frequency
frequency = 1000  # Frequency of the beep (Hz)
beep_duration = 0.2  # Duration of each beep (seconds)
pause_duration = 0.5  # Duration of silence between beeps (seconds)
num_beeps = 4  # Number of beeps

# Generate one beep
t_beep = np.linspace(0, beep_duration, int(sample_rate * beep_duration), endpoint=False)
beep = 0.5 * np.sin(2 * np.pi * frequency * t_beep)  # Amplitude = 0.5

# Generate silence
silence = np.zeros(int(sample_rate * pause_duration))

# Concatenate beeps and silence into a single sample
pattern = [beep, silence] * (num_beeps - 1) + [beep]  # No silence after the last beep
audio_sample = np.concatenate(pattern)

# Play the sample
print("playing 4 beeps with blocking = True (I hear 3)")
sd.play(audio_sample, sample_rate, blocking=True)
time.sleep(1)
print("playing 4 beeps again with blocking =True  (this time I hear 4)")
sd.play(audio_sample, sample_rate, blocking=True)

print("playing 4 beeps with blocking =False (I hear 1 to 2 all run together)")
sd.play(audio_sample, sample_rate, blocking=False)
time.sleep(1)
print("playing 4 beeps again with blocking = False (this time I hear ?)")
sd.play(audio_sample, sample_rate, blocking=False)

print("last time playing 4 beeps with blocking = True (I hear 4)")
sd.play(audio_sample, sample_rate, blocking=True)
time.sleep(1)