alsa

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How to create artificial microphone input in Linux?

I\'m working on an audio recognition project. For testing, I\'d like to be able to have a program: load audio data from a file[详细]

2023-04-10 19:38 分类：问答
Get master sound volume in C in Linux

I\'m trying to retrieve (and probably later set) the master sound volume in Linux. I\'m using PulseAudio, but ideally it should work for ALSA too.[详细]

2023-04-10 13:51 分类：问答
Android NDK and ALSA

Hello I have a library that is compil开发者_Go百科ed under the Android NDK. This library for audio uses ALSA.[详细]

2023-04-07 16:11 分类：问答
Android, msm_pcm_out device and ALSA lib

Could anyone tell me if it is possi开发者_开发技巧ble to use alsa lib directly in native C code in Android?[详细]

2023-04-01 14:31 分类：问答
Playing the solfege notes with the ALSA API?

I\'m playin开发者_如何学编程g with the Alsa API and I wonder which parameters I should pass to the function snd_pcm_writei to simply play the solfège syllables/notes (A-G / do re mi fa sol la si do).[详细]

2023-04-01 03:45 分类：问答
Why does aplay work when pulseaudio is running and else not?

I have a ubuntu install with pulseaudio default installed. When pulseaudio is running this works: aplay -D hw:2,7 /usr/share/xbmc/sounds/Bursting\\ Bubbles/nav.wav[详细]

2023-03-30 06:35 分类：问答
Enabling sound in xine on certain alsa device (0.3 for HDMI)?

I\'d like xine v0.99.6 to output my sound through alsa device 0.3 (my HDMI output). This is, as always :), Ubuntu 11.04 on a small Atom box with the NVIDIA ION chipset, just in case anyone would like[详细]

2023-03-29 21:25 分类：问答
error -19,0 from using Mediaplayer?

E/MediaPlayer(20473): error (-19, 0) I/MyApp(20473): Decoding lala.mp3 I/StagefrightPlayer(68): setDataSource(\'mypath\')[详细]

2023-03-29 19:59 分类：问答
PyAudio working, but spits out error messages each time

I\'m using PyAudio to record input from the microphone. Since the audio is recording fine for me, should I try to simply suppress its error messages? Or would there be a way of resolving them?[详细]

2023-03-29 03:09 分类：问答
Attach sameplerate or dmix ALSA plugin to OSS device

I have an application in an embedded system that has a application which is OSS based.Unfortunately, this application is at a fixed sample rate (8K), but I need it to be at 48K.Furthermore, I can\'t c[详细]

2023-03-29 01:37 分类：问答