#N canvas 427 35 559 624 10;
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#X obj 0 0 cnv 15 552 40 empty \$0-pddp.cnv.header (adc~/dac~) 3 12
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#N canvas 568 408 402 224 META 0;
#X text 12 85 LIBRARY internal;
#X text 12 125 WEBSITE http://crca.ucsd.edu/~msp/;
#X text 12 45 LICENSE SIBSD;
#X text 12 105 AUTHOR Miller Puckette;
#X text 12 165 HELP_PATCH_AUTHORS Dave Sabine \, May 5 \, 2003 . Jonathan
Wilkes revised the patch to conform to the PDDP template for Pd version
0.42.;
#X text 12 25 KEYWORDS signal conversion;
#X text 12 5 NAME adc~ dac~;
#X text 12 145 RELEASE_DATE 1997;
#X text 12 65 DESCRIPTION audio input/output;
#X restore 501 597 pd META;
#X obj 0 508 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 8 12
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#N canvas 205 462 428 165 Related_objects 0;
#X obj 22 43 dac~;
#X obj 62 43 switch~;
#X obj 1 1 cnv 15 425 20 empty \$0-pddp.cnv.subheading empty 3 12 0
14 -204280 -1 0;
#X text 7 2 [adc~] Related Objects;
#X text 19 74 Externals;
#X obj 173 43 throw~;
#X obj 225 43 catch~;
#X obj 277 43 send~;
#X obj 321 43 receive~;
#X obj 19 94 pddp/helplink pdogg/oggcast~;
#X obj 19 114 pddp/helplink unauthorized/mp3cast~;
#X text 18 136 [shoutcast~] (What library is this in?);
#X obj 119 43 block~;
#X text 19 66;
#X text 115 43;
#X restore 102 597 pd Related_objects;
#X obj 469 10 adc~;
#X obj 5 597 pddp/pddplink all_about_help_patches.pd -text Usage Guide
;
#N canvas 44 65 428 471 Multi-channel_audio 0;
#X text 19 38 All sound cards are capable of at least two channels
of audio. Pd supports these two channels by default and uses your system's
generic audio drivers to communicate with your hardware. However \,
for faster input/output and for more than two channels of audio \,
PD incorporates the use of "PortAudio" which uses ASIO drivers to communicate
with your hardware. So \, to instruct Pd to use more than two channels
of audio \, your command line should read like below:;
#X text 80 145 c:/pd/bin/pd.exe -pa -inchannels 8 -outchannels 8;
#X text 19 174 The "-pa" switch means "PortAudio". This switch is new
as of Pd version 0.37 TEST 4 and replaces the old "-asio" switch.;
#X text 19 234 The "-inchannels" and "-outchannels" switches can be
summarized by using "-channels 8" because currently PortAudio requires
that the number of incoming and outgoing channels must be equal. This
may change in the Pd's future...;
#X text 19 314 To further optimize Pd's usage of your audio hardware
\, you can explore the following:;
#X text 29 355 - audiobuf;
#X text 30 373 - blocksize;
#X text 29 389 - audioindev;
#X text 29 407 - audiooutdev;
#X text 25 433 With the right hardware \, Pd can manage audio input
and output with lower than 10 milliseconds of latency.;
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#X text 7 2 [dac~] Multi-channel Audio;
#X restore 102 542 pd Multi-channel_audio;
#N canvas 84 179 428 341 sample_rate 0;
#X text 19 37 [adc~] and [dac~] always operate at the sample rate that
is specified in Pd's command line. By default \, the sample rate is
44100 hz. But Pd operates any sample rate supported by standard audio
hardware. Sample rates cannot be changed at run-time in Pd \, but must
be stated in the command line when Pd is instantiated. As well \, two
or more instances of Pd running simoultaneously can each be using different
sample rates! Having said that \, Pd can easily upsample or downsample
by using the [block~] object. Here are some example of the common sample
rates:;
#X text 19 191 c:/pd/bin/pd.exe -r 11025;
#X text 19 221 c:/pd/bin/pd.exe -r 22050;
#X text 19 281 c:/pd/bin/pd.exe -r 88200;
#X text 19 176 c:/pd/bin/pd.exe -r 8000;
#X text 19 206 c:/pd/bin/pd.exe -r 16000;
#X text 19 236 c:/pd/bin/pd.exe -r 32000;
#X text 19 251 c:/pd/bin/pd.exe -r 44100 CD Quality;
#X text 19 266 c:/pd/bin/pd.exe -r 48000 DAT Quality;
#X text 19 311 c:/pd/bin/pd.exe -r 192000 DVD-Audio Quality;
#X text 19 296 c:/pd/bin/pd.exe -r 96000 DVD-Video/Audio Quality;
#X obj 1 1 cnv 15 425 20 empty \$0-pddp.cnv.subheading empty 3 12 0
14 -204280 -1 0;
#X text 7 2 [dac~] Sample Rate;
#X restore 102 517 pd sample_rate;
#N canvas 59 444 428 117 defeating_audio_computation 0;
#X text 19 37 There may be cases when you do not want Pd to send or
receive audio signal with your soundcard. You can manually disable
the [dac~] and [adc~] objects separately using the "-nodac" and "-noadc"
switch \, or disable both using the "-nosound" switch.;
#X obj 1 1 cnv 15 425 20 empty \$0-pddp.cnv.subheading empty 3 12 0
14 -204280 -1 0;
#X text 7 2 [dac~] -nodac and -noadc;
#X restore 102 567 pd defeating_audio_computation;
#X obj 509 10 adc~;
#X text 12 23 audio input/output;
#X obj 101 107 pddp/pddplink adc~-help.pd;
#X text 98 56 [adc~] and [dac~] provide real-time audio input and output
for Pd \, respectively \, whether analog or digital. Click below for
the individual help patches:;
#X obj 101 127 pddp/pddplink dac~-help.pd;
