Delay before sounds played

[TechnoVisual]

When playing a sound (wav and ogg) from the 'sounds' directory using: sounds.soundname.play() there is a noticeable delay (.5 sec) before the sound is played. This also happens in Pygame when using:

effect = pygame.mixer.Sound('sounds/soundname.wav')
effect.play() 

With Pygame the delay is removed by using:

pygame.mixer.pre_init(22050, -16, 1, 256)
pygame.mixer.init()

before pygame.init()

[lordmauve]

Are there any specific sound files this occurs for or does not?

Is this on Raspberry Pi?

[TechnoVisual]

Hi Daniel,

It’s happening with all the sounds I have tried - I have tried sample rates 44100, 22050 and 8000 in wav 16, 32 and 8 bit integer (although I think I got an error on the 32bit) - I also tried saving as an ogg with 50% compression (I’m not too familiar with the format so I wasn’t sure what else to try).

I noticed the delay on a PC but as it’s for the Raspberry Pi I tried on that too and had the same results.

The fix using pre_init has only been tested on a PC - I have attached the code I used (with pgzero code commented out)

I have also attached the wav files I am using.

Thanks,

Mark

On 28 Aug 2018, at 08:17, Daniel Pope [email protected] wrote:

Are there any specific sound files this occurs for or does not?

Is this on Raspberry Pi?

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[pixelSmuggler]

This is a pygame initialization issue. See this thread : https://stackoverflow.com/questions/18273722/pygame-sound-delay It can be fixed (Verified on Windows) by changing line 2 of runner.py to: pygame.mixer.pre_init(frequency=22050, size=-16, channels=2, buffer=512)