Software Map

MP3Gainは、MP3ファイルを分析して、音質劣化を伴わずに指定した音量に変更するためのツールです。MP3Gainは、ピーク値を基準とする単純なノーマライズ処理ではなく、MP3ファイルの音が人間の耳にどれくらいの大きさで聞こえるのかを統計的分析によって測定します。

Audacity is a cross-platform multitrack audio editor. It allows you to record sounds directly or to import Ogg, WAV, AIFF, AU, IRCAM, or MP3 files. It features a few simple effects, all of the editing features you should need, and unlimited undo. The audio I/O uses PortAudio, which fully supports OSS, Mac OS X CoreAudio, and Windows WMME, and can be compiled with support for ALSA and Jack.

Snd is a sound editor modelled loosely after Emacs. It can accommodate any number of sounds, each with any number of channels. It can be customized and extended using Guile, Ruby, or Forth.

relax is a program designed for the study of the dynamics of proteins and other macromolecules though the analysis of experimental NMR data. It supports exponential curve fitting for the calculation of the R1 and R2 relaxation rates, calculation of the NOE, reduced spectral density mapping, the Lipari and Szabo model-free analysis, study of domain motions via the N-state model (or ensemble analysis) and frame order dynamics theories using anisotropic NMR parameters such as RDCs and PCSs, the investigation of stereochemistry in dynamic ensembles, and the analysis of relaxation dispersion.

Find Duplicate Music Files detects music files that contain the same music, even if the files are differently named, and are in different formats such as MP3, OGG, WAV, WMA, M4A, and RealAudio and contain different or non-existent meta-information such as ID3 tags. The program operates on whole directories of music files, analyzes them, and outputs the filenames of pairs that seem similar, based on their audio fingerprint or perceptual hash.

VGMToolboxは、C#ベースのVGMコレクター／ダンパーを支援するツールです。会計や検査ユーティリティと同様に、VGMフォーマットの展開、最適化、ビルドといった多くのツールを含みます。(GBR, GBS, KSS, MDX, NSF, NSFE, SID, S98, SPC, VGM, xSF (PSF/PSF2/etc))

LAMEは、MP3エンコーディングを学ぶための教育ツールです。LAMEプロジェクトのゴールは、MP3エンコーディングの速度と品質、心理的な音響の効果を改善することです。

SPTKは、UNIX環境用の音声信号処理ツールスイートです。LPC分析、PARCOR分析、LSP分析、PARCOR合成フィルタ、LSP合成フィルタ、ベクトル量子化技術、およびそれらの他の拡張版などで構成されます。

Freedup finds and eliminates duplicate files by linking them, and thus reduces the amount of used disk space within one or more file systems. By default, hardlinks are used on a single device, symbolic links when the devices differ. A set of options allows you to modify the methods of file comparison, the hash functions, the linking behavior, and the reporting style. You may use batch or interactive mode. Freedup usually only considers identical files, but when comparing audio or graphics files, you may elect to ignore the tags.

shntool is a multi-purpose WAVE data processing and reporting utility that supports various lossless audio formats. These include SHN (shorten), FLAC, AIFF (sox), APE (mac), OFR (OptimFROG), LPAC, WV (WavPack), ALAC, LA, TTA, TAK, MKW, MPEG-4 ALS, Bonk, and KXS (Kexis).

DRC generates digital room correction FIR filters to be used within HiFi systems in conjunction with real time convolution engines like BruteFIR.