alvas

alvas
Name: alvas
Score: 490.01
Last Seen: 10 days, 19 hours, 22 minutes ago
Member Since: 4 March, 2009
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Alvas.Audio 9.0 version has been published.
published 2 days, 6 hours, 22 minutes ago posted by alvasalvas 11 days, 8 hours ago
Friday, May 17, 2013 9:27:50 AM GMT Wednesday, May 08, 2013 7:50:04 AM GMT
Alvas.Audio 9.0 version has been published. New classes were added: AiffReader class for reading audio data from AIFF (Audio Interchange File Format) streams. AiffWriter class for writing audio data to AIFF (Audio Interchange File Format) streams. Alvas.Audio is C# audio library which plays, records, converts and edits sound in PCM, Microsoft ADPCM, IMA ADPCM, CCITT A-Law, CCITT u-Law, GSM 6.10, MPEG Layer-3 (mp3), Dialogic VOX (more)
category: Smart Client | clicked: 8 | comment | | source: alvas.net
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Console and multithreaded recording and playback
published 664 days, 17 hours, 34 minutes ago posted by alvasalvas 665 days, 23 hours, 14 minutes ago
Sunday, July 24, 2011 10:16:21 PM GMT Saturday, July 23, 2011 4:36:21 PM GMT
How to use RecorderEx and PlayerEx in console application or Windows Service? In order to use RecorderEx and PlayerEx in a console application or Windows Service need to create instances of these classes by using a parameterized constructor: new RecorderEx(true) and new PlayerEx(true), respectively. The same is true for multi-threaded recorder and player. Below is an example of full duplex Recorder and Player... (more)
category: How To | clicked: 19 | 1 comment | | source: www.alvas.net
tags: Audio&Multimedia
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Vox audio file format
posted by alvasalvas 672 days, 22 hours, 10 minutes ago
Saturday, July 16, 2011 5:39:47 PM GMT
Question: I found that your vox converter doesn't handle vox files from the Orator phone dictation system right. Answer: There are so many questions about Vox format. What is the Vox format? Vox audio file format is a headerless audio format data, which generally contains Dialogic_ADPCM, but may also include A-law, Mu-law, PCM, and any other type of audio data. It means that vox file doesn't have the header and extention ".vox" doesn't say anything at all. Therefore it is very important to know in whic... (more)
category: How To | clicked: 0 | comment | | source: alvas.net
tags: Audio&Multimedia
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Removes DC offset
published 705 days, 3 hours, 32 minutes ago posted by alvasalvas 709 days, 6 hours, 59 minutes ago
Tuesday, June 14, 2011 12:17:32 PM GMT Friday, June 10, 2011 8:50:27 AM GMT
DC offset is an offsetting of a signal from zero. It occurs when hardware, such as a sound card, adds DC offset to the recorded audio signal. DC offset is shift of the red line comparatively to the black one on figure below... (more)
category: How To | clicked: 12 | comment | | source: alvas.net
tags: Audio&Multimedia
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Converts Mp3 Joint Stereo to mono
published 705 days, 3 hours, 32 minutes ago posted by alvasalvas 709 days, 7 hours, 2 minutes ago
Tuesday, June 14, 2011 12:17:32 PM GMT Friday, June 10, 2011 8:47:32 AM GMT
Question: Have you got any issues with "Joint-Stereo" MP3's? I have a customer who sends me the attached MP3 and when I convert it to a mono format, it effectively cancels out the audio. Answer: The problem is that in Mp3 Joint Stereo sound file mirror is opposite... (more)
category: How To | clicked: 2 | comment | | source: alvas.net
tags: Audio&Multimedia
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Resampling and noise
published 705 days, 3 hours, 32 minutes ago posted by alvasalvas 709 days, 7 hours, 7 minutes ago
Tuesday, June 14, 2011 12:17:32 PM GMT Friday, June 10, 2011 8:42:31 AM GMT
Very often we have to change the sampling rate, number of channels and the size of a sample when converting from one format to another. You can use AudioCompression.Convert method for these purposes. Unfortunately, for the uncompressed PCM -> PCM this leads to a significant reduction in sound quality and appearance of extraneous noise. We can verify this by example... (more)
category: How To | clicked: 4 | comment | | source: alvas.net
tags: Audio&Multimedia
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Alvas.Audio Readers
published 705 days, 3 hours, 32 minutes ago posted by alvasalvas 709 days, 7 hours, 12 minutes ago
Tuesday, June 14, 2011 12:17:32 PM GMT Friday, June 10, 2011 8:37:45 AM GMT
