Re: [Csnd] Is audio hw for audio output a must, a compulsory requirement, in order to use csound?
| Date | 2019-09-09 19:33 |
| From | Marco Ippolito |
| Subject | Re: [Csnd] Is audio hw for audio output a must, a compulsory requirement, in order to use csound? |
Thanks Forrest for these indications.
A) In the PC with Ubuntu 18.04.02 Server Edition it seems no soundcards are found:
(base) marco@pc:~$ aplay -l
aplay: device_list:270: no soundcards found...
(base) marco@pc:~$ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
Does it mean that I cannot use CSound in this PC with Ubuntu 18.04.02 Server Edition?
In the laptop with Ubuntu 18.04.02 Desktop there are three soundcards:
B)
(base) marco@marco-U36SG:~/csoundCppAPIexamples$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC269VB Digital [ALC269VB Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
(base) marco@marco-U36SG:~/csoundCppAPIexamples$ aplay -L
default
Playback/recording through the PulseAudio sound server
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
sysdefault:CARD=PCH
HDA Intel PCH, ALC269VB Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
Front speakers
surround21:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Digital
IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=PCH,DEV=0
HDA Intel PCH, HDMI 0
HDMI Audio Output
dmix:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
Direct sample mixing device
dmix:CARD=PCH,DEV=1
HDA Intel PCH, ALC269VB Digital
Direct sample mixing device
dmix:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
Direct sample snooping device
dsnoop:CARD=PCH,DEV=1
HDA Intel PCH, ALC269VB Digital
Direct sample snooping device
dsnoop:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Direct sample snooping device
hw:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
Direct hardware device without any conversions
hw:CARD=PCH,DEV=1
HDA Intel PCH, ALC269VB Digital
Direct hardware device without any conversions
hw:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
HDA Intel PCH, ALC269VB Analog
Hardware device with all software conversions
plughw:CARD=PCH,DEV=1
HDA Intel PCH, ALC269VB Digital
Hardware device with all software conversions
plughw:CARD=PCH,DEV=3
HDA Intel PCH, HDMI 0
Hardware device with all software conversions
I tried with CsoundQt Configuration to change the input device (-i) from default (adc) to adc1 and the output device (-o) from default (dac) to dac1 , with RT Audio Module unchanged to portaudio (callback), but it seems that it still looks for hw 0
Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here |
| Date | 2019-09-09 20:28 |
| From | Anders Genell |
| Subject | Re: [Csnd] Is audio hw for audio output a must, a compulsory requirement, in order to use csound? |
Regarding alsa not finding a sound card on the machine with a server distro: It might be that you as a user is not a member of the group called 'audio' which is generally used to interact with sound stuff. It might even be that the group does not exist. If you issue the command 'groups' without arguments, the groups you are a member of will be listed. Look for 'audio' and if it is not there update your user settings accordingly.(typically using 'usermod'). Regards, Anders On Mon, Sep 9, 2019 at 8:33 PM Marco Ippolito <ippolito.marco@gmail.com> wrote: Thanks Forrest for these indications. |