I was installed pci pinacle pctv 110i tv tuner card and configured it with tvtime. I worded my post to say that tvtime lead my queries to alsa and then onto pulseaudio. After trying to unsuccessfully install oss4, it seems ive broken alsa and have no sound. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Tvtime is the most prominent program for watching tv under linux because it provides the best picture quality, but its only for watching not for recording.
Live noise cancellation of microphone audio with jack. Alsa api sample programs with source code by aquiles yanez 2005 introduction to sound programming with alsa linux journal pg3 with example code 2004 note that some of these are old, and api may have changed in the meantime. Cadence and alsa cadence is primarily used to control and monitor the various linux sound systems, including alsa. So mixer control has be provided by a 2dimensional controller using the hwdepinterface. Assuming devdsp for output and devdsp2 for dvb input. Software interface alsadsp madi driver the linux kernel. Solving sound problems if you cannot hear sound from your tv source while watching with tvtime, try to adjust the mixer settings for your tv capture card e. Click the right mouse button, or hit tab when you run tvtime to bring up the menu. Alsa is more modular than the standard linux sound card drivers. Im totally unfamiliar with alsa, so making my own minimal example will take time. Qastools is a collection of desktop applications for the linux sound system alsa. Since dspmadi mixer has 8152 fader, it does not make sense to use the standard mixer controls, since this would break most of especially graphic alsa mixer guis.
Master playback switch, enum in mixer elements and what value should i set to those switchs. I tried all the combinations in alsamixer and kmix and none worked. If you want to have the functionality of the windows sound menu control you will need to install alsamixer from the software centre which as its description says. I couldnt record through my sound card using audacity, until i found gnomealsamixer. The install file in the alsa driver directory mentions some tricks to tell the driver which settings to use. With it, users can mix different audio tracks together, record from various sources, edit and the list goes on. There are a lot of possibilities using pulseaudio, but you just need to use the right tools. Starting alsamixer appication in a terminal and turning on the loopback by using the obscure key. Lau talks about the 18i6, saying it works, but linux cannot control the internal mixer.
Almost all features of tvtime can be configured through the menu system. The alsa driver api the linux kernel documentation. An alternative implementation of linux sound support with workaround for a52 digital surround pcm quequotion. But even with that, many of todays tv cards route audio internally. Until calling this, the alsa control interface is blocked from the external accesses. Alsa provides several useful applications, but i like to think of alsa as a tool to build higher level tools. A graphical patch bay for the alsa sequencer api and the jack audio api. Thus, you should call this function at the end of the initialization of the card. What do you see when you click the speaker in the bottomright and choose sound settings. Change devices to suit, or if using alsa or pulseaudio.
A patched version of the alsautils package to support transparent terminals. Other audigy related pages are audigymixer, audigymixercontrols. I have sound for all other applications amarok, smplayer, youtube, etc and the volume can. This is partly because i am running it in headless mode no graphical desktop and partly because sound on linux is fiendishly complicated. Gnomealsamixer download for linux deb, rpm download gnomealsamixer linux packages for alt linux, debian, mageia, openmandriva, ubuntu. Currently, you can not use the left and right arrow keys for volume management. Lm forum discussion about using the 2i4 under linux and the source of the test data above ardour forum says scarlett 18i6 works on linux with alsa 1. Also, check out the creative open source page for information. This guide was created as an overview of the linux operating system, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. Alsa is easier to install than other linux sound configuration architectures. Configuring linux sound services with alsa techrepublic.
