Vorrichtung und Verfahren zum Ermitteln einer Quantisierer- Schrittweite

DE1004009955 B UPAB: 20050902 NOVELTY - The device has a device for providing a first step length and a noise threshold, a device for determining a first disturbance introduced by the first step length, a device for comparing this with the noise threshold, a device for selecting a second longer step length if the first disturbance exceeds the threshold, a device for determining a second disturbance introduced by the second step length, a device for comparing the second disturbance with the threshold or first disturbance and a device for quantizing the signal with the second step width if the second disturbance is smaller than the first or the threshold. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (A) a method of determining a quantizer step length; and (B) a computer program for implementing the inventive method. USE - For determining a quantizer step length for quantizing a signal with audio or video information. ADVANTAGE - Introduces little quantization noise and produces a good compression gain.