Audio Stereo Panner
Apply stereo panning to position audio left or right in the stereo field. Perfect for placing instruments or vocals in the stereo mix. Use -1 for full left, 1 for full right.
Drop your audio file here
or click to browse
Complete Guide: Audio Stereo Panner
Everything you need to know about using this tool effectively
The Audio Stereo Panner adjusts the left-right positioning of audio in the stereo field. Move a voice to the left, shift a guitar to the right, or center an instrument that was recorded off to one side. Use a simple slider from -1 (full left) to 1 (full right) to place your audio exactly where you want it. All processing runs locally in your browser.
This tool uses the Web Audio API's StereoPannerNode to reposition audio in the stereo field. A value of -1 places audio fully in the left channel, 0 keeps it centered, and 1 places it fully in the right channel.
Mixing and Balancing Tracks
When combining multiple audio tracks, panning each element to a different position creates separation and clarity. Pan drums slightly left, bass center, and guitar right to build a wider, more defined mix.
Fixing Off-Center Recordings
If audio was accidentally recorded with a bias toward one channel - maybe the mic was angled or a cable was loose - use the panner to re-center it before using the file.
Dialogue Placement in Video
Position a speaker's voice to match their on-screen location. If a character is on the left side of the frame, panning their dialogue slightly left creates a more immersive viewing experience.
Creating Stereo Width From Mono Sources
Duplicate a mono recording, pan one copy left and the other right with slight variation, and merge them. This is a common technique for creating a wider stereo image from a single source.
Podcast Multi-Speaker Positioning
In two-person podcasts, panning one host slightly left and the other slightly right helps listeners distinguish between speakers without drastic separation.
Sound Design and Effects
Pan sound effects to match their intended direction. A car passing by should move from one side to the other, and environmental sounds can be spread across the stereo field for realism.
Upload Your Audio File
Click the upload area or drag and drop an audio file (MP3, WAV, OGG, FLAC, etc.) into the tool. Both mono and stereo files are supported.
Set the Pan Position
Use the panning control to position the audio in the stereo field. Move toward -1 for full left, 0 for center, or 1 for full right. Fine adjustments let you place audio precisely.
Preview the Panned Audio
Play back the processed audio with headphones to clearly hear the stereo position. Headphones give the most accurate sense of left-right placement.
Adjust as Needed
If the positioning does not sound right, move the pan slider and preview again. Small adjustments often make a bigger difference than you expect.
Download the Result
Save the panned audio as a WAV file. Import it into your project, DAW, or video editor with the stereo positioning baked in.
Use headphones for the most accurate picture of where audio sits in the stereo field - room acoustics affect monitor playback
Positions between -0.5 and 0.5 usually create enough separation without making the mix feel lopsided
Keep bass-heavy audio at or near center (0) - panning bass to one side creates an unbalanced listening experience
When panning audio for video, align the sound position with the visual source on screen
Pan similar-sounding instruments or voices to opposite sides to prevent them from competing in the mix
Test on multiple playback devices after panning to make sure the audio sounds good across different setups
What does panning audio mean?
Panning controls the left-right position of a sound in the stereo field. A pan value of -1 places the audio entirely in the left channel, 0 keeps it centered, and 1 puts it entirely in the right channel.
Can I pan a mono file?
Yes. When you pan a mono file, the tool positions the single channel toward the left or right in a stereo output. This is a standard way to place mono recordings in a stereo mix.
Will panning reduce the volume of my audio?
Panning to one side concentrates the audio in that channel. The perceived overall loudness may decrease slightly at extreme pan positions since one ear receives more sound than the other, but the actual signal level is preserved.
Is my file uploaded to a server?
No. The panning is applied entirely in your browser using the Web Audio API. Your audio stays on your device throughout the entire process.
What is the difference between panning and stereo balance?
Panning moves the entire audio signal toward one side. Stereo balance adjusts the relative volume of existing left and right channels. For a mono source they produce similar results, but for stereo content the behavior is different.
What audio formats can I use with this tool?
The tool supports any format your browser can decode, including MP3, WAV, OGG, FLAC, AAC, and WebM. The processed output is saved as an uncompressed WAV file.