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-lauwershttp://soundcloud.com/kristof-lauwers http://kristoflauwers.domainepublic.net ____________________________________
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-listhttp://lists.puredata.info/listinfo/pd-list
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list