Waveform files are digital files obtained by collecting mechanical vibrations of various sounds, and their extensions are ".WAV". The WAV format is a sound file format developed by Microsoft. It is the earliest digital audio format. It supports many compression algorithms, multiple audio bits, sampling frequencies and channels. It uses a sampling frequency of 44.1kHz and 16 quantization bits. .
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
Waveform files are digital files obtained by collecting mechanical vibrations of various sounds. The characteristic of waveform files is that they can save and reproduce the effects of the original sound source. They are often used for recording natural sounds such as music and songs, but the storage space of the files is relatively large.
The extension of the waveform sound file is ".wav".
WAV format is a sound file format developed by Microsoft. It is also called a waveform sound file. It is the earliest digital audio format and is widely supported by Windows platforms and their applications. The WAV format supports many compression algorithms, multiple audio bits, sampling frequencies and channels. It uses a sampling frequency of 44.1kHz and 16 quantization bits, so the sound quality of WAV is almost the same as that of CD.
WAV format files can record various mono or stereo sound information, and can ensure that the sound is not distorted. But WAV files have a fatal disadvantage, that is, they occupy too much disk space (each minute of music requires about 12 megabytes of disk space).
It complies with the Resource Interchange File Format (RIFF) specification and is used to save audio information resources on the Windows platform. It is widely supported by the Windows platform and its applications.
Wave format supports MSADPCM, CCITT A-law, CCITT μ-law and other compression algorithms. It supports a variety of audio bits, sampling frequencies and channels. It is the most popular sound file format on PC; but its file size Larger, mostly used to store short sound clips.
Scope of application:
Generally speaking, the larger the sample size (information amount) of sampling, the higher the sampling frequency, the better the sound quality, but the greater the overhead of waveform audio. Since general speech can be better restored with 8-bit 11.025KHz sampling, waveform audio is generally suitable for the following situations:
1. The sound played is speech, and the music effect has high quality requirements for the sound. Not too high of an occasion.
2. Sound and other data need to be loaded from the CD-ROM drive at the same time, and the transmission of sound data cannot monopolize the processing time.
3. When the sound data that needs to be stored in the PC hard disk is less than 1 minute and the available storage space is sufficient.
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