migrating to Ubuntu » sound

My Audacity settings

producer — Fri, 22 May 2009 01:04:56 +0000

On my Ubuntu 9.04 computer, Audacity functions with the following settings:

Audio I/O:
Playback Device: “ALSA: ALi M5455: ALi M5455 (hw:0,0)”
Recording Device: “ALSA: AK5370 : USB Audio (hw:1,0)”
Recording Channels: 1 (Mono)

Quality:
Sampling – Default Sample Rate: 22050 Hz

Interface:
Display range minimum: meters and ‘Waveform (dB)’: -60 dB (PCM range of 10 bit samples)
Default View Mode: Waveform (db)

Using Synaptic for sound optimization

producer — Mon, 04 May 2009 19:37:10 +0000

I just installed a few files with Synaptic following this sound guide. Interesting tip:

“With jaunty (not sure about intrepid), try this:

pulseaudio –kill

then

sudo alsa reload

It’s worked for me everytime so far, but it has to be done during a user session.”

Good tip, but I won’t try it because Audacity is able to record and Totem is able to play wav files at the moment. But how is it possible to play sound with simon?

Here is another interesting tip. Maybe I should take a closer look at Mint. By the way, this could be an option for the PC that is connected to the video beamer for playing DVDs.

Setup of the JACK Audio Connection Kit

producer — Wed, 12 Nov 2008 19:15:05 +0000

This is my momentary setup of the JACK Audio Connection Kit.

It differs a little bit from my previous setup. My setup isn’t perfect yet, but the numer of x-runs is most of the time in an acceptable manner.

Sound problems (nohz=off)

producer — Tue, 04 Nov 2008 03:46:47 +0000

Because I have sound problems under Ubuntu 8.10, I typed into the terminal “sudo nano /boot/grub/menu.lst”. Afterwards, I made a small change, and added “nohz=off”.

title Ubuntu 8.10, kernel 2.6.27-7-generic root (hd0,0) kernel /boot/vmlinuz-2.6.27-7-generic root=UUID=bae33ac1-4906-40bc-9924-50fecb63acb0 ro quiet splash nohz=off initrd /boot/initrd.img-2.6.27-7-generic quiet

I found this trick here. I hope that it will work out.

Additional remark: I just followed this tutorial. It is for Ubuntu 8.04. I am using Ubuntu 8.10. But I hope that it will help to solve my issues.

November 5, 2008: It didn’t work out. I am still having sound problems. I will try to make a separate installation of Ubuntu on a different hard drive. It was a mistake to upgrade to Ubuntu 8.10 even though some things are better now. It would be better to use two different installations: Ubuntu 8.04 on one hard drive, and a fresh installation of Ubuntu 8.10 on a different hard drive. Never touch a running system. It might get worse.

JACK Audio Connection Kit

producer — Mon, 03 Nov 2008 05:13:04 +0000

Sound under Linux is often a big problem. I have solved this problem partially by using the JACK Audio Connection Kit. Here is my configuration:

It looks pretty difficult

I had to try several times to get an acceptable solution. By the way, I am using Audacity in conjunction with JACK.