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What is PCM Audio? [Format Difference. Expert Explaned]
https://samplerateconverter.com/educational/pcm-audio
PCM audio (Pulse-Code Modulation) ... In ideal audio system without non-linear distortions these aliases will inaudible. ... 16 bit 44.1 kHz is enough because we can't hear ultrasound, High resolution (above 16 bit 44100 …
Java - Convert 16-bit signed pcm audio data array to ...
https://stackoverflow.com/questions/37673482/java-convert-16-bit-signed-pcm-audio-data-array-to-double-array
All you have to do, is to apply a factor to normalize from a 16 Bit range, to a [-1.0…1.0]range. Well, it isn’t so easy, but for most practical purposes, deciding for one factor is sufficient: AudioFormat decodedFormat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 8000, 16, 1, 2, 8000, true);
Audio bit depth - Wikipedia
https://en.wikipedia.org/wiki/Audio_bit_depth
In digital audio using pulse-code modulation (PCM), bit depth is the number of bits of information in each sample, and it directly corresponds to the resolution of each sample. Examples of bit depth include Compact Disc Digital Audio, which uses 16 bits per sample, and DVD-Audio and Blu-ray Disc which can support up to 24 bits per sample.
javax.sound.sampled.AudioSystem java code examples | Tabnine
https://www.tabnine.com/code/java/classes/javax.sound.sampled.AudioSystem
private static void init () { try { // 44,100 samples per second, 16-bit audio, mono, signed PCM, little Endian AudioFormat format = new AudioFormat ( ( float) SAMPLE_RATE, BITS_PER_SAMPLE, …
ANDROID音频系统散记之二：resample_会一切-程序员秘密 - 程序 …
https://cxymm.net/article/ricefcc/40188367
devices : AudioSystem::DEVICE_IN_ALL, curDev : 0, curMode : 0, handle : 0, format : SND_PCM_FORMAT_S16_LE, // AudioSystem::PCM_16_BIT ; channels : 1, sampleRate : AudioRecord::DEFAULT_SAMPLE_RATE, // 录音采样率，固定为8khz ; latency : …
如何分析Android中的AudioPolicyService - 移动开发 - 亿速云
https://www.yisu.com/zixun/493541.html
if ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) || (format != AudioSystem::PCM_16_BIT) || (channels != AudioSystem::CHANNEL_OUT_STEREO)) { thread = new DirectOutputThread(this, output, ++mNextThreadId); } else
Pulse-code modulation - Wikipedia
https://en.wikipedia.org/wiki/Pulse-code_modulation
Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals.It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital …
Android Audio延迟(latency) - 代码先锋网
https://www.codeleading.com/article/32551305818/
AudioSystem::getOutputLatency函数中首先根据stream type获取对应的output，然后尝试获取output的描述. 若取得成功，则使用output描述中的延迟；否则，获取AudioFlinger，并使用AudioFlinger中的延迟。. 具体代码如下：. status_t AudioSystem::getOutputLatency ( uint32_t * latency, int streamType ...
converting PCM format to ULAW format with Sample rate 8000 ...
https://community.oracle.com/tech/developers/discussion/1273218/converting-pcm-format-to-ulaw-format-with-sample-rate-8000
Habitual cross poster -- see posting history. {color:#ff0000}{size:20px}CROSS POSTED{size}{color} [http://forums.sun.com/thread.jspa?threadID=5328172] Cross posting ...
Android Audio - TI porting gides | Mr_Kim - Blogger
https://mrkim80.blogspot.com/2013/12/android-audio-ti-porting-gides.html#!
{ module : 0, devices : OMAP3_OUT_SCO, curDev : 0, curMode : 0, handle : 0, format : SND_PCM_FORMAT_S16_LE, // AudioSystem::PCM_16_BIT channels : 2, sampleRate : DEFAULT_SAMPLE_RATE, // should ideally be 8000 latency : 200000, // Desired Delay in usec bufferSize : DEFAULT_SAMPLE_RATE / 5, // Desired Number of samples mmap :0, modPrivate : …
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