"Audio files can be recorded sounds. An audio file can be created by recording sound directly into the system. For example, a user may use a guitar to record directly onto a guitar track or record vocals, using a microphone, directly onto a vocal track. As will be appreciated by those of ordinary skill in the art, audio files can be imported into a musical arrangement. For example, many companies professionally produce audio files for incorporation into musical arrangements. In another example, audio files can be downloaded from the Internet. Audio files can include guitar riffs, drum loops, and any other recorded sounds. Audio files can be in sound digital file formats such as WAV, MP3, M4A, and AIFF. Audio files can also be recorded from analog sources, including, but not limited to, tapes and records.
"Manipulation of audio files often requires detecting transients. A transient is a short-duration signal that represents a non-harmonic attack phase of a musical sound or vocals. A transient contains a high degree of non-periodic components and a higher magnitude of high frequencies than the harmonic content of that sound. A common method of detecting transient events is to subtract the envelope amplitude of the audio signal from the Root Mean Squared (RMS) value at the time of the signal. Differences can be an indication for a transient event. However, this method has disadvantages in that the initial calculation of RMS and RMS in silent passages can lead to a significant number of false detections. Those of ordinary skill in the art would recognize that other conventional methods for detecting transients can lead to a significant number of false detections."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventors' summary information for this patent: "As introduced above, users may desire to detect and adjust transients of audio tracks in a digital audio workstation. Therefore, processor implemented methods, systems, and computer-readable media for detecting transients in an audio file are disclosed. The method includes dividing the audio file into segments. Transients can be detected both in a full band signal of the audio file and one or more band-pass filtered signals of the audio file. A weight value is assigned to each transient detected in both the full band signal and band-pass filtered signals. Transients that are below a predetermined threshold value can be eliminated. The time position of each remaining transient is determined and displayed in the audio file.
"Many other aspects and examples will become apparent from the following disclosure."
URL and more information on this patent, see: Gehring,
Keywords for this news article include: Software,
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