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Duplicate songs detector via audio fingerprinting

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23 Jun 2020MIT44 min read 1.3M   20.4K   533  
Explains sound fingerprinting algorithm, with a practical example of detecting duplicate files on the user's local drive.
The aim of this article is to show an efficient algorithm of signal processing which will allow one to have a competent system of sound fingerprinting and signal recognition. I'll try to come with some explanations of the article's algorithm, and also speak about how it can be implemented using the C# programming language. Additionally, I'll try to cover topics of digital signal processing that are used in the algorithm, thus you'll be able to get a clearer image of the entire system. And as a proof of concept, I'll show you how to develop a simple WPF MVVM application.
 
namespace Soundfingerprinting.SoundTools.FFMpegResampler
{
    partial class WinFfMpegResampler
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.folderBrowserDialog1 = new System.Windows.Forms.FolderBrowserDialog();
            this.groupBox1 = new System.Windows.Forms.GroupBox();
            this.buttonRefresh = new System.Windows.Forms.Button();
            this.textBox2 = new System.Windows.Forms.TextBox();
            this.label1 = new System.Windows.Forms.Label();
            this.groupBox2 = new System.Windows.Forms.GroupBox();
            this.textBoxBitRate = new System.Windows.Forms.TextBox();
            this.textBoxSamplingRate = new System.Windows.Forms.TextBox();
            this.label3 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.buttonStop = new System.Windows.Forms.Button();
            this.buttonPause = new System.Windows.Forms.Button();
            this.buttonStartConversion = new System.Windows.Forms.Button();
            this.label4 = new System.Windows.Forms.Label();
            this.labelCurrentProcessed = new System.Windows.Forms.Label();
            this.label5 = new System.Windows.Forms.Label();
            this.labelTotalFiles = new System.Windows.Forms.Label();
            this.label6 = new System.Windows.Forms.Label();
            this.label7 = new System.Windows.Forms.Label();
            this.textBox3 = new System.Windows.Forms.TextBox();
            this.buttonOutputBrowse = new System.Windows.Forms.Button();
            this.folderBrowserDialog2 = new System.Windows.Forms.FolderBrowserDialog();
            this.richTextBox1 = new System.Windows.Forms.RichTextBox();
            this.label8 = new System.Windows.Forms.Label();
            this.labelSkipped = new System.Windows.Forms.Label();
            this.groupBox1.SuspendLayout();
            this.groupBox2.SuspendLayout();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
            this.button1.Location = new System.Drawing.Point(382, 11);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "Browse";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // textBox1
            // 
            this.textBox1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.textBox1.Location = new System.Drawing.Point(57, 13);
            this.textBox1.Name = "textBox1";
            this.textBox1.ReadOnly = true;
            this.textBox1.Size = new System.Drawing.Size(316, 20);
            this.textBox1.TabIndex = 1;
            // 
            // groupBox1
            // 
            this.groupBox1.Controls.Add(this.buttonRefresh);
            this.groupBox1.Controls.Add(this.textBox2);
            this.groupBox1.Controls.Add(this.label1);
            this.groupBox1.Location = new System.Drawing.Point(13, 74);
            this.groupBox1.Name = "groupBox1";
            this.groupBox1.Size = new System.Drawing.Size(220, 88);
            this.groupBox1.TabIndex = 2;
            this.groupBox1.TabStop = false;
            this.groupBox1.Text = "Files";
            // 
            // buttonRefresh
            // 
            this.buttonRefresh.Location = new System.Drawing.Point(133, 52);
            this.buttonRefresh.Name = "buttonRefresh";
            this.buttonRefresh.Size = new System.Drawing.Size(75, 23);
            this.buttonRefresh.TabIndex = 2;
            this.buttonRefresh.Text = "Refresh";
            this.buttonRefresh.UseVisualStyleBackColor = true;
            this.buttonRefresh.Click += new System.EventHandler(this.buttonRefresh_Click);
            // 
            // textBox2
            // 
            this.textBox2.Enabled = false;
            this.textBox2.Location = new System.Drawing.Point(108, 26);
            this.textBox2.Name = "textBox2";
            this.textBox2.Size = new System.Drawing.Size(100, 20);
            this.textBox2.TabIndex = 1;
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(7, 29);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(95, 13);
            this.label1.TabIndex = 0;
            this.label1.Text = "Music Files Found:";
            // 
            // groupBox2
            // 
            this.groupBox2.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.groupBox2.Controls.Add(this.textBoxBitRate);
            this.groupBox2.Controls.Add(this.textBoxSamplingRate);
            this.groupBox2.Controls.Add(this.label3);
            this.groupBox2.Controls.Add(this.label2);
            this.groupBox2.Location = new System.Drawing.Point(239, 74);
            this.groupBox2.Name = "groupBox2";
            this.groupBox2.Size = new System.Drawing.Size(214, 88);
            this.groupBox2.TabIndex = 3;
