Linux-audio-user April 2023

linux-audio-user@lists.linuxaudio.org

30 participants
20 discussions

by Bill Purvis

Hi, I'm struggling with my jack setup again. I am running Devuan Chimaera and the MB has a builtin sound chip (ALC887) which works using just ALSA. I had an Audigy sound card, and Jack worked OK with that. Longer term, I'll by using a UDAC8 USB sound module, but it's not here at present, and I expected to be able to simply switch the Jack output device from the Audigy to the ALC877. I can play a test file through ALSA (aplay test1.wav) which is OK, though a bit low volume, but when I reconfigure jack to use it, I don;t get any system output on QJackCtl, and jack-play gives no sound, not surprising if there's no port to connect to. Last resort is to put the Audigy card back in for now. Bill -- +----------------------------------------+ | Bill Purvis | | email:bill@billp.org | +----------------------------------------+

1 month

Help !

by Fons Adriaensen

Hello all, Since four days now, the melody I try to reproduce below is haunting my brain. Don't know how i picked it up. It's a popular classical piece which I have heard many times, from the romantic period and as I remember it, for string orchestra. But I can't find out what it is. Tried some of the 'find a melody' sites, no succes. 6/8 (or maybe 3/4) - = continuation of previous note by 1/8 | A-- G#-- | A---- B | C-- B-- | Bb----- | | Bb-- A-- | G----- | F-- G Bb A | Bb----- | Can anyone identify this ?? Many thanks ! -- FA

1 month

Re: Help!

by Bill White

> > So the idea is you whistle a tune, write an asterix for the first note > and the u, d or r for each consecutive note depending on weather it the > melody moves up, down or repeats tje previous note. > This sounds a bit like humdrum, a short of MusicXML alternative used by musicologists to do statistical analysis of compositions. >

1 month

Connect a MiniDSP U-DAC8 via jack

by Bill Purvis

Having sorted out my previous problem with Jack, I've got round to trying to sort out the multi-channel outputs via a MiniDSP UDAC-8. This is an 8-channel USB output device. I plugged it in and it shows up with 'aplay -': --------------------------------- **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC887-VD Analog [ALC887-VD Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 1: ALC887-VD Digital [ALC887-VD 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 card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: UDAC8 [U-DAC8], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 ------------------------------ Going into QjackCtl and changing the output device to hw:UDAC8 and it seems to work - jack restarts and the Graph window now shows system with 8 playback channels. I then tried using jack-play to play a short test .wav file which works fine on the ALC877 but fails with the UDAC-8: ------------------------------------------ Cannot read socket fd = 8 err = Success Cannot open jack-play-3712 client CheckRes error JackSocketClientChannel read fail JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock jack_client_open() failed: jack-play-3712 ------------------------------------------- I then tried using just alsa aplay -D plughw:UDAC8 which works, while aplay -D hw:UDAC8 fails with: ------------------------------ Playing WAVE 'test1.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo aplay: set_params:1349: Channels count non available ------------------------------ qjackctl only allows devices with hw:* and not plughw:* so that could be something, though I don't understand the internals of jack and alsa. Anyone able to set me right and get this to work will win my undying gratitude! Bill -- +----------------------------------------+ | Bill Purvis | | email: bill(a)billp.org | +----------------------------------------+

1 month

Re: Help !

by Kjetil Matheussen

> Hello all, > > Since four days now, the melody I try to reproduce below is > haunting my brain. Don't know how i picked it up. > > It's a popular classical piece which I have heard many times, > from the romantic period and as I remember it, for string > orchestra. > > But I can't find out what it is. Tried some of the 'find a > melody' sites, no succes. > > 6/8 (or maybe 3/4) > - = continuation of previous note by 1/8 > > | A-- G#-- | A---- B | C-- B-- | Bb----- | > | Bb-- A-- | G----- | F-- G Bb A | Bb----- | > > Can anyone identify this ?? > Doesn't ring a bell here, figuratively speaking. But maybe you can find it via http://www.themefinder.org/ ? I couldn't find it with themefinder though, but I'm not sure if I used it correctly.

