Batch Audio Volume Adjustment Tool

Increase, decrease, and normalize audio volume online. Supports fixed dB adjustments and LUFS loudness normalization, with batch processing for multiple audio files.

Bug report

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

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If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

Return to old version

A desktop version is available with more powerful, stable features. Open desktop version

Select audio and set a volume target before processing. All batch files will be processed; only the first 20 are shown for review. Output names use original names by default; duplicates get numbers automatically.

Waiting for local transcoding core

Choose Audio File

Supports common formats such as MP3, WAV, FLAC, AAC, M4A, OGG, OPUS, WMA, AIFF, AMR, and CAF.

Click to choose audio, or drag files here Confirm files first, then set parameters; process large files in batches.

Set parameters first, then start processing.

File Review

Only the first 20 files are shown. Processing and ZIP download include all files.

File count

0 KB

Total size

Shown

Not Shown

Select audio files or load a sample to view the workflow.

Volume Adjustment Method

Fixed dB is for simple boosts or cuts, LUFS unifies perceived loudness across clips, and Peak controls the maximum level.

Gain Amount

+3.0 dB

目标响度

LUFS

True peak limit

dBTP

Loudness range

Second analysisAnalyze first, then write settings. Best for file processing. Estimate mono as stereoEnable for voice based on playback use

Target peak

dBFS

Processing Method

Output & download settings

Output format affects file size and compatibility. WAV/FLAC files are usually larger.

Output format

MP3 Encoding Mode

Audio Bitrate

MP3 VBR Quality

WAV Encoding

FLAC Compression Level

Sample Rate

Channels

ZIP file name

Keep Audio TagsKeep title, artist, album, and other info when possible Peak protectionAdd limiter in fixed gain and peak modes ZIP compressionUse compression for download package Generate reportRecord settings, results, and failure reasons

Process & Download

Confirm files and settings, then start processing. Multiple results are saved to a ZIP automatically. The first 20 can be previewed.

Pending0

ModeFixed dB

Output formatMP3

Result count0

Set parameters first, then start processing.

Instructions

Software Usage Instructions

Select audio files: Click the “Select Audio” area and choose the files whose volume you want to adjust. Common formats such as MP3, WAV, FLAC, AAC, M4A, OGG, OPUS, WMA, and AIFF are supported, and you can select multiple files at once.
Confirm the file list: When uploading multiple files, the interface displays only the first 20 files for checking, but all selected files will be included during processing and download.
Select a volume processing method:
- Fixed dB increase/decrease: Uniformly increases or decreases volume by the specified dB value, suitable for simple volume correction.
- LUFS loudness normalization: Processes audio based on target loudness, true peak limit, and loudness range, suitable for making the perceived volume of multiple audio segments consistent.
- Peak normalization: Analyzes the audio peak and adjusts it to the target dBFS, suitable for controlling the output peak level.
Set output parameters: Choose the output format, bitrate, sample rate, and channels, and enable options such as preserving audio tags, peak protection, and generating a processing report as needed.
Save settings: Click “Save Settings” to keep the current parameters so they can be reused next time.
Start processing: After entering the “Process & Download” page, click “Start Adjusting Volume” and wait for the progress to complete.
Preview and download: After processing is complete, you can preview the first 20 results and click “Download All Results ZIP” to download them as a package. Output file names use the original file names by default; if duplicates occur, numbers are automatically added to distinguish them.

Frequently Asked Questions

A: Fixed dB increase/decrease directly amplifies or lowers the volume by the same dB value, which is suitable for quick correction. LUFS loudness normalization analyzes the audio loudness and adjusts it to a target value, making it more suitable for making multiple audio files sound similar in volume.

A: For common voice recordings, podcasts, and video narration, you can choose around -16 LUFS. For music or video platform material, you can choose around -14 LUFS. For broadcast TV material, you can process at around -23 LUFS. You can also adjust it according to the actual playback scenario.

A: If the original audio has high peaks, applying a large gain increase may cause clipping distortion. We recommend enabling peak protection, or using LUFS loudness normalization and setting a true peak limit.

A: Yes. Processed results use the original file names by default and replace them with the selected output format. If duplicate names occur, the system automatically adds a number to the file name to prevent overwriting.

A: Audio analysis and transcoding use CPU and memory. We recommend processing large numbers of files in batches, selecting fewer files at once, or choosing an output format such as MP3, M4A, or OGG and lowering the sample rate or bitrate.