[PD] convert signal to 16bit stream

[patrice colet]

Thank you,

  I'm not sure it's possible to perform audio modulo with internals 
only, here is a workaround with expr~


Le 07/11/2016 à 18:02, Roman Haefeli a écrit :
> On Mon, 2016-11-07 at 17:49 +0100, patrice colet wrote:
>> Hello,
>>
>>    this is quite interesting but there is something I don't get in
>> attached patch, both 1 and -1 outputs the same thing, so I don't know
>> if
>> I've misinterpreted something or if there is a mistake in message
>> computing
> No, you're right. The message based reference is already wrapping over.
> I added a [clip -32768 32767] to avoid that.
>
> See attachment.
>
> Roman
>
>
>
>
>> Le 07/11/2016 à 16:24, Roman Haefeli a écrit :
>>> Hi all
>>>
>>> In order to store audio data more efficiently in netpd presets and
>>> also
>>> to transmit live audio through OSC, I'm thinking of ways to convert
>>> an
>>> signal to a 16-bit stream represented as two signals, one for each
>>> byte, the first for MSB and the second for LSB. I already came up
>>> with
>>> a few solutions, but I'm not totally happy with any of them because
>>> they are not very efficient or/and have strange edge cases. It
>>> turns
>>> out what seems a simple task is a bit more complex and probably has
>>> quiet a few totally different solutions.
>>>
>>> I would be interested to see with what solutions people come up
>>> with.
>>> Consider it a puzzle, a brain teaser (in case you're done writing
>>> your
>>> paper for pdcon and need some distraction).
>>>
>>> Requirements:
>>>    * It must be done in signal domain (I was doing it in message
>>> domain
>>>      yet, but performance is obviously bad)
>>>    * Only vanilla objects are allowed.
>>>    * Input is in the range -1 to 1. Input outside this range should
>>> be
>>>      clipped and not wrapped around.
>>>    * Output is two signals, each consisting of an integer value
>>> between
>>>      0 and 255
>>>    * The two bytes represent a 16-bit _signed_ integer
>>>
>>> You can compare your output with the message version in attached
>>> patch.
>>> If this generates interest and makes some people participate, I'll
>>> disclose my solutions after people submitted their solutions.
>>>
>>>
>>>
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