CN1964187B - 音量管理***、方法及装置 - Google Patents
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Abstract
本发明提供了一种音量管理方法,包括步骤:获取一音频文件所属的音乐类型;读取一设定表获得该音乐类型的设定增益值;解码该音频文件获得一数字音频信号;将该数字音频信号转换为一模拟音频信号;及根据该设定增益值放大并输出该模拟音频信号。其中,在播放一歌曲时,如果当前增益值被调节,则根据调节后的增益值及该歌曲所属的音乐类型的设定增益值,计算出一综合增益值,并用该综合增益值更新该音乐类型的设定增益值。本发明使得听众能够始终在最适合自己听觉的音量级下欣赏不同类型的音乐,避免不必要的手动调节音量的步骤。
Description
【技术领域】
本发明涉及一种音量管理***及方法,特别涉及一种根据当前播放音乐的音乐类型自动调节音量的***及方法。
【背景技术】
现代社会中,人们的工作及生活节奏日益加快,使得压力增大、心情烦躁。为了缓解压力,舒缓烦躁的心情,人们常常在工作、乘车以及小憩时欣赏音乐,音乐成为人们不可或缺的伴侣。
每一音频文件可以包括一标签(例如MP3文件的标签被称为ID3),该标签中可存储有该音频文档的标题、演唱(奏)者、作曲(词)者、歌词、音乐类型等。上述音乐类型包括摇滚、爵士、乡村、古典等。
不同类型的音频文档(如摇滚、乡村)的输出信号具有不同的振幅、音调及频率,这种差异使得不同类型的音频文件在不同音量下播放,才能让听众享受到最佳的听觉效果。然而目前市场上的音频播放器均不具备上述功能。故,听众如果希望享受到不同类型音乐的最佳听觉效果,就需要手动调节音量。
【发明内容】
有鉴于此,有必要提供一种音量管理方法,用于管理一音频处理装置输出音乐时的音量,包括步骤:获取一音频文件所属的音乐类型;读取一设定表获得该音乐类型的设定增益值;解码该音频文件获得一数字音频信号;将该数字音频信号转换为一模拟音频信号;及根据该设定增益值放大并输出该模拟音频信号。
有鉴于此,还有必要提供一种音量管理***,包括一音量控制单元及一音量管理单元。该音量管理单元包括一设定表、一类型识别模块及一获取模块。该设定表,存储有多个音乐类型及每一音乐类型的设定增益值。该类型识别模块,用于获取一音频文件所属的音乐类型。该获取模块,读取该设定表中该音乐类型的设定增益值,并将该设定 增益值发送到该音量控制单元。其中,该音量控制单元根据该设定增益值放大并输出该音频文件被解码并经过数模转换后生成的模拟音频信号。
有鉴于此,还有必要提供一种自动调节音量的音频处理装置,其包括一中央处理单元、一存储单元、一解码单元、一数模转换器及一音量控制单元。该存储单元存储有多个音频文档及一设定表,该设定表存储有多个音乐类型及每一音乐类型的设定增益值。该解码单元响应该中央处理单元发送的请求播放音乐的命令信号,从该存储单元读取并解码一音频文件,生成一数字音频信号。该数模转换器将该数字音频信号转换为模拟音频信号。该音频处理装置还包括一音量管理单元,用于确定当前被输出的音频信号所属的音乐类型,然后读取该设定表获得该音乐类型的设定增益值,并将该设定增益值发送到该音量控制单元。该解码单元解码该音频文件生成一数字音频信号。该数模转换器将该数字音频信号转换成一模拟音频信号。该音量控制单元根据该设定增益值放大并输出该模拟音频信号。
相较于现有技术,所述音量管理***及方法,使得音频处理装置在输出音频文档时能够首先确定该音频文档所属的音乐类型,从而选择该类型的设定增益值输出音乐;使得听众能够始终在最适合自己听觉的音量级下欣赏不同类型的音乐,避免不必要的手动调节音量的步骤。下面将结合附图对本发明的实施方式进行说明。
【附图说明】
图1是实施方式中本发明的音频处理装置的架构图。
图2是实施方式中本发明的音量管理单元的模块图。
图3是实施方式中本发明的自动调节增益值的流程图。
