Question 1

How do I swap the left and right audio channels?

Accepted Answer

Drag one stereo audio file into the tool or select it from your device, then press Swap channels. The tool creates a new file in which the left channel plays on the right and the right channel plays on the left. It processes one file at a time.

Question 2

What exactly happens to the audio samples?

Accepted Answer

The converter processes the stereo samples in pairs. For every frame, the left sample and right sample exchange positions. It does not combine the channels or select only one side.

Question 3

Which audio formats can I use?

Accepted Answer

The tool accepts: FLAC; WAV; MP3; OGG, OGA, and Opus; AAC; M4A; The file must contain an audio track that the browser can decode.

Question 4

Can I use a mono or multichannel file?

Accepted Answer

No. The primary audio track must contain exactly two channels. Mono files and files with more than two channels are rejected because they do not have one standard left-and-right stereo pair to exchange.

Question 5

Does swapping the channels change the volume?

Accepted Answer

The swap operation does not apply gain, normalization, or volume adjustment. Each decoded sample value is moved to the opposite channel without being deliberately made louder or quieter. Lossy re-encoding can still introduce small encoding differences.

Question 6

Does it reverse polarity or fix phase problems?

Accepted Answer

No. The tool exchanges the left and right channels, but it does not invert either waveform or change its polarity. It is intended for reversed channel placement, not phase correction.

Question 7

Does the tool change the sample rate or duration?

Accepted Answer

The tool does not request a new sample rate, trim range, or playback speed. It retains the decoded sample rate and timing while exchanging the channels. Encoder compatibility may require parameters supported by the browser, but the page provides no controls for changing them.

Question 8

Is the audio re-encoded?

Accepted Answer

Yes. The channel swap is performed on decoded audio samples, which forces the output audio to be encoded again. The tool does not use a direct metadata-only or packet-copy operation.

Question 9

Does the output keep the same format and codec?

Accepted Answer

The output follows the detected input format category, but some formats use a standardized output codec: FLAC is encoded as FLAC. WAV is written as 16-bit signed PCM. MP3 is encoded as MP3. AAC remains raw AAC. M4A contains AAC audio. OGG output contains Opus, including when the input contained Vorbis. Files uploaded with.oga or.opus extensions are downloaded as OGG output.

Question 10

Will a WAV file retain its original bit depth?

Accepted Answer

Not necessarily. WAV output uses 16-bit signed PCM. A 24-bit, 32-bit integer, or 32-bit floating-point WAV is therefore converted to 16-bit during the channel swap. A source that already uses compatible 16-bit PCM remains 16-bit.

Question 11

Does swapping channels reduce audio quality?

Accepted Answer

For MP3, AAC, M4A, and OGG, the audio is re-encoded with a lossy codec, so another encoding generation can change the audio. FLAC output remains losslessly encoded. WAV remains uncompressed, although higher-depth WAV input is reduced to 16-bit.

Question 12

What bitrate is used for lossy output?

Accepted Answer

The converter uses its current high-quality encoding defaults: MP3 targets 320 kbps. AAC and M4A target 192 kbps. OGG with Opus targets 128 kbps. The page does not provide a bitrate control. The resulting average bitrate can differ from the target.

Question 13

Will the output have the same file size?

Accepted Answer

Not necessarily. The output is re-encoded, so its size depends on the source format, duration, metadata, output codec, and encoding settings. Higher- or lower-bitrate source files can therefore produce larger or smaller results.

Question 14

What happens to the file’s metadata?

Accepted Answer

The converter passes source metadata to the output writer. Metadata fields supported by the output format can be retained, but specialized or unsupported fields may not survive the conversion.

Question 15

Can I swap the channels twice to restore their original positions?

Accepted Answer

Swapping twice returns the left and right samples to their original sides. However, each operation forces another encoding pass. Using the original file is preferable, especially for MP3, AAC, M4A, or OGG, because repeated lossy encoding can reduce quality.

Question 16

Why can’t the tool process my file?

Accepted Answer

The file may not contain exactly two channels, may be damaged, may not contain an audio track, or may use a codec the browser cannot decode or encode. Confirm that the file is genuinely stereo and plays correctly in another application before trying again.

Swap stereo channels

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