            this.groupBox2.TabStop = false;
            this.groupBox2.Text = "Conversion";
            // 
            // textBoxBitRate
            // 
            this.textBoxBitRate.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.textBoxBitRate.Location = new System.Drawing.Point(88, 52);
            this.textBoxBitRate.Name = "textBoxBitRate";
            this.textBoxBitRate.Size = new System.Drawing.Size(101, 20);
            this.textBoxBitRate.TabIndex = 3;
            this.textBoxBitRate.Text = "64000";
            // 
            // textBoxSamplingRate
            // 
            this.textBoxSamplingRate.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.textBoxSamplingRate.Location = new System.Drawing.Point(88, 26);
            this.textBoxSamplingRate.Name = "textBoxSamplingRate";
            this.textBoxSamplingRate.Size = new System.Drawing.Size(101, 20);
            this.textBoxSamplingRate.TabIndex = 2;
            this.textBoxSamplingRate.Text = "5512";
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(37, 57);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(45, 13);
            this.label3.TabIndex = 1;
            this.label3.Text = "Bit Rate";
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(6, 29);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(76, 13);
            this.label2.TabIndex = 0;
            this.label2.Text = "Sampling Rate";
            // 
            // buttonStop
            // 
            this.buttonStop.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
            this.buttonStop.Enabled = false;
            this.buttonStop.Location = new System.Drawing.Point(297, 169);
            this.buttonStop.Name = "buttonStop";
            this.buttonStop.Size = new System.Drawing.Size(75, 23);
            this.buttonStop.TabIndex = 6;
            this.buttonStop.Text = "Stop";
            this.buttonStop.UseVisualStyleBackColor = true;
            this.buttonStop.Click += new System.EventHandler(this.buttonStop_Click);
            // 
            // buttonPause
            // 
            this.buttonPause.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
            this.buttonPause.Enabled = false;
            this.buttonPause.Location = new System.Drawing.Point(378, 169);
            this.buttonPause.Name = "buttonPause";
            this.buttonPause.Size = new System.Drawing.Size(75, 23);
            this.buttonPause.TabIndex = 5;
            this.buttonPause.Text = "Pause";
            this.buttonPause.UseVisualStyleBackColor = true;
            this.buttonPause.Click += new System.EventHandler(this.buttonPause_Click);
            // 
            // buttonStartConversion
            // 
            this.buttonStartConversion.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
            this.buttonStartConversion.Enabled = false;
            this.buttonStartConversion.Location = new System.Drawing.Point(216, 169);
            this.buttonStartConversion.Name = "buttonStartConversion";
            this.buttonStartConversion.Size = new System.Drawing.Size(75, 23);
            this.buttonStartConversion.TabIndex = 4;
            this.buttonStartConversion.Text = "Start";
            this.buttonStartConversion.UseVisualStyleBackColor = true;
            this.buttonStartConversion.Click += new System.EventHandler(this.ButtonStartConversionClick);
            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(20, 174);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(51, 13);
            this.label4.TabIndex = 4;
            this.label4.Text = "Progress:";
            // 
            // labelCurrentProcessed
            // 
            this.labelCurrentProcessed.AutoSize = true;
            this.labelCurrentProcessed.Location = new System.Drawing.Point(77, 174);
            this.labelCurrentProcessed.Name = "labelCurrentProcessed";
            this.labelCurrentProcessed.Size = new System.Drawing.Size(13, 13);
            this.labelCurrentProcessed.TabIndex = 5;
            this.labelCurrentProcessed.Text = "0";
            // 
            // label5
            // 
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(118, 174);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(12, 13);
            this.label5.TabIndex = 6;
            this.label5.Text = "/";
            // 
            // labelTotalFiles
            // 
            this.labelTotalFiles.AutoSize = true;
            this.labelTotalFiles.Location = new System.Drawing.Point(143, 174);
            this.labelTotalFiles.Name = "labelTotalFiles";
            this.labelTotalFiles.Size = new System.Drawing.Size(13, 13);
            this.labelTotalFiles.TabIndex = 7;
            this.labelTotalFiles.Text = "0";
            // 
            // label6
            // 
            this.label6.AutoSize = true;
            this.label6.Location = new System.Drawing.Point(12, 16);
            this.label6.Name = "label6";
            this.label6.Size = new System.Drawing.Size(31, 13);
            this.label6.TabIndex = 10;
            this.label6.Text = "Input";
            // 
            // label7
            // 
            this.label7.AutoSize = true;
            this.label7.Location = new System.Drawing.Point(12, 51);
            this.label7.Name = "label7";
            this.label7.Size = new System.Drawing.Size(39, 13);
            this.label7.TabIndex = 11;
            this.label7.Text = "Output";
            // 
            // textBox3
            // 