Audio Readers is a hierarchy of Alvas.Audio classes that implement IAudioReader interface used to read format and audio data. AudioReader is a base class for the readers that can read an audio data from the stream. This class is abstract. AuReader class reads an audio data from the .AU and .SND streams. AviReader class reads audio data from the Avi stream. WaveReader class reads WAVE (waveform audio format) data from the stream. RawReader class reads an audio data from the headerless stream. Slinear, Gsm... (more)
category: How To | clicked: 4 | comment | | source: alvas.net
tags: Audio&Multimedia
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Now Alvas.FileControls is free
published 706 days, 20 hours, 1 minute ago posted by alvasalvas 714 days, 23 hours, 3 minutes ago
Sunday, June 12, 2011 7:49:13 PM GMT Saturday, June 04, 2011 4:46:47 PM GMT
Alvas.FileControls now can be used in any of your projects for free. Sources still cost money. (more)
category: Smart Client | clicked: 20 | 2 comments | | source: alvas.net
tags: file management
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Now Alvas.Shapeforms is free
published 706 days, 20 hours, 1 minute ago posted by alvasalvas 714 days, 23 hours, 15 minutes ago
Sunday, June 12, 2011 7:49:13 PM GMT Saturday, June 04, 2011 4:35:21 PM GMT
Alvas.Shapeforms now can be used in any of your projects for free. Sources still cost money. (more)
category: Smart Client | clicked: 19 | 3 comments | | source: alvas.net
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Now Alvas.Scriptor is free
published 706 days, 20 hours, 1 minute ago posted by alvasalvas 714 days, 23 hours, 41 minutes ago
Sunday, June 12, 2011 7:49:13 PM GMT Saturday, June 04, 2011 4:08:47 PM GMT
Alvas.Scriptor now can be used in any of your projects for free. Sources still cost money. (more)
category: How To | clicked: 18 | comment | | source: alvas.net
tags: Scripting
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Asp.Net Audio Converter
published 722 days, 6 hours, 33 minutes ago posted by alvasalvas 723 days, 37 minutes ago
Saturday, May 28, 2011 9:16:40 AM GMT Friday, May 27, 2011 3:12:57 PM GMT
Converts audio files with Alvas.Audio in Asp.Net application as easy as in Windows Forms, WPF, Windows Service and Console Apps. You need Upload audio file. Select your audio file from list on the server. Select audio format from list with available audio formats. Press “Convert” button and download result audio file... (more)
category: Web Dev | clicked: 14 | 1 comment | | source: alvas.net
tags: audio, Audio&Multimedia
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Nemerle 1.0 Released - Nemerle Forum | Google Groups
published 732 days, 9 hours, 15 minutes ago posted by alvasalvas 733 days, 53 minutes ago
Wednesday, May 18, 2011 6:34:38 AM GMT Tuesday, May 17, 2011 2:56:53 PM GMT
Today (May 17, 2011) first version of Nemerle 1.0 is released. Windows installer can be downloaded here http://goo.gl/UYyVr Official site: http://nemerle.org Twitter: http://twitter.com/#!/nemerle Facebook page: http://facebook.com/Nemerle The installer contains: * Command line Nemerle 1.0 compiler ncc.exe for .NET 2-3.5 and Mono 2.x. * Standard Nemerle Library and standard macro library. * Microsoft Visual Studio 2008 IDE integration module. * Nemerle Express Edition – standalone IDE based on ... (more)
category: How To | clicked: 0 | comment | | source: groups.google.com
tags: language, Nemerle, Compiler
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Alvas.Net Blog: Alvas.Audio and WPF
posted by alvasalvas 740 days, 1 hour, 4 minutes ago
Tuesday, May 10, 2011 2:46:09 PM GMT
For using Windows Forms controls in Windows Presentation Foundation(WPF) application needs: Add reference to WindowsFormsIntegration assembly (in WindowsFormsIntegration.dll) to your project.Add reference to System.Windows.Forms assembly (in System.Windows.Forms.dll) to your project.In the Window element, add the following namespace mapping xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms" in Window1.xaml. The wf namespace mapping establishes a reference to the assembly... (more)
category: Smart Client | clicked: 0 | comment | | source: alvasnet.blogspot.com
tags: Audio&Multimedia, WPF
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Alvas.Audio supports x64 mode on 64-bit operating systems.
published 771 days, 5 hours, 20 minutes ago posted by alvasalvas 774 days, 8 hours, 4 minutes ago
Saturday, April 09, 2011 10:30:14 AM GMT Wednesday, April 06, 2011 7:46:04 AM GMT
Alvas.Audio 8.1 version has been published. New features: 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 volu... (more)
category: How To | clicked: 0 | comment | | source: alvas.net
tags: Audio&Multimedia, sound mixer
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Alvas.Audio new 7.7 version has been published.
