Wav File Source: Difference between revisions

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(add "See Also" section w. refs to Wav file sink, file {sink,source})
 
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[[Category:Block Docs]]
[[Category:Block Docs]]
Read stream from a Microsoft PCM (.wav) file, output floats.
It reads audio stream from a Microsoft PCM (pulse code modulated) (.wav) file (all versions of GNU Radio) and every other file format that [http://libsndfile.github.io/libsndfile/formats.html ''libsndfile''] supports (GNU Radio 3.9.0.0 and later).


Unless otherwise called, values are within [-1;1]. Check gr_make_wavfile_source() for extra info.
Its output is a float stream.
 
Unless called otherwise, the values are inside the range of [-1:1].


== Parameters ==
== Parameters ==
Line 8: Line 10:


; File
; File
: Path to the file to read
: Path to the .wav file to be read


; Repeat
; Repeat
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== Example Flowgraph ==
== Example Flowgraph ==


Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI.  Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
This flowgraph shows a Wav File Source block producing pre-recorded radioteletype signals.
 
[[File:Test0624.png|800px]]


== Source Files ==
== Source Files ==


; C++ files
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/wavfile_source_impl.cc]


; Header files
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/wavfile_source_impl.h]


; Public header files
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/include/gnuradio/blocks/wavfile_source.h]


; Block definition
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/grc/blocks_wavfile_source.block.yml]
 
== See also ==
 
* [[Wav_File_Sink|Wav File Sink]] for info on how to write audio files
* [[File_Source|File Source]] for info how to read raw files
* [[File_Sink|File Sink]] for info how to write raw files

Latest revision as of 10:34, 26 June 2022

It reads audio stream from a Microsoft PCM (pulse code modulated) (.wav) file (all versions of GNU Radio) and every other file format that libsndfile supports (GNU Radio 3.9.0.0 and later).

Its output is a float stream.

Unless called otherwise, the values are inside the range of [-1:1].

Parameters

(R): Run-time adjustable

File
Path to the .wav file to be read
Repeat
Repeat playback of the file when end is reached
N Channels
Number of audio channels to output

Example Flowgraph

This flowgraph shows a Wav File Source block producing pre-recorded radioteletype signals.

Test0624.png

Source Files

C++ files
[1]
Header files
[2]
Public header files
[3]
Block definition
[4]

See also

Retrieved from "https://wiki.gnuradio.org/index.php?title=Wav_File_Source&oldid=12347"