发现使用了low-latency的case,发现period_size是512,发现问题大概10个10ms 会有一个20ms的等待 原理是不对齐: 一个中断消耗512帧,所以一个中断需要512/48000=10.666ms , 硬件按照整数倍数来处理,15个中断会等待20ms来补时间差 把period_size改为480后发现减少很多几乎可以忽略...
period_size 例句 释义: 全部 更多例句筛选 1. Without changing the period size, the frequency bandgap is varied when the length of the stretching strip is adjusted. 在不改变周期的情况下,通过调整伸长窄带长度可以改变带隙特性频率。 www.ceps.com.tw©...
unsigned int period_size = 1024; // 设置周期大小为1024个样本点 int dir; // 设置 PCM 设备的周期大小 err = snd_pcm_hw_params_set_period_size_near(pcm_handle, pcm_params, &period_size, &dir); // 检查设置周期大小是否成功 if (err < 0) { fprintf(stderr, "Can't set period size: ...
5. data rate,这个就是 采样率 * 每帧字节数 6. period,每次处理 AD,DA 转换的间隔是周期。 内核可以缓冲很多周期的数据,每个周期都会生成一个中断和一个副本,用户层可以间隔很长时间再处理一次,一次可以处理多个周期的数据。 7. period size 这个数值指的是一个周期包含多少帧。 如果设置为 32,那么用户每次...
同周期的元素电子层数是相同的,而最外层的电子是增多的,因此原子对电子的吸引力是逐渐变大的.所以size就小了.同周期最外层电子数目决定了元素的大小.同主族的电子层数决定了元素的大小.吸引力越大,电子靠着核不是越近吗? 电子靠着核越近,不是半径就减小了吗? 半径减小了,不是size就小了吗?把...
[Alsa-devel] problem with "snd_pcm_hw_params_set_period_size_near" James Courtier-Dutton Mon, 29 Sep 2003 14:53:55 -0700 if the buffer size has already been set to 16384, and the period_size is trying to be set to 8196, why do I get the following results: -period_size=8196...
I tried to replace it with bluealsa-aplay but the buffer is bigger and I feel latency between video and sound. Would it be possible to add option like --buffer-time / --buffer-size / --period-time / --period-size to bluealsa-aplay ?
> Subject: Re: [Alsa-devel] buffer_size and period_size > > > >Paul, > > So with -p 64 -n 2 settings, what number of bytes of audio data is > >transferred across the PCI bus between each interrupt? > > the period size is always (as with almost all ALSA metrics) in units ...
1] Manually Change each Period sign size To manually change the period size in Microsoft Word, follow these steps: Individually select the period sign whose sign you want to increase. Now, increase its size to what you want. 2] Using the Increase Font Size Option You can also use the cha...
2. To change the font size of all periods, go to theHometab, and click onReplace. Alternatively, you can also press the keyboard shortcutControl + H. 3. In the first line, type in the character that you are searching for. In our case, this would be the period. In the second line...