[PD] [tabread4~] bug???

[Lorenzo Sutton]

Hi,

On 24/07/12 03:55, Alexandre Torres Porres wrote:
> Ok, as long as we're on it, here's another thing I found while 
> patching around. Probably related to the last crazy behaviour I just 
> described, but something on its own.
>
> It is simpler than phase vocoding, it's just something weird about 
> sampling into arrays and playing with [tabread4~]. Well, maybe there's 
> a relation to the bug I just reported (check my last email sent to the 
> list please), because that uses [tabread4~] as well.
>
> So, if I record onto a a somewhat big array, there comes a time where 
> it just fails completely when playing it through [tabread4~], but not 
> with [tabplay~]. It also does not show it anymore after that 
> particular point in the array itself. The point is around 380 seconds 
> (6 minutes and 20 seconds).

This is a known limitation with [tabread4~] and [tabread~] and pops up 
every now and then [1] (it could probably be useful to mention it in 
[tabread~] help).

Long story short: you are rather safe with [tabread~] and [tabread4~] 
for arrays as big as 2^24 - that is 16777216
Length in seconds will vary depending on sample-rate: Here a table for 
commonly used samplerates:

+--------+------------+
| s.rate |   seconds  |
+--------+------------+
| 44100  |    380.44  |
+--------+------------+
| 48000  |    349.53  |
+--------+------------+
| 88200  |    190.22  |
+--------+------------+
| 96000  |    174.76  |
+--------+------------+

Hope this helps.
Lorenzo.

[1] See here a thread from 2006: 
http://lists.puredata.info/pipermail/pd-list/2006-08/040671.html and 
here for a clear explanation: 
http://puredata.hurleur.com/viewtopic.php?pid=28924#p28924