READAU_f

Block Screenshot

Contents

• Read AU sound file

• • Palette

  • Description

  • Dialog box

  • Default properties

  • Interfacing function

  • Computational function

  • Authors

Palette

• Sources palette

Description

Loads a sound file specified by the string *.au file, returning the sampled data in y. The .au extension is appended if no extension is given. Amplitude values are in the range [-1,+1]. auread supports multichannel data in the following formats:

• 8-bit mu-law

• 8-, 16-, and 32-bit linear

• Floating-point

Dialog box

• Input file name

  a character string defining the path of the file.

  Properties : Type 'str' of size 1

• Buffer size

  To improve efficiency it is possible to buffer the input data. Read on the file is only done after each Buffer size call to the block.

  Properties : Type 'vec' of size 1

• Swap mode 0/1

  WithSwap mode=1 the file is supposed to be coded in "little endian IEEE format" and data are swaped if necessary to match the IEEE format of the processor. IfSwap mode=0 then automatic bytes swap is disabled.

  Properties : Type 'vec' of size 1

Default properties

• always active: no

• direct-feedthrough: no

• zero-crossing: no

• mode: no

• regular outputs:

  - port 1 : size [1,1] / type 1

• number/sizes of activation inputs: 1

• number/sizes of activation outputs: 0

• continuous-time state: no

• discrete-time state: yes

• object discrete-time state: no

• name of computational function: readau

Interfacing function

• SCI/modules/scicos_blocks/macros/Sources/READAU_f.sci

Computational function

• SCI/modules/scicos_blocks/src/c/readau.c (Type 2)

Authors

Ramine Nikoukhah - INRIA