图4是实施方式中本发明的更新一音乐类型的设定增益值的流程图。
【具体实施方式】
本发明提供的音量管理***及方法可用于许多电子设备的音频处理装置中,该电子设备可为汽车音响、家庭影院、音频播放器、电子书等,本实施方式列举音频播放器的音频处理装置进行介绍。
如图1所示是本实施方式中该音频处理装置的架构图。该音频处理装置10包括一中央处理单元11、一存储单元12、一解码单元13、一数模转换器14、一音量控制单元15、一音频输出装置16、一音量管理单元17及一输入单元18。
该存储单元12存储有多个音频文件、解码程序及一设定表。该设定表中存储有多个音乐类型及每一音乐类型的设定增益值。其中,该设定表中存储的多个音乐类型可在生产过程中设定,也可由该音频处理装置10在输出音频信号的过程中自动设定。该音乐类型包括摇滚、爵士、乡村、古典等。
该输入单元18响应听众的操作,产生一请求播放音乐的命令信号。该中央处理单元11接收并识别该命令信号,产生一相应的控制信号。该解码单元13响应该控制信号从该存储单元12读取一音频文件,运行上述解码程序解码该音频文件产生一数字音频信号,然后将该数字音频信号传送至该数模转换器14。该音量管理单元17响应该中央处理单元11发送的上述控制信号,获取该音频文件所属的音乐类型,然后读取上述设定表获得该音乐类型的设定增益值,并将该设定增益值发送到该音量控制单元15。该音量控制单元15在该中央处理单元11的控制下,根据该设定增益值放大该数模转换器14输入的模拟音频信号。并将放大后的模拟音频信号传送到该音频输出装置16。该音频输出装置16输出该放大后的模拟音频信号对应的声音。该音频输出装置16可为一耳机或一扬声器。
该音量管理单元17还用于当该设定表中不存在一音乐类型时,在该设定表中添加该音乐类型,并从该音量控制单元15获取当前增益值,将该当前增益值添加到该设定表中作为该音乐类型的设定增益值。
该音量管理单元17还用于当该设定表中不存在一音乐类型的设定增益值时,从该音量控制单元15获取当前增益值,并将当前增益值添加到该设定表中作为该音乐类型的设定增益值。
在该音频处理装置10播放一音频文档时,如果当前增益值被调节,该音量控制单元15根据调节后的增益值放大该音频文件被解码及经过数模转换后生成的音频信号,该音量管理单元17则从该音量控制 单元15获取该调节后的增益值,根据该调节后的增益值及该音频文件所属的音乐类型的设定增益值,计算出一综合增益值,并用该综合增益值更新该音乐类型的设定增益值。其中,计算上述综合增益值可采用不同的算法,例如可采用加权算法。该加权算法具体可为,给该调节后的增益值设置较小的加权参数值,而给该设定增益值设置较大的加权参数值,然后计算出一加权增益值。
如图2所示是本实施方式中该音量管理单元的模块图。该音量管理单元17包括一类型识别模块170、一获取模块171、一计算模块172、一设定模块173及一添加模块174。
该类型识别模块170,用于获取一音频文件所属的音乐类型。该获取模块171,读取该设定表中该音乐类型的设定增益值,并将该设定增益值发送到该音量控制单元15;其中,该音量控制单元15根据该设定增益值放大并输出,该音频文件被解码及经过数模转换后生成的仿真音频信号。该计算模块172,用于在该音频处理装置10播放一音频文档时,如果当前增益值被调节,则从该音量控制单元15获取调节后的增益值,并根据该调节后的增益值及该音频文件所属的音乐类型的设定增益值,计算出一综合增益值。该设定模块173,用该综合增益值更新该音乐类型的设定增益值。
该添加模块174,用于当该设定表中不存在一音乐类型时,则将该音乐类型添加到该设定表中,并从该音量控制单元15获取当前增益值,将当前增益值添加到该设定表中作为该音乐类型的设定增益值;该添加模块174,还用于当该设定表中不存在一音乐类型的设定增益值时,则从该音量控制单元15获取当前增益值,并将当前增益值添加到该设定表中作为该音乐类型的设定增益值。
