Archive-name: audio-fmts/diff Submitted-by: Guido van Rossum Version: 3.02 Last-modified: 11-May-1993 *** 1.1 1993/03/22 11:30:53 --- audio.part1 1993/05/11 13:03:48 *************** *** 60,62 **** The entire FAQ is also available by anonymous ftp from ftp.cwi.nl ! [192.16.184.180], directory pub/audio, files AudioFormats{part1,part2}. --- 60,62 ---- The entire FAQ is also available by anonymous ftp from ftp.cwi.nl ! [192.16.184.180], directory pub/audio, files AudioFormats.{part1,part2}. *************** *** 315,322 **** All these machines can play back sound without additional hardware, ! although the needed software is not always standard; only the Sun, ! NeXT and SGI come with standard sampling hardware (the NeXT only ! samples U-LAW at 8000 samples/sec from the built-in microphone port; ! you need a separate board for other rates). (Don't send me details on optional or 3rd party hardware, there is too much and it is really ! beyond the scope of this FAQ.) --- 315,322 ---- All these machines can play back sound without additional hardware, ! although the needed software is not always standard; also, some ! machines need external hardware to record sound (or to record at ! higher quality, like the NeXT, whose built-in sampling hardware only ! does 8000 samples/sec in U-LAW). Please don't send me details on optional or 3rd party hardware, there is too much and it is really ! beyond the scope of this FAQ. *************** *** 325,327 **** In fact, DECsound is given away free with Motif 1.1 and supports the ! VAXstation, Sun SPARCstation, DECvoice, and XMedia audio devices. Sun sound files work without change. The Alpha systems (DEC 3000 Model --- 325,327 ---- In fact, DECsound is given away free with Motif 1.1 and supports the ! VAXstation, Sun SPARCstation, DECvoice, and DECaudio devices. Sun sound files work without change. The Alpha systems (DEC 3000 Model *************** *** 470,471 **** --- 470,480 ---- + The "IRCAM" sound file system has now been superseded by the so-called + "BICSF" (for Berkeley/IRCAM/CARL Sound File system) software release. + More recently, there has been an effort at Princeton (Prof. Paul + Lansky) and Stanford (Stephen Travis Pope) to standardize several + extensions to BICSF. A description of BICSF and the + Princeton/Stanford extensions is available by anonymous ftp from + ftp.cwi.nl [192.16.184.180], in directory /pub/audio/BICSF-info. This + file contains further ftp pointers to software. + Finally, a somewhat different but popular format are "MOD" files, *************** *** 736,739 **** A program "playulaw" was posted as part of the "radio 2.0" release ! that I posted to several source groups recently; it plays raw U-LAW ! files on the Indigo, Indigo2 or Personal IRIS audio hardware. --- 745,748 ---- A program "playulaw" was posted as part of the "radio 2.0" release ! that I posted to several source groups; it plays raw U-LAW files on ! the Indigo, Indigo2 or Personal IRIS audio hardware. *************** *** 749,752 **** ! Vaxstation 4000 ! --------------- --- 758,777 ---- ! Others ! ------ ! ! Most other UNIX boxes don't have audio hardware and thus can't play ! audio data. This is actually rapidly changing and most new hardware ! that hits the market has some form of audio support. Unfortunately ! there is nothing like X11 that provides a portable interface. Perhaps ! DEC CRL's AudioFile system can fill the gap; it is network-transparent ! and supports at least Digital RISC systems running Ultrix, Digital ! Alpha AXP systems running OSF/1, Sun Microsystems SPARCstations ! running SunOS, and SGI Indigos. The source kit is located at ftp site ! crl.dec.com (Internet 192.58.206.2) in /pub/DEC/AF. ! ! ! Playing audio files on the Vaxstation 4000 (VMS) ! ------------------------------------------------ ! ! 