SndWriter

class sndfileio.SndWriter(sr, outfile, encoding, fileformat=None, bitrate=0, backend=None, metadata=None)

Bases: object

Class returned by sndwrite_chunked() to write samples

Parameters:

• backend – the Backend instance which created this SndWriter

• sr (int) – the samplerate

• outfile (str) – the file to wite

• encoding (str) – the encoding of the file (pcmXX, floatXX, where XX represents the bits per sample)

• fileformat (Optional[str]) – the fileformat, only needed if the format indicated by the extension in outfile should be overridden

• metadata (Optional[dict[str, str]]) – a dict {str: str}.

Metadata Possible Keys:

• title

• comment

• artist

• album

• tracknumber

• software

Example

>>> from sndfileio import *
>>> writer = sndwrite_chunked("out.flac", 44100)
# writer is a SndWriter
>>> for buf in sndread_chunked("in.flac"):
...     # do some processing, like changing the gain
...     buf *= 0.5
...     writer.write(buf)

Attributes Summary

filetypes

Methods Summary

__call__(frames)	Write the given sample data.
close()	Explicitely close this file
write(frames)	Write the given sample data.

Attributes Documentation

filetypes

Methods Documentation

__call__(frames)

Write the given sample data.

The first array will determine the number of channels to write

Parameters:

frames (np.ndarray) – the samples to write

Return type:

None

close()

Explicitely close this file

Return type:

None

write(frames)

Write the given sample data.

The first array will determine the number of channels to write

Parameters:

frames (np.ndarray) – the samples to write

Return type:

None