BranchAudio
BranchAudio
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Audio Amplifier

Increase audio volume online without distortion. Preview before downloading.

Step 1 · Upload Audio

Step 2 · Amplification
Quiet 2× Loud
Step 3 · Preview
Step 4 · Download

📘 How to Use

  1. Upload your audio file
    Choose an MP3, WAV, or other supported audio file (up to 50 MB) to begin amplifying the sound.
  2. Adjust amplification level
    Use the volume slider to increase or decrease loudness safely without distorting the audio.
  3. Generate a preview
    Click Generate Preview to listen to the amplified audio before downloading.
  4. Fine-tune if needed
    Lower or raise the amplification level until the audio sounds clear and balanced.
  5. Download amplified audio
    Download your amplified file instantly in high-quality WAV or MP3 format.

❓ FAQs

No. Audio files are processed temporarily and automatically deleted. BranchAudio does not store or share your audio.

The audio amplifier supports common formats such as MP3 and WAV, making it suitable for music, podcasts, voice recordings, and videos.

Yes. The audio amplifier is fully optimized for mobile phones and tablets and works directly in your browser.

Excessive amplification can cause distortion. Use moderate amplification levels and preview the audio to ensure clarity.

The maximum supported file size is 50 MB to ensure fast and reliable processing on all devices.

Audio Amplifier Guide

This guide explains when and how to use audio amplification effectively. Whether you're fixing quiet recordings, preparing audio for editing, or improving clarity for review, the sections below cover common scenarios, best practices, and technical considerations to help you get clean results without distortion.

Common use cases

  1. Podcast editors fixing quiet guest recordings before mixing.
  2. Video creators boosting voice tracks to match music or effects.
  3. Musicians increasing level of a dry vocal or instrument stem for easier monitoring.
  4. Journalists and field recordists quickly raising level for review and archiving.

Quick tips

  • Preview before downloading — always listen to ensure there’s no unwanted clipping or harshness.
  • Avoid extreme gain — apply moderate amplification, then use a limiter or normalization step if needed.
  • Start from the highest-quality source available — amplifying a WAV made from the original master preserves more detail than amplifying a heavily-compressed MP3.

Technical note

BranchAudio applies gain to decoded PCM samples and writes the result as WAV or MP3 depending on the chosen export. When exporting WAV we typically use 16-bit or 24-bit PCM to preserve headroom; when exporting MP3 we re-encode with sensible bitrate defaults to balance size and quality. Note that amplification cannot restore information removed by lossy compression — it simply raises the existing waveform.

Privacy & performance

Files are processed temporarily on our servers and removed after conversion to protect your privacy. Server-side processing ensures even low-powered devices can create amplified outputs quickly and consistently while giving us the ability to add safety limits (for example, preventing excessive clipping) and fast previews.

Need more control?

If you’d like advanced options — such as a built-in limiter, normalisation to target LUFS, custom gain staging, or batch processing for multiple files — we can add presets or an advanced panel. Tell us which presets (e.g., "Podcast -16 LUFS", "Broadcast -23 LUFS", "No limiter, keep dynamics") you'd prefer and we’ll prepare implementation suggestions.