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The Snack Sound Toolkit is a cross-platform library written by Kåre Sjölander of the Swedish Royal Technical University (KTH) with bindings for the scripting languages Tcl, Python, and Ruby. It provides audio I/O, audio analysis and processing functions, such as spectral analysis , pitch tracking , and filtering , and related graphics ...
A graph of the A-, B-, C- and D-weightings across the frequency range 10 Hz – 20 kHz Video illustrating A-weighting by analyzing a sine sweep (contains audio). A-weighting is a form of frequency weighting and the most commonly used of a family of curves defined in the International standard IEC 61672:2003 and various national standards relating to the measurement of sound pressure level. [1]
Python Imaging Library is a free and open-source additional library for the Python programming language that adds support for opening, manipulating, and saving many different image file formats. It is available for Windows, Mac OS X and Linux. The latest version of PIL is 1.1.7, was released in September 2009 and supports Python 1.5.2–2.7. [3]
Multiple noise processes determine the noise floor of a system. Noise can be picked up from microphone self-noise, preamp noise, wiring and interconnection noise, media noise, etc. Early 78 rpm phonograph discs had a dynamic range of up to 40 dB, [24] soon reduced to 30 dB and worse due to wear from repeated play. Vinyl microgroove phonograph ...
Sound level meters are commonly used in noise pollution studies for the quantification of different kinds of noise, especially for industrial, environmental, mining and aircraft noise. [ 2 ] [ 3 ] The current international standard that specifies sound level meter functionality and performances is the IEC 61672-1:2013.
ISO9660 CD/DVD image file [40] 43 44 30 30 31: CD001: 0x5EAC9 cdi CD-i CD image file 6D 61 69 6E 2E 62 73: main.bs: 0 mgw Nintendo Game & Watch image file 4E 45 53: NES: 0 nes Nintendo Entertainment System image file A0 32 41 A0 A0 A0: 2A: 0x165A4 d64 Commodore 64 1541 disk image (D64 format) 47 53 52 2D 31 35 34 31: GCR-1541: 0 g64 Commodore ...
Compression is commonly used in sound recording and reproduction, broadcasting, [1] live sound reinforcement and some instrument amplifiers. A dedicated electronic hardware unit or audio software that applies compression is called a compressor. In the 2000s, compressors became available as software plugins that run in digital audio workstation ...
In Python 3.x the range() function [28] returns a generator which computes elements of the list on demand. Elements are only generated when they are needed (e.g., when print(r[3]) is evaluated in the following example), so this is an example of lazy or deferred evaluation: