alert sound

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hajer
hajer 2011-12-20
评论： Benjamin Wong 2020-11-6
Hi , i have if condition in my code and i want to produce alert sound in wrong case. can i do that ????

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Daniel Shub
Daniel Shub 2011-12-20
What about
sound(randn(4096, 1), 8192)

更多回答（5 个）

Jan
Jan 2011-12-20
WarnWave = [sin(1:.6:400), sin(1:.7:400), sin(1:.4:400)];
Audio = audioplayer(WarnWave, 22050);
play(Audio);
  4 个评论
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Min Son
Min Son 2019-6-28
Cool sound!
v k
v k 2020-10-26
Need something similar to this, which gives a sound when the Whatsapp message comes, or an incoming SMS. A whooshing or a swishing sound.
What structure of WarnWave will give such a notification sound?

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Jan
Jan 2011-12-20
Data = load('handel.mat');
sound(Data.y, Data.Fs)
  4 个评论
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Daniel Shub
Daniel Shub 2011-12-20
I agree, but for alerts you never know.
Benjamin Wong
Benjamin Wong 2020-11-6
this is absolutely briliant

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Jan
Jan 2011-12-20
This calls the message sound of the operating system:
beep
  2 个评论
Daniel Shub
Daniel Shub 2011-12-20
I had forgotten about beep.
Paul Hoffrichter
Paul Hoffrichter 2020-10-16
beep beep beep
Nice and succinct. Thanks.

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Daniel Shub
Daniel Shub 2011-12-20
So here is an absolutely ugly Windows XP hack that gets the SystemExclamation sound from the registry and replaces environment variables with the correct values and then plays the sound.
[~, tempStr] = system('reg query HKEY_CURRENT_USER\AppEvents\Schemes\Apps\.Default\SystemExclamation\.Current');
[~, valueStart] = regexp(tempStr, 'REG_EXPAND_SZ ');
soundStr = tempStr(valueStart+1:(end-1));
envVarSymbol = strfind(soundStr, '%');
while length(envVarSymbol) >= 2
soundStr = [soundStr(1:(envVarSymbol(1)-1)), ...
getenv(soundStr((envVarSymbol(1)+1):(envVarSymbol(2)-1))), ...
soundStr((envVarSymbol(2)+1):end)];
envVarSymbol = strfind(soundStr, '%');
end
[x, Fs] = wavread(soundStr);
sound(x, Fs)
I need to think about this idea more. Interfaces really should be playing system sounds (yuk, who actually has system sounds set to on) at the appropriate times.
  2 个评论
v k
v k 2020-10-26
'wavread' incorrect.
v k
v k 2020-10-26
replaced by 'audioread'.

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hajer
hajer 2011-12-20
thank you everyone . i have alert sound but my problem how i can call it . Now knew the solution .I'm happy to help me.

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