function [u,v]=pcmread(pcmfile,byte) file1='F:\work2\block\blocks.000.gif'; info=imfinfo(file1); if(strcmp(info.ColorType,'indexed')==1) [M1,map1]= imread (file1); C1=ind2rgb(M1,map1); else C1= imread (file1); end [m,n,k]=size(C1); %u=zeros(m,n); %v=zeros(m...
PCMData:用于存储PCM数据的类。 PCMReader+File file+AudioInputStream audioStream+int bufferSize+byte[] buffer+readPCM() : PCMDataPCMData+int sampleRate+int bitDepth+int channel+byte[] data 读取PCM文件流程 创建PCMReader对象,传入PCM文件路径。 使用AudioSystem获取AudioInputStream。 读取PCM数据到buffer...
下面是完整的Python代码,用于读取和处理PCM文件: importmatplotlib.pyplotasplt# 打开PCM文件file=open("audio.pcm","rb")# 读取PCM数据data=file.read(1000)# 读取1000个字节的数据# 处理PCM数据# 将数据转换为整数数组pcm_data=list(data)# 绘制波形图plt.plot(pcm_data)plt.show() 1. 2. 3. 4. 5. ...
snd_pcm_readi/snd_pcm_writei错误处理 混音器设置 打开混音器 Attach关联设备 注册 加载 查找元素 获取/更改元素 示例程序 回环测试例程 总结 ALSA插件 学习总结 MP157开发板支持音频,板上搭载了音频编解码芯片CS42L51,支持播放以及录音功能。 ALSA概述 ALSA是Advanced Linux Sound Architecture(高级的Linux声音...
A minimalist javascript audio player for PCM streaming audio - pcm-player/README.md at master · samirkumardas/pcm-player
The latency and energy to read or write to MLC PCM varies depending on the resistance state of the multi-level cell, such that one bit in a multi-bit cell can be accessed at lower latency and energy than another bit in the ... HB Yoon,N Muralimanohar,J Meza,... 被引量: 20发表:...
kal_uint32 read_size=0; kal_int32 audio_format; kal_int32 result; Media_Status aud_ret; Media_PCM_Stream_Param vpFormat; void *param = NULL; /*---*/ /* Code Body */ /*---*/ { vpFormat.isStereo = 0; vpFormat.bitPerSample = 16; vp...
Alsa驱动snd_soc_read的底层实现 2015-01-27 22:43 −在分析snd_soc_codec_driver的结构体时,发现有些芯片的驱动中定义了字段reg_word_size, reg_cache_size, reg_cache_default,但没有定义read/write,如wm8993: static struct snd_soc_codec_dri... ...
int read = audioRecord.read(data,0, minBufferSize); // 如果读取音频数据没有出现错误,就将数据写入到文件 if (AudioRecord.ERROR_INVALID_OPERATION != read) { try { os.write(data); }catch (IOException e) { e.printStackTrace(); }
Accordingly, the difference between the write address and the read address of the memory depends on the difference between the field period and the sampling period. By changing a master clock, which defines the sampling period controlled by the read address, in accordance with the address ...