published 858 days, 21 hours, 26 minutes ago posted by alvasalvas 860 days, 1 hour, 49 minutes ago
Tuesday, January 11, 2011 6:23:59 PM GMT Monday, January 10, 2011 2:00:36 PM GMT
New features: Support audio filters such as Chorus, Compressor, Distortion, Echo, Flanger, Gargle, I3DL2Reverb, ParamEq, WavesReverb. Helper for converting Mp3 file to Wav file with PCM (Pulse-code modulation) data Helper for decoding audio data in PCM (Pulse-code modulation). Helper for decoding audio data in PCM (Pulse-code modulation) 16 bit Create fade in/out effect Create silence (more)
category: How To | clicked: 0 | comment | | source: alvas.net
tags: audio, Audio&Multimedia
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How to save audio to mp3 on Silverlight 4
posted by alvasalvas 1175 days, 20 hours, 9 minutes ago
Sunday, February 28, 2010 7:41:22 PM GMT
As you know Silverlight 4 supports access to the microphone. Besides it can call COM objects on the client side. To save the audio in mp3 format we need: Make the COM object wrapper, which allows us to invoke the necessary Alvas.Audio functionality. Create AlvasCom project as ClassLibrary. In AssemblyInfo.cs change the line [assembly: ComVisible(false)] to [assembly: ComVisible(true)] Add a reference to Alvas.Audio.dll Add Alvas.Audio-wrapper interface and its implementation. See the code below... (more)
category: Metro | clicked: 1 | comment | | source: alvas.net
tags: audio, Audio&Multimedia
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Alvas.Audio 7.1 has been published.
published 1198 days, 8 hours, 25 minutes ago posted by alvasalvas 1200 days, 3 hours, 27 minutes ago
Saturday, February 06, 2010 7:24:26 AM GMT Thursday, February 04, 2010 12:23:13 PM GMT
Live Support .Net Products New! Alvas.Audio    Alvas.FileControls    Alvas.ShapeForms    Alvas.Scriptor    Alvas.Suite Free Products    Alvas.Controls    Alvas.Labels Downloads Orders Custom Development Support Customers Get Free License Site Map Search Translate by Google  Overview    News    Articles    How to..    Order    Support    Free Download    Demo       PR    PAD  Part of Alvas.Suite Alvas.Audio is C# audio library for .Net developers.Main features:Records audioPlays audioS... (more)
category: How To | clicked: 0 | comment | | source: alvas.net
tags: Audio&Multimedia
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Alvas.Net Blog: ID3 tags for Wave files.
posted by alvasalvas 1206 days, 8 hours, 47 minutes ago
Friday, January 29, 2010 7:02:36 AM GMT
ID3 (Identify a MP3) is metadata container most often used for MP3 audio files. ID3 signature contains information about the title track, album, artist name, etc. about the file to be stored in the file itself. Please see ID3. Wave files can also store metadata similar ID3. The code below shows how to add, delete, and read metadata from the Wav files.         privatevoid WaveTag()         {             string fileName = "in.wav";             WaveReadWriter wrw = newWaveReadWriter(File.Open(... (more)
category: How To | clicked: 0 | comment | | source: alvasnet.blogspot.com
tags: Audio&Multimedia
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Alvas.Net Blog: What is ACM driver?
published 1203 days, 2 hours, 5 minutes ago posted by alvasalvas 1207 days, 7 hours, 50 minutes ago
Monday, February 01, 2010 1:44:24 PM GMT Thursday, January 28, 2010 7:59:48 AM GMT
Audio Compression Manager (ACM) is the Windows multimedia framework that manages audio codecs. Codec is a computer program that compresses/decompresses digital audio data according to a given audio file format or streaming audio format. ACM driver is dynamic-link library (DLL) which contains audio codecs for different audio formats. ACM driverss can be recognized by their filename extension ".acm". For more details please see AudioCompressionManager The code below can be used to list ACM codec... (more)
category: How To | clicked: 0 | comment | | source: alvasnet.blogspot.com
tags: Audio&Multimedia
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Alvas.Net Blog: Communicate with aliens on IronPython (ending)
published 1216 days, 2 hours, 11 minutes ago posted by alvasalvas 1218 days, 3 hours, 44 minutes ago
Tuesday, January 19, 2010 1:38:55 PM GMT Sunday, January 17, 2010 12:06:20 PM GMT
Previously, we are talking with aliens in C#, Nemerle, Boo and F#. Now let's try to do the same on IronPython. See code below. from System import * from System.Collections.Generic import * from System.Text import * from Alvas.Audio import * def rexOpen(sender, e):     _play.OpenPlayer(pcmFormat)     _play.StartPlay() def rex_Close(sender, e):     _play.ClosePlayer() def rexData(sender, e):     data = AudioCompressionManager.Reverse(pcmFormat, e.Data)     _play.AddData(data) _p... (more)
category: How To | clicked: 0 | comment | | source: alvasnet.blogspot.com
tags: Audio&Multimedia
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