[Scilab-users] strange sounds repeated over and over in scilab 6.1.0

[Federico Miyara]

Just a thought: nbits should never have been an input argument of a 
playback function, since the precision of the internal data is much 
higher than even 24 bit, the higher bit resolution usually found in 
audio playback systems (not to be confused with the internal 
representation of many digital signal processors; I mean D/A 
converters). By the way, 24 bit means 144 dB signal/noise ratio, much 
higher than currently attainable analog performance.

The only situation where that could be of some interest would be to 
demonstrate in the classroom the effects of reducing the number of bits 
per sample. But as such case is very specific and quite rare, it would 
be better just to requantize de original signal getting entire control 
of the situation, being able to measure noise and /or distortion, plot 
the stair-like waveform and listen to the result.

Federico Miyara


On 02/03/2020 13:03, Samuel Gougeon wrote:
> Le 02/03/2020 à 16:45, Perrichon a écrit :
>>
>> Ok but this is a strange way to handle backward compatibility
>>
>
> I agree. This is why i asked for confirmation to a second reviewer 
> before removing nbits,
> when the first reviewer asked me to remove it.
> nbits was never implemented (never actually used in the function), 
> just present as a dead input.
> But it was not disturbing.
> Now, i guess that sometimes it's useful to clean the code. I think 
> that the next input argument "aplay"
> after nbits is (very) rarely used (it addresses "only" Linux and MacOS 
> users (15%), and only if
> its default value is not convenient (? 5% of 15% ?). Most often, only 
> the first 2 arguments are used.
>
>
>
>
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