如图3所示是本实施方式中在播放一音频文档时自动调节增益值的流程图。该输入单元18响应听众的操作,生成一请求播放音乐的命令信号,该中央处理单元11接收并识别该命令信号,然后向该解码单元13及该音量管理单元17分别发送一控制信号,该解码单元13响应该控制信号从该存储单元12读取一音频文档(步骤S30)。该音量管理单元17获取该音频文件所属的音乐类型(步骤S31),然后读取该设定 表(步骤S32),并确定该设定表中是否存在该音乐类型的设定增益值(步骤S33)?如果该设定表中存在该音乐类型,则进一步确定该设定表中是否存在该音乐类型的设定增益值(步骤S34)?如果该设定表中存在该音乐类型的设定增益值,该音量管理单元17则从该设定表中读取该音乐类型的设定增益值,并将该设定增益值传送到该音量控制单元15(步骤S35)。该音量控制单元15根据该设定增益值放大该数模转换器14输入的模拟音频信号,该模拟音频信号为该音频文件被解码及经过数模转换后生成的音频信号(步骤S36)。
在步骤S33,如果该设定表中不存在该音乐类型,该音量管理单元17则在该设定表中添加该音乐类型(步骤S37),并从该音量控制单元15获取当前增益值(步骤S38),然后将当前增益值存储于该设定表中作为该音乐类型的设定增益值,并将该设定增益值传送到该音量控制单元15(步骤S39)。该音量控制单元15根据该设定增益值放大该数模转换器14输入的模拟音频信号(步骤S36)。
在步骤S34,如果该设定表中不存在该音乐类型的设定增益值,该音量管理单元17则从该音量控制单元15获取当前增益值(步骤S38),然后将当前增益值存储于该设定表中作为该音乐类型的设定增益值,并将该设定增益值传送到该音量控制单元15(步骤S39)。该音量控制单元15根据该设定增益值放大该数模转换器14输入的模拟音频信号(步骤S36)。
如图4所示是本实施方式中更新一音频文件所属的音乐类型的设定增益值的流程图。在该音频处理装置10播放一音频文档时,该中央处理单元11实时地侦测并识别该输入单元18发送的请求播放音乐的命令信号,藉此确定当前增益值是否被调节(步骤S40)。如果当前增益值未被调节,该音量控制单元15则继续根据当前增益值放大该数模转换器14输入的模拟音频信号(步骤S41);如果当前增益值被调节,该中央处理单元11则向该音量管理单元17及该音量控制单元15分别发送一控制信号,该音量控制单元15响应该控制信号从而调节当前增益值,并根据调节后的增益值放大该数模转换器14输入的模拟音频信号(步骤S42)。该音量管理单元17响应该中央处理单元11发送的控制信 号,从该音量控制单元15获取上述调节后的增益值(步骤S43)。该音量管理单元17根据该调节后的增益值及上述音频文件所属的音乐类型的设定增益值,计算出一综合增益值(步骤S44),然后用该综合增益值更新该音乐类型的设定增益值(步骤S45)。
Claims (12)
1.一种音量管理方法,用于管理一音频处理装置输出音乐时的音量,其特征在于,包括步骤:
获取一音频文件所属的音乐类型;
读取一设定表获得该音乐类型的设定增益值;
解码该音频文件获得一数字音频信号;
将该数字音频信号转换为一模拟音频信号;及
根据该设定增益值放大并输出该模拟音频信号。
2.如权利要求1所述的音量管理方法,其特征在于,还包括步骤:在播放一音频文档时,如果当前增益值被调节,则根据调节后的增益值放大该音频文档对应的模拟音频信号,并根据该调节后的增益值及该音频文件所属的音乐类型的设定增益值,计算出一综合增益值,并用该综合增益值更新该音乐类型的设定增益值。
3.如权利要求1所述的音量管理方法,其特征在于,还包括步骤:如果该设定表中不存在该获取的音频文件所属的音乐类型,则在该设定表中添加该音乐类型,并获取当前增益值,将该当前增益值添加到该设定表中作为该音乐类型的设定增益值。
