A source device (100;200;400) for providing audio data (160;260;660;760;960) and video data (165;265;865;965) on one or more digital media interfaces (170;270), wherein the source device (100;200;400) is configured to automatically adjust a time alignment (150;250;350) between a provision of audio data (160;260;660;760;960) and a provision of video data (165;265;865;965) based on an information (110;210;310) about a latency of an audio path (180;280) and based on an information (120;220;320) about a latency of a video path (190;290) wherein the source device (100;200;400) is configured to determine the information (120;220;320) about the latency of the video path using a total video latency information describing a total latency of a video path for a first video mode or describing an average total latency of the video path over a plurality of video modes, a static latency information describing a contribution of the video rendering device (292;892;992) to the total video latency information, and a current video latency information of the video rendering device (292;892;992), if the total video latency information, the latency information describing a contribution of the video rendering device (292;892;992) to the total video latency information and the current video latency information of the video rendering device (292;892;992) is available to the source device (100;200;400) but some device-individual current video latency information is unavailable to the source device (100;200;400), and using a summation of device-individual current video latency information, if device-individual current video latency information is available to the source device (100;200;400) for the video rendering device (292;892;992) and all devices between the source device (100;200;400) and the video rendering device (292;892;992). wherein the source device (100;200;400) is configured to determine the information (120;220;320) about the latency of the video path using a total video latency information describing a total latency of a video path for a first video mode or describing an average total latency of the video path over a plurality of video modes, a static latency information describing a contribution of the video rendering device (292;892;992) to the total video latency information, and a current video latency information of the video rendering device (292;892;992), a total video latency information describing a total latency of a video path for a first video mode or describing an average total latency of the video path over a plurality of video modes, a static latency information describing a contribution of the video rendering device (292;892;992) to the total video latency information, and a current video latency information of the video rendering device (292;892;992), if the total video latency information, the latency information describing a contribution of the video rendering device (292;892;992) to the total video latency information and the current video latency information of the video rendering device (292;892;992) is available to the source device (100;200;400) but some device-individual current video latency information is unavailable to the source device (100;200;400), and using a summation of device-individual current video latency information, if device-individual current video latency information is available to the source device (100;200;400) for the video rendering device (292;892;992) and all devices between the source device (100;200;400) and the video rendering device (292;892;992).