signed pcm

The previous article recorded the RGB/YUV video pixel data processing method, this article continues the previous article the content, records the PCM audio sampling data processing method. The location of the audio sample data in the video player's

The operation of the audio device is primarily to initialize the audio device and send PCM (Pulse Code modulation) data to the audio device. For convenience, this article uses the libraries and drivers provided by ALSA (Advanced Linux Sound

This document records the Audio Playback Technology of SDL. The version used here is sdl2. In fact, SDL does not provide the video/audio playback function. It only encapsulates the underlying API for video/audio playback. On Windows, SDL

Today, we encountered a bug. When audioflinger returns a negative number from audiostreaminalsa: Read (), but when it should return a negative number, returns a super large positive number. After a long query, the system finally realized that the

Document directory Notes: General discussion of riff files: References: The wave file format is a subset of Microsoft's Riff specification for the storage of multimedia files. A riff file starts out with a file header followed by a sequence

Summarize the Web site audio live program and the problems encountered.Code: (GitHub, to be sorted)Results: With opus Audio encoding, the Web Audio API plays, which can reach up to 100ms latency, high-quality, low-flow audio live.Background: VDI

IntroductionThe PDM represents the pulse density modulation. However, a better abbreviation is "1-bit oversampling audio" because it is simply a high-sample-rate, single bitrate digital system. If you are looking for an advantage, it is that the

2011-06-24 17:35:58 The Alsa Utils below Android offers three tools, respectively:Alsa_amixer: ConfiguringAlsa_aplay: Play RecordingAlsa_ctl:: Store/restore configuration file, related to asound.conf Detailed parameters can be viewed through

MAD (Libmad) is an open source High-precision MPEG Audio Decoder library that supports MPEG-1 standards. Libmad provides 24-bit PCM output, fully fixed-point computing, and is ideal for use on embedded hardware platforms without floating-point

[Plain]/** This program is improved from minimad. For more details, see minimad. c.** MyMinimad. c, 2008/09/17, SiChuan University, China** Compilation: gcc MyMinimad. c-o MyMinimad-lmad-g-Wall* Run:./MyMinimad filename.pdf*/# Include # Include #