1 month, 1 week

Re: help!

by bil＠ccrma.Stanford.EDU

It's not an exact match, but that reminds me of Schumann's "du Ring an Meinem Finger".

1 month, 1 week

Re: Elementary help needed with qTractor

by David Sumbler

Thank you both for your suggestions. Having experimented further, I find that, as I expected, the earpieces are completely inaudible when they are not in my ear (they are just the little ear-bud type of thing). The default connections shown bu aJackCtl are: System(capture) to qTractor and PulseAudio JACK Source qTractor and PulseAudio JACK Sink to System(playback) This seems about right, to me, I experimented with removing the connections to/from PulseAudio, but this doesn't make any difference to the problem I have been getting. I also experimented with muting various things in Pavu, without any success. So either I am doing something very basic completely wrongly (quite likely!), or perhaps there is some sort of crossover going on in my sound card between input and output. I did attempt to repeat my experimental recording on my desktop computer, but couldn't figure out how to get the input from my webcam's microphone into qTractor. When I start Jack, the System(capture) node doesn't appear in the connections graph at all. David

1 month, 1 week

Elementary help needed with qTractor

by David Sumbler

Several years ago I managed to produce some multi-track midi files using qTractor. Now I want to do something fairly simple using audio tracks. Just to get myself back into using qTractor after a very long break, and to find out how to do what I want, I decided to try something very simple to start with. I want to record a guide track using my voice, and then record 3 other voice tracks (separately), listening to the guide track through an earpiece. Then I shall delete the guide track and experiment with altering the pan settings on two of the other 3 tracks to see if I can get a good stereo effect. I'm using an HP laptop and its internal microphone, with an earpiece plugged into the computer's headphone socket; no sound comes from the computer's speakers, of course. Recording the guide track is no problem. To record the second track, I set it up as an unmonitored audio track and set the guide track to solo. I then record the new track whilst listening to the guide track through the earpiece. But after recording the second track, even if I delete the guide track, I can still faintly hear what was on the guide track - in other words, the new track has recorded the contents of the guide track at the same time as the new input from the microphone. I have tried this several times, and I can't figure out what I'm doing wrong - probably because I'm a musician and not a sound engineer. If anyone has the patience to try to steer me though this, I shall be extremely grateful. David

1 month, 2 weeks

Re: [LAD] I'm being stalked, please be weary

by Jeanette C.

Apr 17 2023, Bearcat M. Şándor has written: > I haven't been paying attention lately, but this one caught mine. ... Thanks, this is very sweet. yes, I am safe. It didn't last long. I was lucky! Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c You should take me as I am 'Cause I can promise you Baby, what you see is what you get <3 (Britney Spears)

1 month, 2 weeks

OT: tips for mail reader and / or address book management

by Alf Haakon Pietruszka Lund

Hello list! Off topic, but maybe some of you guys got any advice? I've mainly been using Thunderbird and Evolution as my mail readers, because they have powerful search capabilities and good folder and account management. But I find both seriously lacking in contact mangement. Editing contacts require loads of clicks and mouse navigation to enter info to those fields I use most often: Name, email (might be multiple), phone (might be multiple), Street Address, Organization / Company, Birthday, Notes. I'd like a spreadsheet approach instead: a simple list view of the preferred columns, right click to get a "Mail to" context and double click in a field to edit. Or something similar. And keyboard navigation, please. I want sync across devices (that is Android phone, PC and occasional webmail) but I don't want Google, so I'm using a CardDAV address book. Thunderbird doesn't even let me use cardDAV as default address book but saves all contacts to "Personal address book". Evolution opens contacts in a tabbed window without CTRL-TAB navigation. Etc. So. Does anyone here have pointers to mail readers with powerful search, good folder and account management AND good contact management? I'll happily accept personal mail to keep the OT clutter minimal. Thankful for any input.

1 month, 2 weeks

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Linux-audio-user April 2023