I've just tested with a file containing a single sine tone. And the result is very audible even on my laptop's internal speakers. Here are the original and the playback (and recorded) results.
https://dl.dropboxusercontent.com/u/47945259/sine.wav https://dl.dropboxusercontent.com/u/47945259/sinePlayedBack.wav Listen out for the added frequencies after 00':05". P *www.peimankhosravi.co.uk || RSS Feed<http://peimankhosravi.co.uk/miscposts.rss> || Concert News <http://spectralkimia.wordpress.com/>* On 28 October 2013 20:35, peiman khosravi <[email protected]> wrote: > Hi William, > > Thanks for the suggestions. This is really useful as I didn't know that > you can format messages for soundfiler like that. > > So I made all of your suggested changes but I'm still getting the funny > noisy playback. It sounds almost ring-modulated (e.g. you hear a > lower-frequency sideband at around 10 seconds into the file, which isn't in > the input file). Here's the recorded output of the patch: > https://dl.dropboxusercontent.com/u/47945259/testoutput.wav > > Could it be an OS X issue? > > Thanks > Peiman > > PS I've attached the new patch with your suggested changes. > > > > > > *www.peimankhosravi.co.uk || RSS > Feed<http://peimankhosravi.co.uk/miscposts.rss> || > Concert News <http://spectralkimia.wordpress.com/>* > > > On 28 October 2013 12:18, William Brent <[email protected]> wrote: > >> Hi Peiman, I notice a few things: >> >> 1) your soundfile is being truncated to 4000000 samples >> >> 2) you're loading the left channel of your stereo file into both arrays >> >> 3) after calculating the correct frequency for phasor~ to play at normal >> speed, you're multiplying by zero. >> >> With 3), maybe you have that there so you can scale the playback speed >> with a control later. But re: 1 & 2, try a message to soundfiler like this: >> >> read -maxsize 6.24e+06 -resize $1 test_L test_R >> >> That will increase soundfiler's default maxsize so your complete sample >> can be loaded. Also note that with the "read" command you can list 2 tables >> to load to with stereo audio files. You had those tables listed in separate >> messages…with 2 separate "read" calls, soundfiler is starting over each >> time and has no way of knowing that you want to continue where you left off. >> >> I didn't listen carefully with headphones, but after those changes I >> didn't hear an obvious difference between tabread4~'s playback of your file >> vs. my web browser's. >> >> >> Hope that helps, >> William >> >> >> >> On Sun, Oct 27, 2013 at 9:23 AM, peiman khosravi < >> [email protected]> wrote: >> >>> Attached is a simple patch that reads sound file data from an array with >>> tabread4~. >>> >>> Does someone know why the result is so noisy? Please try with this sound >>> file (96k 24bit): https://dl.dropboxusercontent.com/u/47945259/test.aif. >>> >>> It sounds like some sort of extreme quantisation noise. But maybe I've >>> missed something in the patch. >>> >>> I'm on the latest version of pd vanilla on os x 10.7.5. >>> >>> Many Thanks >>> Peiman >>> >>> >>> #N canvas 439 22 536 684 10; >>> #X obj 77 213 soundfiler; >>> #X obj 77 113 openpanel; >>> #X obj 62 414 *~; >>> #X obj -8 305 /; >>> #X obj 77 95 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1 >>> -1; >>> #N canvas 0 22 450 278 (subpatch) 0; >>> #X array test_R 4e+06 float 2; >>> #X coords 0 1 4e+06 -1 200 140 1 0 0; >>> #X restore 214 -69 graph; >>> #X obj 59 549 dac~; >>> #X obj -8 368 phasor~; >>> #X obj 7 248 t b f; >>> #X msg 31 334 0; >>> #X obj -8 281 pack 96000 f; >>> #X obj 16 474 tabread4~ test_L; >>> #X obj 120 474 tabread4~ test_R; >>> #X msg 219 152 read -resize \$1 test_R; >>> #X msg 77 152 read -resize \$1 test_L; >>> #N canvas 0 22 450 278 (subpatch) 0; >>> #X array test_L 4e+06 float 2; >>> #X coords 0 1 4e+06 -1 200 140 1 0 0; >>> #X restore 8 -68 graph; >>> #X obj -8 343 * 0; >>> #X text 28 321 restart; >>> #X connect 0 0 2 1; >>> #X connect 0 0 8 0; >>> #X connect 1 0 14 0; >>> #X connect 1 0 13 0; >>> #X connect 2 0 11 0; >>> #X connect 2 0 12 0; >>> #X connect 3 0 16 0; >>> #X connect 4 0 1 0; >>> #X connect 7 0 2 0; >>> #X connect 8 0 10 0; >>> #X connect 8 1 10 1; >>> #X connect 9 0 7 1; >>> #X connect 10 0 3 0; >>> #X connect 11 0 6 0; >>> #X connect 12 0 6 1; >>> #X connect 13 0 0 0; >>> #X connect 14 0 0 0; >>> #X connect 16 0 7 0; >>> >>> >>> *www.peimankhosravi.co.uk || RSS >>> Feed<http://peimankhosravi.co.uk/miscposts.rss> >>> || Concert News <http://spectralkimia.wordpress.com/>* >>> >>> >>> _______________________________________________ >>> [email protected] mailing list >>> UNSUBSCRIBE and account-management -> >>> http://lists.puredata.info/listinfo/pd-list >>> >>> >> >> >> -- >> William Brent >> www.williambrent.com >> >> “Great minds flock together” >> Conflations: conversational idiom for the 21st century >> >> www.conflations.com >> > >
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