-
公开(公告)号：US08401683B2
公开(公告)日：2013-03-19
申请号：US12551389
申请日：2009-08-31
IPC分类号： G06F17/00
CPC分类号： G10H1/40 , G10H2210/076 , G10L25/48
摘要： Among other things, techniques and systems are disclosed for detecting onsets. On a device, an audio signal is pre-processed in temporal domain. The pre-processed audio signal is smoothed on the device. A predetermined quantity of peaks is selectively identified in the pre-processed and smoothed audio signal based on a size of a sample window applied to the pre-processed and smoothed audio signal.
摘要翻译： 除其他之外，公开了用于检测onsets的技术和系统。 在设备上，音频信号在时域被预先处理。 预处理的音频信号在设备上平滑。 基于应用于预处理和平滑的音频信号的样本窗口的大小，在预处理和平滑的音频信号中选择性地识别预定量的峰值。
-
公开(公告)号：US08983082B2
公开(公告)日：2015-03-17
申请号：US12760522
申请日：2010-04-14
CPC分类号： H04R5/027 , G10H1/368 , G10H1/40 , G10H2210/076 , H04S2400/15
摘要： Among other things, techniques and systems are disclosed for detecting musical structures, such as downbeats. In one aspect, a method performed by a data processing device includes receiving an input audio signal. The method includes detecting a meter in the received audio signal. Detecting the meter includes generating an envelope of the received audio signal; generating an autocorrelation phase matrix having a two-dimensional array based on the generated envelope to identify a dominant periodicity in the received audio signal; and filtering both dimensions of the generated autocorrelation phase matrix to enhance peaks in the two-dimensional array. The meter represents a time signature of the input audio signal having multiple beats. Additionally, the method includes identifying a downbeat as a first beat in the detected meter.
摘要翻译： 除其他之外，公开了用于检测音乐结构的技术和系统，例如低音。 一方面，由数据处理装置执行的方法包括接收输入音频信号。 该方法包括检测所接收的音频信号中的仪表。 检测仪表包括产生所接收的音频信号的包络; 基于所生成的包络生成具有二维阵列的自相关相位矩阵，以识别所接收的音频信号中的主要周期; 并且对所生成的自相关矩阵的二维进行滤波以增强二维阵列中的峰值。 仪表表示具有多个节拍的输入音频信号的时间签名。 另外，该方法包括将检测到的计量器中的跳动识别为第一搏动。
-
公开(公告)号：US20110255700A1
公开(公告)日：2011-10-20
申请号：US12760522
申请日：2010-04-14
IPC分类号： H04R29/00
CPC分类号： H04R5/027 , G10H1/368 , G10H1/40 , G10H2210/076 , H04S2400/15
摘要： Among other things, techniques and systems are disclosed for detecting musical structures, such as downbeats. In one aspect, a method performed by a data processing device includes receiving an input audio signal. The method includes detecting a meter in the received audio signal. Detecting the meter includes generating an envelope of the received audio signal; generating an autocorrelation phase matrix having a two-dimensional array based on the generated envelope to identify a dominant periodicity in the received audio signal; and filtering both dimensions of the generated autocorrelation phase matrix to enhance peaks in the two-dimensional array. The meter represents a time signature of the input audio signal having multiple beats. Additionally, the method includes identifying a downbeat as a first beat in the detected meter.
摘要翻译： 除其他之外，公开了用于检测音乐结构的技术和系统，例如低音。 一方面，由数据处理装置执行的方法包括接收输入音频信号。 该方法包括检测所接收的音频信号中的仪表。 检测仪表包括产生所接收的音频信号的包络; 基于所生成的包络生成具有二维阵列的自相关相位矩阵，以识别所接收的音频信号中的主要周期; 并且对所生成的自相关矩阵的二维进行滤波以增强二维阵列中的峰值。 仪表表示具有多个节拍的输入音频信号的时间签名。 另外，该方法包括将检测到的计量器中的跳动识别为第一搏动。
-
公开(公告)号：US20110054648A1
公开(公告)日：2011-03-03
申请号：US12551389
申请日：2009-08-31
IPC分类号： G06F17/00
CPC分类号： G10H1/40 , G10H2210/076 , G10L25/48
摘要： Among other things, techniques and systems are disclosed for detecting onsets. On a device, an audio signal is pre-processed in temporal domain. The pre-processed audio signal is smoothed on the device. A predetermined quantity of peaks is selectively identified in the pre-processed and smoothed audio signal based on a size of a sample window applied to the pre-processed and smoothed audio signal.
摘要翻译： 除其他之外，公开了用于检测onsets的技术和系统。 在设备上，音频信号在时域被预先处理。 预处理的音频信号在设备上平滑。 基于应用于预处理和平滑的音频信号的样本窗口的大小，在预处理和平滑的音频信号中选择性地识别预定量的峰值。
-
公开(公告)号：US20120297304A1
公开(公告)日：2012-11-22
申请号：US13109961
申请日：2011-05-17
申请人： Cynthia Maxwell
发明人： Cynthia Maxwell
CPC分类号： H04M1/72569 , H04M2250/12
摘要： An adaptive operating system is described that adjusts a set of applications and/or a set of application icons presented on a user interface based on ambient noise and/or ambient light conditions at the mobile device. In some implementations, a sensor on a mobile device can detect the amount of ambient noise and/or light at the mobile device and adjust the presentation of sound-related and/or light-related applications or application icons on a graphical interface of the mobile device. In some implementations, a set of applications and/or a set of application icons presented on a user interface can be adjusted based on movement of the mobile device detected by a motion sensor of the mobile device.
摘要翻译： 描述了一种自适应操作系统，其基于在移动设备处的环境噪声和/或环境光条件来调整呈现在用户界面上的一组应用和/或一组应用图标。 在一些实施方式中，移动设备上的传感器可以检测移动设备处的环境噪声和/或光的量，并且调整与移动设备的图形界面上的声音相关和/或光相关应用或应用图标的呈现 设备。 在一些实现中，可以基于由移动设备的运动传感器检测到的移动设备的移动来调整呈现在用户界面上的一组应用和/或一组应用图标。
-
-
-
-
搜索结果
5 条记录 (耗时 0.02 秒)
