Re: [Csnd] Re: Csound on Embedded Linux (BeagleBone)
| Date | 2012-11-05 19:14 |
| From | john ffitch |
| Subject | Re: [Csnd] Re: Csound on Embedded Linux (BeagleBone) |
> This makes sense but I'm afraid I have no idea what to do about it. Any > suggestions? > > Trev I would start by locating the place in InOut/libsnd.c and adding lots of print statements to find the values. If I was on a serious computer I would use gdb with breakpoints. ==John ffitch |
| Date | 2012-11-09 04:18 |
| From | William Wignall |
| Subject | Re: [Csnd] Re: Csound on Embedded Linux (BeagleBone) |
| Hello John and Others, I don't think I am skilled enough to go in and edit C code. But here's more information that may shed more light on my situation. When I run a CSD: beaglebone:~$ csound hello.csd time resolution is 1000.000 ns Csound version 5.18.02 beta (float samples) Nov 4 2012 UnifiedCSD: hello.csd Creating options Creating orchestra Creating score Parsing successful! Elapsed time at end of orchestra compile: real: 0.034s, CPU: 0.030s Sorting score Elapsed time at end of score sort: real: 0.042s, CPU: 0.030s graphics not supported on this terminal, ascii substituted 0dBFS level = 32768.0 orch now loaded audio buffered in 256 sample-frame blocks sfinit: cannot open (null) inactive allocs returned to freespace end of score. overall amps: 0.0 overall samples out of range: 0 1 errors in performance Elapsed time at end of performance: real: 0.051s, CPU: 0.040s beaglebone:~$ the CSD is here: beaglebone:~$ ls bison csound flex hello.csd hello.wav libsndfile scons work the csound folder has the tar.gz, the extracted folder, and the materials to build it from sources. Csound will write a file, in this case, hello.wav. However this file is 0kb. I'm not familiar enough with Linux to know how to manipulate permissions, but I can check them: beaglebone:~$ ls -l total 28 drwxrwxrwx 3 trev trev 4096 Jun 18 2012 bison drwxrwxrwx 4 trev trev 4096 Nov 5 2012 csound drwxrwxrwx 3 trev trev 4096 Nov 4 2012 flex -rwxrwxrwx 1 trev trev 229 Jun 18 2012 hello.csd -rwxrwxrwx 1 trev trev 0 Jun 18 2012 hello.wav drwxrwxrwx 3 root root 4096 Jun 18 2012 libsndfile drwxrwxrwx 3 root root 4096 Nov 3 2012 scons drwxrwxrwx 4 root root 4096 Nov 3 2012 work beaglebone:~$ ALSA beaglebone:~$ aplay hello.wav ALSA lib conf.c:3700:(snd_config_update_r) Cannot access file /usr/share/alsa/alsa.conf ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM default aplay: main:682: audio open error: No such file or directory beaglebone:~$ aplay -l aplay: device_list:252: no soundcards found... beaglebone:~$ aplay --version aplay: version 1.0.25 by Jaroslav Kysela <perex@perex.cz> beaglebone:~$ Speaker Test Did this to check output. I don't need speakers because I can listen to the file by transferring it to my Mac. beaglebone:/home/trev# speaker-test speaker-test 1.0.25 Playback device is default Stream parameters are 48000Hz, S16_LE, 1 channels Using 16 octaves of pink noise ALSA lib confmisc.c:768:(parse_card) cannot find card '0' ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:4720:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM default Playback open error: -2,No such file or directory beaglebone:/home/trev# So the big thing that crosses my mind is the absence of a sound card. But is a sound card really required to just write to the disk? That's all I want to do for now. I've tried running Csound with the -o, -W, -A, -h, and -f flags and they still produce the same error. Is there anything additional concerning ALSA that I need (besides a sound card if I really do need that)? I hope this information helps. Trev
On Mon, Nov 5, 2012 at 2:14 PM, john ffitch <jpff@codemist.co.uk> wrote:
|