Click here to Skip to main content
15,881,588 members
Articles / Multimedia / DirectX

C# Synth Toolkit - Part II

Rate me:
Please Sign up or sign in to vote.
4.84/5 (22 votes)
17 Aug 2007MIT12 min read 111.5K   1.3K   91  
Demonstrates how to create a simple synthesizer using the C# Synth Toolkit
#region License

/* Copyright (c) 2007 Leslie Sanford
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy 
 * of this software and associated documentation files (the "Software"), to 
 * deal in the Software without restriction, including without limitation the 
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 
 * sell copies of the Software, and to permit persons to whom the Software is 
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software. 
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
 * THE SOFTWARE.
 */

#endregion

#region Contact

/*
 * Leslie Sanford
 * Email: jabberdabber@hotmail.com
 */

#endregion

using System;
using System.Collections.Generic;
using System.Text;
using Sanford.Multimedia.Synth;
using Sanford.Multimedia.Midi;

namespace SimpleSynthDemo
{
    /// <summary>
    /// Represents a single voice.
    /// </summary>
    public class SimpleVoice : Voice
    {
        #region SimpleVoice Members

        #region Fields

        // Used for generating the voice's waveform.
        private SimpleOscillator oscillator;

        #endregion

        #region Constructors

        /// <summary>
        /// Initializes a new instance of the SimpleVoice class.
        /// </summary>
        /// <param name="sampleRate">
        /// The number of samples per second.
        /// </param>
        /// <param name="buffer">
        /// The buffer that the voice will write to.
        /// </param>
        public SimpleVoice(SampleRate sampleRate, StereoBuffer buffer) 
            : base(sampleRate, buffer)
        {
            Initialize(sampleRate, buffer);            
        }

        /// <summary>
        /// Initializes a new instance of the SimpleVoice class.
        /// </summary>
        /// <param name="sampleRate">
        /// The number of samples per second.
        /// </param>
        /// <param name="buffer">
        /// The buffer that the voice will write to.
        /// </param>
        /// <param name="name">
        /// The name of the voice.
        /// </param>
        public SimpleVoice(SampleRate sampleRate, StereoBuffer buffer, string name)
            : base(sampleRate, buffer, name)
        {
            Initialize(sampleRate, buffer);
        }

        #endregion

        #region Methods

        private void Initialize(SampleRate sampleRate, StereoBuffer buffer)
        {            
            // Create oscillator passing it the sample rate used by the 
            // voice and the buffer given to the voice.
            oscillator = new SimpleOscillator(sampleRate, buffer);

            // Add components that will synthesize output.           
            AddComponent(oscillator);

            // Add components that have parameters that will be adjusted.
            AddParameters(oscillator);

            // Add components that can respond to pitch bend modulation.
            AddBendable(oscillator);
        }

        #endregion

        #region Properties

        protected override bool IsPlaying
        {
            get
            {
                return oscillator.IsPlaying;
            }
        }

        public override bool SynthesizeReplaceEnabled
        {
            get
            {
                return oscillator.SynthesizeReplaceEnabled;
            }
            set
            {
                oscillator.SynthesizeReplaceEnabled = value;
            }
        }

        #endregion

        #endregion
    }
}

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The MIT License


Written By
United States United States
Aside from dabbling in BASIC on his old Atari 1040ST years ago, Leslie's programming experience didn't really begin until he discovered the Internet in the late 90s. There he found a treasure trove of information about two of his favorite interests: MIDI and sound synthesis.

After spending a good deal of time calculating formulas he found on the Internet for creating new sounds by hand, he decided that an easier way would be to program the computer to do the work for him. This led him to learn C. He discovered that beyond using programming as a tool for synthesizing sound, he loved programming in and of itself.

Eventually he taught himself C++ and C#, and along the way he immersed himself in the ideas of object oriented programming. Like many of us, he gotten bitten by the design patterns bug and a copy of GOF is never far from his hands.

Now his primary interest is in creating a complete MIDI toolkit using the C# language. He hopes to create something that will become an indispensable tool for those wanting to write MIDI applications for the .NET framework.

Besides programming, his other interests are photography and playing his Les Paul guitars.

Comments and Discussions