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English

Alvas.Audio 8.1 released

Alvas.Net announces the release of Alvas.Audio version 8.1.

Audio is an integral part of many software applications. Alvas.Audio from
Alvas.NET enables developers to add audio capabilities to different .NET
applications:
- play, record and convert uncompressed or compressed audio data;
- pause and resume playback or recording;
- record and play data to or from the stream;
- play mixed audio data;
- set up mixer controls;
- get the current sound position;
- view the level of the input sound signal;
- get the format list for specified WaveFormat;
- get audio stream duration in milliseconds;
- change Wave stream to MP3 stream if the former contains "MPEG Layer 3" data;
- play, record and convert RAW headerless format (SLINEAR etc);
- play and extract audio data from Avi streams;
- encode and decode Dialogic .vox (adpcm) format data.
- convert audio wave stream to mp3 stream
- convert Dialogic .vox (adpcm) stream to Mp3 stream
- insert and mix audio data into main audio data with specified offset multiple times
- split stereo audio stream to two mono streams
- merge 2 audio mono into one stereo
- reverse audio wave stream
- sign library with strong name. Audio library can be added to GAC

What's new in version 8.1?
- Supports x64 mode on 64-bit operating systems.
- WaveformVisualizer draws picture of the sound amplitude-time representation (Waveform).
- Removes DC offset. DC offset is an offsetting of a signal from zero. Occurs when hardware, such as a sound card, adds DC offset to a recorded audio signal.
- AuReader reads an audio data from the .AU and .SND streams.
- ToFormat method converts audio data to the specified audio format.
- Normalize method raises the volume so that the highest sample level reaches a maximum level.
- Swaps stereo channels.
- Inverts the audio signal to 180 degrees. All positive values in the wave form are replaced by negative and vice versa.
- Frees memory previously allocated for audio format.
- Creates 32-bit IEEE Float audio format.
- Performs resampling audio data from and to 8/16/24/32-bit integer PCM and 32-bit IEEE Float audio formats.
- Windows Presentation Foundation (WPF) example