In the field of audio recording and reproduction (RL), determining the correct placement of speakers for optimal stereo sound is crucial. The concept of "Which Left and Right" refers to the proper orientation of audio channels in a stereo system. According to industry standards and empirical data, the left channel should be positioned to the left of the listener, while the right channel should be to the right. This setup ensures that sound sources are localized correctly, enhancing the immersive experience.

The rationale behind this configuration is rooted in the way humans perceive sound. Our ears are positioned laterally, and our brain uses the differences in sound arrival time and intensity between the left and right ears to determine the direction of sound. By placing the left speaker on the left and the right speaker on the right, the audio system mimics the natural way we hear, leading to a more realistic and enveloping soundstage. Studies have shown that listeners perceive spatial cues more accurately when the speakers are aligned with the ears' natural orientation.

For instance, a study by the Audio Engineering Society (AES) found that listeners could accurately identify the direction of sound sources when the speakers were positioned according to the left and right convention. Additionally, a survey conducted by the Home Theater Review found that 92% of respondents preferred a stereo setup with speakers placed on either side of the listener, further supporting the effectiveness of this configuration.

In conclusion, the placement of speakers in a stereo system should follow the left and right convention to ensure accurate spatial localization and an immersive listening experience. This setup is based on auditory perception and is supported by empirical evidence from industry studies and listener preferences.