The new file dialog provides shortcuts for common audio formats and
allows you to remember the format used.
When selecting a format and initial duration of the file to allocate, the
dialog indicates the size of the resulting data.
File format support via
by Erik de Castro Lopo:
- at least 14 PCM sound file formats formats including
WAV, W64, AIFF/AIFF-C, IFF/SVX, AU and raw PCM files.
- PCM audio encoding formats including
8/16/24/32 bit PCM, 32 and 64 bit floating point, u-law, A-l
aw and ADPCM
- voice encoding formats including
GSM 6.10, G721/G723 ADPCM, 12/16/24 bit DWVW
- multichannel file support: Sweep provides complete editing and
processing for multichannel sound files.
Sweep can import and export audio files in
Ogg Vorbis format. This is an
extremely high quality perceptual audio codec and is free, open and
Independent tests have found it to be of higher quality than
non-free codecs including MP3, WMA and MP3pro -- hence, Ogg Vorbis is
Sweep's preferred codec for final export.
This dialog shows the default Variable Bitrate encoding mode, in which
a simple "quality" slider from 0 to 10 allows the Vorbis encoder to vary
bitrate depending on the characteristics of the file being encoded.
Sweep can remember your encoding options for you, or allow you to use
sensible defaults at any time.
This dialog shows the Average Bitrate mode for Ogg Vorbis encoding. This
uses the bitrate management engine provided by Xiph.org's libvorbis, allowing
the user to specify a nominal average bitrate.
Optionally, you can also specify minimum and maximum bitrates to provide
guarantees for fixed-size channels or for general streaming applications.
As of version 0.5.9, Sweep can import and export speech files encoded in
Speex format. This is a special
purpose speech codec, designed for efficient Voice over IP (VoIP) and
file-based compression. It is free, open and unpatented.
This dialog shows the encoding options available, including a simple
"quality" slider from 0 to 10, the option of using Variable Bitrate (VBR)
mode, and fine tuning of the computational complexity of the encoding and the
Speex frame packing.
After encoding, Sweep provides a brief summary including the size of the
file and the resulting bitrate.
If any problems were encountered, such as running out of disk space, Sweep
provides notification of the problem and a summary of the partial results.
(This screenshot was produced by an attempt to write to the special file
/dev/full, which simulates a full filesystem).
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