1) Without DECsound *************** *** 764,765 **** --- 789,804 ---- + 2) With DECsound (bundled with motif) + + Just start DECsound by selecting it from the session manager in the + applications menu. (Not there use "@vue$library:sound$vue_startup"). + Make sure settings; device type (vaxstation 4000) and play settings + (headphone jack) are selected. To play files from the DCL prompt + (handy if you want to play sounds on a remote workstation) set a + symbol up as follows; + PLAY == "$DECSOUND -VOLUME 50 -PLAY" + usage; + DCL> play sound.au + + 3) Audio port + The external audio port comes with a telephone-jack-like port. For *************** *** 768,784 **** (that came with the VaxStation), and plug in a small set of stereo ! speakers (the kind you'd plug into a WALKMAN, for example), for more ! volume. ! ! Others ! ------ ! ! Most other UNIX boxes don't have audio hardware and thus can't play ! audio data. This is actually rapidly changing and most new hardware ! that hits the market has some form of audio support. Unfortunately ! there is nothing like X11 that provides a portable interface. Perhaps ! DEC CRL's AudioFile system can fill the gap; it is network-transparent ! and supports at least Digital RISC systems running Ultrix, Digital ! Alpha AXP systems running OSF/1, and Sun Microsystems SPARCstations ! running SunOS. The source kit is located at ftp site crl.dec.com ! (Internet 192.58.206.2) in /pub/DEC/AF. --- 807,811 ---- (that came with the VaxStation), and plug in a small set of stereo ! speakers or headphones (the kind you'd plug into a WALKMAN, for ! example), for more volume. The adapter also has a microphone plug so ! that you can record sounds if DECsound is installed. *************** *** 899,903 **** sound formats, albeit mostly on micros, is "The Sound Site ! Newsletter". Issue 12 appeared in March 1993. Issues can be ftp'ed ! from saffron.inset.com, directory directory pub/rogue/newsletters, or ! from ccb.ucsf.edu, Pub/Sound_list/Sound.Newsletters. --- 926,932 ---- sound formats, albeit mostly on micros, is "The Sound Site ! Newsletter". Issue 12 appeared in March 1993. This used to be ! available by anonymouse ftp from saffron, but I have been informed ! that saffron is no longer providing this service. If you know of a ! different site carrying recent issues of the Sound Site newsletter, ! please let me know!) *** 1.1 1993/03/22 11:30:53 --- audio.part2 1993/05/11 13:03:54 *************** *** 17,19 **** ! Table of contents: --- 17,20 ---- ! Table of contents ! ----------------- *************** *** 42,44 **** or bitftp@pucc.princeton.edu, and the servers will send you ! instructions on how to make requests --- 43,47 ---- or bitftp@pucc.princeton.edu, and the servers will send you ! instructions on how to make requests. (The bitftp service is no ! longer available through UUCP gateways due to complaints about ! overuse :-( ) *************** *** 804,807 **** 10K - 60K). An older MOD format only allowed for up to 15 samples in ! a MOD file; you don't see many of these anymore. [The standard ! sampling rate is 10k, see below. --GvR] --- 807,810 ---- 10K - 60K). An older MOD format only allowed for up to 15 samples in ! a MOD file; you don't see many of these anymore. There is no standard ! sampling rate for these samples. [But see below.] *************** *** 982,1001 **** ! The MOD sampling rate ! --------------------- ! ! From dgc3@midway.uchicago.edu: ! ! The standard rate is 10k exactly. Instrument files should be 10k, ! signed, 8-bit raw audio. A lot of people ask how to create MOD ! samples on their own machine; the answer is: ! ! [%>] sox mysound.foo -r10000 -sb sample.sam ! ! I quite doubt that there are any deviations here, since the sample ! data is incorporated into the MOD file and cannot store its own format ! header. The Amiga program MED uses a custom format for its MODs ! (often called MEDs because of name similarity), and does allow any ! 8SVX sample of any sampling rate to be used. ! ! David --- 985,988 ---- ! PS: A file with even *much* more info on MOD files, compiled by Lars ! Hamre, is available from ftp.cwi.nl:/pub/audio/MOD-info. Enjoy!