PCMformátumban

PCMformátumban refers to Pulse-Code Modulation (PCM) as a method for digitally representing analog signals. It is the standard method for digital audio. In PCM, the amplitude of an analog signal is sampled at regular intervals, and each sample is quantized to the nearest value within a range of digital steps. This process converts a continuous analog waveform into a discrete digital signal.

The key parameters defining a PCM format are the sampling rate and the bit depth. The sampling rate determines how many times per second the analog signal is measured. Common sampling rates for audio include 44.1 kHz (CD quality) and 48 kHz (common in professional audio and video). The bit depth, or resolution, indicates the number of bits used to represent each sample's amplitude. Higher bit depths result in a more accurate representation of the original analog signal. For instance, 16-bit PCM is standard for CDs, while 24-bit PCM is often used in professional recording.

PCM data can be uncompressed, meaning every sample is stored, leading to large file sizes. Alternatively, PCM can be the basis for lossy or lossless compression algorithms, such as MP3 or FLAC, respectively. These compression techniques aim to reduce file size while preserving as much of the original audio quality as possible. The term "PCMformátumban" therefore signifies audio data encoded using this fundamental digital representation technique.