Is it possible, using jack with alsa, to pipe live audio through audacitys noise cancellation filter. Run tvtimeconfigure help to get a list of command line arguments. Bitperfect mpd with alsa for a linux audio pc system. Bitperfect mpd with alsa for a linux audio pc system bitaccurate playback is the ultimate solution for a usbdac in combination with a highendaudio pc. Other sblive related pages are sblivecapture, sblive ir codes, sblivemixer, sblivemixercontrols, livedrive. Sound playback, recording, and mixing in debian is generally by provided by alsa and a sound server. Ubuntu multimedia alsamixer reports cannot open mixer. Alsa is the layer that supports soundcards, which is the linux catchall term for hardware audio interfaces, midi interfaces, and more. Volume bars are located below the basic information area. Watch tv on ubuntu with pci tv card tvtime no sound. On linux there are in general two different sound systems that provide drivers to your sound device, oss and the more recent alsa. This contains among other utilities the alsamixer and amixer utilities.
Expect the default alsa mixer configuration would enable the loopback. When the mixer item is switched off, off is displayed in its name. Here are our picks for the best audio tools for linux. The new systems, throwing the oss, and there is no dev mixer tvtime mixer hw. If you cannot hear sound from your tv source while watching with tvtime, try to adjust the mixer settings for your tv capture card e. You can use it to adjust the volume of different sound sources of your sound card. Popular distros such as ubuntu and arch linux run it by default, so theres a good chance youre using it right now to play music through your speakers or headphones. Use amixer contents to get the contents and controls of your alsa driver. Have you posted the output in dmesg when you modprobe your tv card driver. To hear the audio through alsa using tvtime or other programs that dont.
To install the alsa utils from debian based distros. Description of software in the debian linux distribution under maintenance of the debian multimedia team. Previous versions of tvtime defaulted to using the x server dpi values to infer the shape of the monitor. The oss emulation kernel modules sndpcmoss and sndmixeross do. This one is famous among the more experienced users, as this has been the goto tool to set your sound level on linux since a long time ago.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. Efficient support for all types of audio interfaces, from consumer sound cards to professional multichannel audio interfaces. You will need to access your mixer settings using amixer, the alsa. It works on the terminal with the command alsamixer which is a part of the alsautils package. Emu10k1 alsa opensrc org independent alsa and linux. Have you posted the output in dmesg when you modprobe your tv. If you need these commands it will depend on the application you use to. Tutorial recording computer playback on linux audacity. The intention of the software is to provide a complete audio editing suite suitable for. Though the alsa mixer is still available and probably in use, not something i know much about, i know things changes when pulseaudio came into view. While setting up a raspberry pi to play streamed music using upnp, i have had quite a bit of trouble understanding how to configure the sound on my raspberry pi. This behavior is new to fc12 previous versions did not need to enable loopback to get the tv sound working additional info. Alsa opensrc org independent alsa and linux audio support site alsa opensrc. Please suggest me some tutorial for mixer settings as well as alsa programming.
Inside the package you have the aplay and arecord tools to test it. If you need these commands it will depend on the application you use to play sound. Ive been looking for a simple c code example to set the master volume of the alsa mixer but could not find anything simple for this supposedly common operation. Alsa simplifies the process of configuring more than one sound card for your system.
As well, many features can be configured using the commandline tool tvtimeconfigure. How to use alsa utilities to manage linux audio from the. Cant open device dev mixer, mixer volume and mute unavailable. This driver provides up to 4 devices with up to 16 substreams.
Hello linux newbie recently installed solydk based on debian and ran into the pulseaudio alsa tvtime issue. It allowed me to unmute the line channel on my card, which the default linux sound app couldnt do. To hear the audio through alsa using tvtime or other programs that dont support it directly, run the following command after starting tvtime. Converting vhs to dvd under linux howto by dan macdonald, 24th august 2006 this document assumes you have. The topleft corner of alsamixer is the are to show some basic information. Useful for initial testing of an alsa installation. I enquired about pulseaudio because i have some other sound problems that are not connected to tvtime. Alsa service is not started on install, you need to start it and to add it on rc. Introduction to sound programming with alsa linux journal. I hope some day with new release of tvtime or some new program it can. The advanced linux sound architecture alsa provides linux computers with audio support. Ive uninstalled the oss4 packages and rebooted, and now alsamixer reports cannot open mixer.