-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Thanx IOhannes,
First : Isolate the biquad~ "stuff" has solved the issue (without [clip~ -1 1]) Secondly : Adding a [clip~ -1 1] just before the [dac~] doesn't solve the problem. Thirdly : But I don't know yet where the problem comes : if a [clip~ -1 1] is added after the biquad~ "stuff", it works, no crash. I have to dig a little bit more... ++ Jack Le 14/07/2015 16:53, IOhannes m zmoelnig a écrit : > On 2015-07-14 16:11, Jack wrote: >> Hello, >> >> Jumping fast to certain coefficient (for frequency around 40/50 >> Hz and Q around 0.7) cut sound on iOS (iPad) when i use libpd (it >> seems to be OK with MacOSX). I need to restart the iOS after. Do >> you know what I have to do to solve this issue ? > > provide a test-patch. > > two ideas: - the quick jump causes some very high sample values. > the iOS system limiter~ mutes the signal and takes ages to recover > (too long to wait). a quick fix would be to use [clip~] just before > the [dac~]s > > - the quick jump might cause a NaN to be introduced in the signal > vector; due to the recursive nature of [biquad~] all successive > samples become NaNs. no quick fix for this. try to get the sample > values after muting. e.g. using [print~], or even just [env~]... > > fmasdr IOhannes > > > > _______________________________________________ > Pd-list@lists.iem.at mailing list UNSUBSCRIBE and > account-management -> http://lists.puredata.info/listinfo/pd-list > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJVqPFjAAoJEOuluecjw8GUXkkH/RPsLKWwZLlpZ+w3He932OIh IZtaQN+dE22ZNYlbmkF2hph/B+27fGf1Nn36N/xmhmYQ3Ar/Jcakdosp3GZRZeUt ZUlTnJpBAQIzASYvDw3eRyINOkvV9I52j/UFaWNolK7J4dJcLvMoMxAABDgTVgLd B01SNCGx2g4A2s2krmkhWH5LlQgZzTaUWzI/rk0dtjC8QN76ek6PuR67tw17Yx9c NOtGOOXVapOqylBzMxvV05iwOM4dJlP9tSLv+BYCGngvDFfdzmUQ9JGrL8IYB9py P1/j1VqdGp2sRUJ4HQwpwpG3wH3gs/aWSVQINqI5IqMPQndA/CkChZjLSr1Sirk= =YLEk -----END PGP SIGNATURE----- _______________________________________________ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
