Posts with the tag Audio

Installing Pulseaudio on Mac OS X 10.7 Lion via Homebrew

The following steps didn't work for me (I could compile pulseaudio but it crashed when loading Apple's Coreaudio support or it wouldn't contain CoreAudio support). So I decided to use the Solution via Soundflower and esound described below the pulseaudio section.

As long as this pull request is not part...

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Apply a Lowpass Filter to an mp3 Audio File

A lowpass filter can be applied using the command line tool sox. It tool can be installed like this on Ubuntu:

sudo aptitude install pacpl sox

Convert the audiofile to wave first (using Perl Audio Converter as sox has no mp3 support compiled in on Ubuntu systems):

pacpl --to...

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Create an Image of a Copy Protected Audio CD Using readom

http://linux.die.net/man/1/readom
http://www.linuxquestions.org/questions/linux-newbie-8/how-do-i-dd-copy-protected-disc-784767/

use the option -clone!

readom dev=/dev/sr0 -clone f=audio-loops.iso
...

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Get sound working again after Suspending on a HP nx8220 notebook

http://www.emmolution.org/?p=144

sudo alsa force-reload
...

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Composing Music

NoteEdit

http://noteedit.berlios.de/
http://www.linux-user.de/ausgabe/2002/04/030-noteedit/noteedit.html

sudo apt-get install noteedit

LMMS

http://lmms.sourceforge.net/home.php
http://lmms.sourceforge.net/wiki/index.php?title=Main_Page

commercial Windows software

Sibelius

http://appdb.winehq.org/objectManager.php?sClass=application&iId=1124

FL Studio

http://appdb.winehq.org/objectManager.php?sClass=application&iId=178

good supplement: halion player with complete halion 3 sound database

...

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Text to Speech

festival

manual: http://www.cstr.ed.ac.uk/projects/festival/manual/
excellent

echo "Hello world!" | festival --tts

espeak

better than recite but not excellent

recite

resources

http://wiki.ubuntuusers.de/Baustelle/Text-To-Speech

...

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Problems on HP nx8220 with Audio Playback (I Assume its pulseaudio)

To start new with pulseaudio:

pulseaudio --kill
rm -rf ~/.pulse ~/.pulse-cookie
pulseaudio --start

Then check access to the soundcard:

sudo lsof | grep /dev/snd

which returns:

pulseaudi 5173     philipp   20u      CHR     116,10    ...

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Convert ape audio files to mp3 on the terminal

http://ubuntuforums.org/showthread.php?p=6879960#post6879960

Requirements: Having the executables mac, lame and id3v2 installed.
I haven't done it myself yet, but this seems to be a nice and quick way to do a conversion and set the ID3 tags in the newly created MP3:

#!/bin/bash
echo "Artist name?"
a= <span...

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Get Monkey's audio (.ape file format) binaries on Ubuntu amd64 Architecture

http://ubuntu-ky.ubuntuforums.org/showthread.php?p=7990721#7

sudo -i
echo "deb http://ppa.launchpad.net/g-christ/ppa/ubuntu jaunty main"  >> /etc/apt/sources.list
exit
gpg --recv-keys FB34808D7ED779F6
gpg --export --armor FB34808D7ED779F6 | sudo apt-key add -
sudo apt-get update
sudo apt-get install mac
...

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M-Audio Transit USB

Hardware

I took a couple of images of the hardware and put them on PicasaWeb: https://picasaweb.google.com/111743287730172647732/MAudioTransitUSB.

The ICs used are:

  • U1 TI TAS1020A (8052 w/USB audio streaming) Stereo USB Audio Interface
  • U2 uC 24LC64 (serial EEPROM) 64 Kbit Electrically Erasable PROM
  • U3 AKM AK4584VQ (audio) 24Bit 96kHz Audio CODEC with DIT/DIR
  • U4 1117M3...

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