* kristof lauwers <p...@kristoflauwers.domainepublic.net> [2012-08-07 16:42]: > At 14:07 2012-08-07, i go bananas wrote: > > >If you only want to playback the data, then the easiest way might > >be just to change pd's sample rate to 256hz. > > > >If that doesn't work, maybe have a look at readsf~ help to see how > >to manually set playback parameters > > well, i want to use the EEG data as control data for an audio > signal, so lowering the samplerate is no option.. > the help from readsf~ doesn't say anything about changing the > samplerate.. (but shouldn't it just read the right samplerate from > the file? it's a normal .wav file..) > > At 15:17 2012-08-07, Johanna Nowak wrote: > > > > have a look at the help-file for the block~ object, which can do > > up/downsampling in a subpatch. > > i tried running it from a subpatch with a lower samplerate, but that > didn't change anything.. > > > If you have enough ram, you could also load all soundfile data into 28 > > tables, and read from those using tabread4~ or even a message-based > > tabread followed by a line~. > > i will give that a try. thanks for the suggestion!
Have you tried opening the 256Hz wav file(s) in another application, such as sox[1], and resampling it there, resulting in a 44.1kHz file? just an idea best, Jo [1] http://sox.sourceforge.net/sox.html > > greetings, > > Kristof > > > >On Tuesday, August 7, 2012, kristof lauwers wrote: > >Hi, > > > >I'm trying to play back a rather uncommon file with readsf~. It's > >3 hours of EEG data, on 28 channels, with a samplerate of only 256 > >hz. At first sight, readsf~ deals well with the 28 channels, but > >it seems to play it back way too fast.. Is there a way to make rit > >play back the file at the right speed? > >I'm using Pd version 0.40.3-extended on windows xp.. > > > >thanks! > > > >Kristof > > > > > > > >____________________________________ > > > ><http://soundcloud.com/kristof-lauwers>http://soundcloud.com/kristof-lauwers > >http://kristoflauwers.domainepublic.net > >____________________________________ > > > >_______________________________________________ > >Pd-list@iem.at mailing list > >UNSUBSCRIBE and account-management -> > ><http://lists.puredata.info/listinfo/pd-list>http://lists.puredata.info/listinfo/pd-list > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list