usb audio codec

Since the last time the system was reinstalled, the driver of the sigmatel high definition audio codec device was not installed. It has been plagued for several months. To watch movies and listen to music, you must switch to Linux, fortunately, this problem was finally solved today and I wrote it to myself: If the driver was not installed in the past, I went online to find a method. The solutions provided

before recording the codec of your own learning audio, let's add a bit of hardware knowledgeA series of processors from the 8086 instruction set, known as the x86 processor, 8086 is the oldest 16-bit x86 processor, so the software is labeled I386, indicating that the software is 32-bit, based on the x86 processor , all 32-bit and 64-bit x86 processors can be run (unless the software is marked with a minimum

G.723.1 specifies a coded representation that can be used for compressing the speech or other audio signal component of multimedia services at a very low bit rate. in the design of this coder, the principal application considered was very low bit rate Visual Telephony as part of the overall H.324 family of standards. G.723.1 has two bit rates associated with it. these are 5.3 and 6.3 kbit/s. the higher bit rate has greater quality. the lower bit rate

Audio codec and real-combat article (1) PCM go to AAC (AAC encoding)Author: Liu · Poechant Blog: blog.csdn.net/poechant e-mail: zhongchao.ustc@gmail.com Date: April 7th, 2012 This uses FAAC to implement AAC encoding. 1 Download and install FAAC The installation process here is implemented on MAC and Linux, and windows can be similar to the reference. wget http://downloads.sourceforge.net/faac/faac-1.28.tar.

wave_format_vivo_g723112 wave_format_vivo_siren123 wave_format_digital_g723125 wave_format_sanyo_ld_adpcm130 wave_format_siprolab_aceplnet131 wave_format_siprolab_acelp4800132 wave_format_siprolab_acelp8v3133 wave_format_siprolab_g729134 wave_format_siprolab_g729a135 wave_format_siprolab_kelvin140 wave_format_g1_adpcm150 wave_format_qualcomm_purevoice151 wave_format_qualcomm_halfrate155 wave_format_tubgsm160 wave_format_msaudio1170 wave_format_unisys_nap_adpcm171 wave_format_unisys_nap_ulaw172

In general, the chassis we can buy now provides front-end USB and front-end audio as well as switch-key functions. And the need for us to connect including switch machine button, hard drive indicator, audio interface and USB cable. It is easy to install the audio and

I remember that more than two years ago, the rhythm decided to develop the USB audio product. Meeting with R D departmentUSBDuring the core solution, the engineer asked me whether you want to use the solution quickly or a complete solution, and then explained the One-afternoon USB audio solution to me! Finally, I will

I. Background:The kernel version of ARM Linux is 3.13.0Two. Preparatory workAdd ALSA drivers to the kernel, that is, when compiling the kernel, add the following options:You can then recompile the kernel toThree. Cross-compiling Alsa-lib and Alsa-utils (Alsa-utils is a series of audio device control tools, and Alsa-lib is a library of alsa-utils dependencies, so the Alsa-lib is compiled first)3.1 Cross-compiling alsa-lib3.2 Cross-compiling alsa-utilsF