4.如权利要求1所述的音量管理方法,其特征在于,还包括步骤:如果该设定表中不存在该获取的音频文件所属的音乐类型的设定增益值,则获取当前增益值,将该当前增益值添加到该设定表中作为该音乐类型的设定增益值。
5.一种音量管理***,包括一音量控制单元及一音量管理单元,其特征在于,该音量管理单元包括:
一设定表,存储有多个音乐类型及每一音乐类型的设定增益值;
一类型识别模块,用于获取一音频文件所属的音乐类型;及
一获取模块,读取该设定表中该音乐类型的设定增益值,并将该设定增益值发送到该音量控制单元;
其中,该音量控制单元根据该设定增益值放大并输出该音频文件被解码并经过数模转换后生成的模拟音频信号。
6.如权利要求5所述的音量管理***,其特征在于,该音量管理单元还包括一计算模块及一设定模块;该计算模块,用于在播放一音频文档时,如果当前增益值被调节,则根据该调节后的增益值及该音频文件所属的音乐类型的设定增益值,计算出一综合增益值;该设定模块,用该综合增益值更新该音乐类型的设定增益值。
7.如权利要求5所述的音量管理***,其特征在于,还包括一添加模块,用于当该设定表中不存在该获取的音频文件所属的音乐类型时,则将该音乐类型添加到该设定表中,并从该音量控制单元获取当前增益值,将该当前增益值添加到该设定表中作为该音乐类型的设定增益值。
8.如权利要求7所述的音量管理***,其特征在于,该添加模块,还用于当该设定表中不存在该获取的音频文件所属的音乐类型的设定增益值时,则从该音量控制单元获取当前增益值,并将该当前增益值添加到该设定表中作为该音乐类型的设定增益值。
9.一种自动调节音量的音频处理装置,其包括一中央处理单元、一存储单元、一解码单元、一数模转换器及一音量控制单元;该存储单元存储有多个音频文档;该解码单元响应该中央处理单元发送的请求播放音乐的命令信号,从该存储单元读取并解码一音频文件,生成一数字音频信号;该数模转换器将该数字音频信号转换为模拟音频信号;该音量控制单元放大该模拟音频信号;其特征在于:
该存储单元存储有一设定表,该设定表存储有多个音乐类型及每一音乐类型的设定增益值;
该音频处理装置还包括一音量管理单元,用于获取一音频文件所属的音乐类型,然后读取该设定表获得该音乐类型的设定增益值,并将该设定增益值发送到该音量控制单元;
该解码单元解码该音频文件生成一数字音频信号;
该数模转换器将该数字音频信号转换成一模拟音频信号;及
该音量控制单元根据该设定增益值放大并输出该模拟音频信号。
10.如权利要求9所述的自动调节音量的音频处理装置,其特征在于,在播放一音频文档时,如果当前增益值被调节,该音量控制单元根据调节后的增益值放大并输出该音频文档对应的模拟音频信号,该音量管理单元则从该音量控制单元获取该调节后的增益值,根据该调节后的增益值及该音频文件所属的音乐类型的设定增益值,计算出一综合增益值,并用该综合增益值更新该音乐类型的设定增益值。
11.如权利要求9所述的自动调节音量的音频处理装置,其特征在于,如果该设定表中不存在该获取的音频文件所属的音乐类型,该音量管理单元则在该设定表中添加该音乐类型,并从该音量控制单元获取当前增益值,将该当前增益值添加到该设定表中作为该音乐类型的设定增益值。
12.如权利要求9所述的自动调节音量的音频处理装置,其特征在于,如果该设定表中不存在该获取的音频文件所属的音乐类型的设定增益值,该音量管理单元从该音量控制单元获取当前增益值,并将该当前增益值添加到该设定表中作为该音乐类型的设定增益值。
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US8019094B2 (en) | 2011-09-13 |
US20070110260A1 (en) | 2007-05-17 |
CN1964187A (zh) | 2007-05-16 |
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