            this.textBox3.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.textBox3.Location = new System.Drawing.Point(57, 48);
            this.textBox3.Name = "textBox3";
            this.textBox3.ReadOnly = true;
            this.textBox3.Size = new System.Drawing.Size(316, 20);
            this.textBox3.TabIndex = 12;
            // 
            // buttonOutputBrowse
            // 
            this.buttonOutputBrowse.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
            this.buttonOutputBrowse.Location = new System.Drawing.Point(382, 46);
            this.buttonOutputBrowse.Name = "buttonOutputBrowse";
            this.buttonOutputBrowse.Size = new System.Drawing.Size(75, 23);
            this.buttonOutputBrowse.TabIndex = 13;
            this.buttonOutputBrowse.Text = "Browse";
            this.buttonOutputBrowse.UseVisualStyleBackColor = true;
            this.buttonOutputBrowse.Click += new System.EventHandler(this.buttonOutputBrowse_Click);
            // 
            // richTextBox1
            // 
            this.richTextBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                        | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.richTextBox1.Location = new System.Drawing.Point(15, 212);
            this.richTextBox1.Name = "richTextBox1";
            this.richTextBox1.Size = new System.Drawing.Size(442, 143);
            this.richTextBox1.TabIndex = 14;
            this.richTextBox1.Text = "";
            // 
            // label8
            // 
            this.label8.AutoSize = true;
            this.label8.Location = new System.Drawing.Point(20, 196);
            this.label8.Name = "label8";
            this.label8.Size = new System.Drawing.Size(49, 13);
            this.label8.TabIndex = 15;
            this.label8.Text = "Skipped:";
            // 
            // labelSkipped
            // 
            this.labelSkipped.AutoSize = true;
            this.labelSkipped.Location = new System.Drawing.Point(76, 195);
            this.labelSkipped.Name = "labelSkipped";
            this.labelSkipped.Size = new System.Drawing.Size(13, 13);
            this.labelSkipped.TabIndex = 16;
            this.labelSkipped.Text = "0";
            // 
            // WinFfMpegResampler
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(469, 367);
            this.Controls.Add(this.labelSkipped);
            this.Controls.Add(this.label8);
            this.Controls.Add(this.buttonStop);
            this.Controls.Add(this.richTextBox1);
            this.Controls.Add(this.buttonPause);
            this.Controls.Add(this.buttonOutputBrowse);
            this.Controls.Add(this.buttonStartConversion);
            this.Controls.Add(this.textBox3);
            this.Controls.Add(this.label7);
            this.Controls.Add(this.label6);
            this.Controls.Add(this.labelTotalFiles);
            this.Controls.Add(this.label5);
            this.Controls.Add(this.labelCurrentProcessed);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.groupBox2);
            this.Controls.Add(this.groupBox1);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.button1);
            this.MaximizeBox = false;
            this.MaximumSize = new System.Drawing.Size(485, 405);
            this.MinimumSize = new System.Drawing.Size(485, 405);
            this.Name = "WinFfMpegResampler";
            this.Text = "FFMpeg Resampler";
            this.groupBox1.ResumeLayout(false);
            this.groupBox1.PerformLayout();
            this.groupBox2.ResumeLayout(false);
            this.groupBox2.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog1;
        private System.Windows.Forms.GroupBox groupBox1;
        private System.Windows.Forms.Button buttonRefresh;
        private System.Windows.Forms.TextBox textBox2;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.GroupBox groupBox2;
        private System.Windows.Forms.Button buttonPause;
        private System.Windows.Forms.Button buttonStartConversion;
        private System.Windows.Forms.TextBox textBoxBitRate;
        private System.Windows.Forms.TextBox textBoxSamplingRate;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label4;
        private System.Windows.Forms.Label labelCurrentProcessed;
        private System.Windows.Forms.Label label5;
        private System.Windows.Forms.Label labelTotalFiles;
        private System.Windows.Forms.Button buttonStop;
        private System.Windows.Forms.Label label6;
        private System.Windows.Forms.Label label7;
        private System.Windows.Forms.TextBox textBox3;
        private System.Windows.Forms.Button buttonOutputBrowse;
        private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog2;
        private System.Windows.Forms.RichTextBox richTextBox1;
        private System.Windows.Forms.Label label8;
        private System.Windows.Forms.Label labelSkipped;
    }
}

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


Written By
Ciumac Sergiu
Software Developer
Moldova (Republic of) Moldova (Republic of)
Interested in computer science, math, research, and everything that relates to innovation. Fan of agnostic programming, don't mind developing under any platform/framework if it explores interesting topics. In search of a better programming paradigm.

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Layout: fixed | fluid

Posted 4 Jun 2011

Article Copyright 2011 by Ciumac Sergiu
Everything else Copyright © CodeProject, 1999-2024

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