** Description changed:
Hy maintainer
Getting through the tutorial of the program (cecilia), I get an error when
opening ANY soundfile, even and especially the AIFF and WAV files that should
be supported as sound input files by cecilia.
what was expected ? the file to open, be displayed and be playabe in the
general window of cecilia.
what happens instead? the Messagebox says: ERROR Audio file is not valid. and
then no way to open any file.
see DETAILS section to reproduce the bug
versions:
package cecilia Version: 2.0.5-2.2ubuntu1
package csound : Version: 1:5.17.6~dfsg-1
$csound --version says :
Csound version 5.17 (double samples) May 30 2012
system Description: Ubuntu 12.04.1 LTS Release: 12.04
FIXING tips :
this migth be because of csound is in version 5...., as the cecilia doc says
csound (>= 4.23) needed.
maybe csound version 5.17 has different ouptut messages tha csound 4.23
the error message comes from function : getSoundInfo in file : lib/files.tcl
it is the result of test on the variable returned by function :
getSoundFileInfo in file lib/unix/helpers.tcl:
proc getSoundFileInfo {path}
but this procedure depends on shell execution, that returns info on the file :
the code (CODEA)
catch {exec $prefs(help:CSND) -U sndinfo $path} stuff
basically the comand line is like $csound -U sndinfo
/usr/share/cecilia/files/examples/beat.aiff
which returns : ----------
PortAudio real-time audio module for Csound
0dBFS level = 32768.0
Csound version 5.17 (double samples) May 30 2012
libsndfile-1.0.25
util sndinfo:
/usr/share/cecilia/files/examples/beat.aiff:
srate 44100, stereo, 16 bit AIFF, 2.841 seconds
(125307 sample frames)
--------
with such a string registered in the variable $stuff in getSoundFileInfo, the
test TESTA :
if {[lsearch $stuff "AIFF"] == -1 && [lsearch $stuff "WAVE"] == -1 } {
(...) return 0}
is true because $stuff even converted as a list contains elements like
"AIFF,"BUT NOT "AIFF"
so :
*** solution might be to replace the CODEA code previously quoted with
something like CODEB
set stuff [lrange [exec file $path] 1 end]
(taken from lib/select.tcl file " set typer [lrange [exec file
$fileselect(dir)/$path] 1 end] ")
that code only returns :
IFF data, AIFF audio
or
RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, stereo 44100 Hz
but doing this replacement, we might introduce bugs in the function
getSoundFileInfo after the test TESTA ............
especially there :
set type [lindex $stuff [expr [lsearch $stuff "soundfile,"] - 1]]
if {$type == ""} {
set type [lindex $stuff [expr [lsearch $stuff "soundfile"] - 1]]
}
set dur [lindex $stuff [expr [lsearch $stuff "seconds"] - 1]]
set sr [string trim [lindex $stuff [expr [lsearch $stuff "srate"] + 1]]
", "]
set tr [string trim [lindex $stuff [expr [lsearch $stuff ${sr},] + 1]]
", "]
set siz [lindex $stuff [expr [lsearch $stuff ${tr},] + 1]]
return "$dur $sr [string tolower $type] $tr $siz"
}
********
so a better solution would be to modify only lib/unix/helpers.tcl and :
a) to leave CODEA declaration intact
b) to introduce a new variable $stuff2
set stuff2 [lrange [exec file $path] 1 end]
c) to change the TESTA instruction for the following:
if {[lsearch $stuff2 "AIFF"] == -1 && [lsearch $stuff2 "WAVE"] == -1 } {
(...) }
d) to change the assignment of the variable $type as such :
set type [lindex $stuff2 [expr [lsearch $stuff2 "audio"] - 1]]
+ if {$type == ""} {
+ set type [lindex $stuff2 [expr [lsearch $stuff2 "audio,"] - 1]]
+ }
e) to leave the rest of the code intact
********
ouf,
we went through.
I will try to fix the bug and submit a patch myself.
cheers.
Seb.
DETAILS :
reproduce the bug : follow tutorial
http://cecilia.sourceforge.net/man/tut1.html
(also included in the package :
/usr/share/cecilia/files/doc/html/tut1.html )
section : Opening a module and choosing a sound.
choose a module with the New... cascade under the File menu. Choose the
Transposer module in the Pitch class since it uses most of the features
of CECILIA and is conceptually straightforward: it transposes a
soundfile in pitch with a few bells and whistles thrown in.
Two things happen:
1- The Grapher window has opened up showing some colored lines (some of
the lines are hidden under others), a couple of sliders at the bottom,
some toggle buttons and some coloured buttons etc.
2- The Main window has expanded showing a largish button, a couple of
small icons and a small slider.
Bring up the Main window and click on the toLoad button. This brings up the
fileselector.
When you choose a file, information about it is shown. If its a soundfile,
even more information is shown. If its a sound file, you can play it by hitting
the speaker icon and you can edit it with the scissors.
BUG : the SPEAKER icon never turns active, even when soundfile is selected.
then when a soundfile (AIFF or WAV) is selected,
press the OK button of the fileselector :
BUG : a message box showing "ERROR Audio file is not valid" appears.
then no sound file is ever opened.
criticity : this is serious bug because no input audio file can be
played.
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https://bugs.launchpad.net/bugs/1067126
Title:
cecilia makes an error when opening WAV or AIFF file as soundfile
input. "ERROR Audio file is not valid"
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