What Is the Sample Rate
The sample rate refers to the number of times per second that sound information and details are sampled. It is usually expressed in Hz. For example, 8 kHz means 8,000 samples per second. The most common audio sample rates are 44.1 kHz (the standard sample rate) and 48 kHz (the professional sample rate).
How Sample Rate Affects Audio Size
The higher the number of sound samples collected, the higher the quality of the digital audio. However, it should be noted that more sound details bring a larger file size.
When it comes to factors that affect audio file size, bitrate, codec, and channels are often taken into consideration. In fact, the sample rate affects audio size as well. Changing the sample rate is a very effective way to reduce the audio size.
How to Adjust Sample Rate to Reduce Audio Size with Top 2 Tools
Want to reduce the audio size? We can do that by changing the sample rate of the audio files. To facilitate your conversion tasks, I want to recommend 2 can’t-miss converters. They are MiniTool Video Converter (Desktop) and Online Audio Converter (Online).
1. MiniTool Video Converter (Desktop)
MiniTool Video Converter aims to provide users with free and fast video and audio conversion, video compression, video/audio to text conversion, and screen recording. Importantly, it also supports various advanced settings, including adjusting sample rate, frame rate, video and audio encoder, resolution, and bitrate.
MiniTool Video Converter allows you to perform up to 5 tasks simultaneously, greatly improving conversion efficiency. What’s more, it doesn’t have ads, bundles, or watermarks. The next steps are how to compress audio size by changing the sample rate.
Step 1. Download and Install MiniTool Video Converter
Click on the download button below to download and install MiniTool Video Converter. Then, launch it.
MiniTool Video ConverterClick to Download100%Clean & Safe
Step 2. Upload Your Target Audio
Click on the Add Files option to upload your target audio.
Step 3. Lower the Converted Audio’s Sample Rate
Click on the Settings icon to open the output format window. There, switch to the Video tab and select a format. Here, I select MP3. Then, click on the + Create Custom option to enter the Settings window.
In the Settings window, expand the Sample Rate option to choose a lower sample rate. Here, I select 44100. Then, click on the Create button to apply the settings.
Configure MP3_Custom as the output format.
Step 4. Choose a Saving Location and Start the Conversion Process
Expand the Output option at the bottom to choose a saving location. Then, click on the Convert button to start the conversion.
Step 5. Check the Compressed Audio
When the conversion finishes, this audio converter will switch to the Completed tab. There, click on the Play icon or Folder icon to check or locate the converted audio.
The above is about how to lower the sample rate to reduce the audio size. Indeed, the sample rate affects the audio size greatly.
2. Online Audio Converter (Online)
Online Audio Converter is an online audio converter that supports more than 300 audio formats, such as MP3, M4A, OGG, M4R, and FLAC. Also, it allows you to customize the sample rate, audio quality, frequency, channels, and more.
The following is a detailed guide to adjusting the sample rate with the Online Audio Converter
Step 1. Navigate to Online Audio Converter
Go to https://online-audio-converter.com/ to enter Online Audio Converter’s homepage.
Step 2. Import the Target Audio
Click on the Open files option to import the target audio.
Step 3. Adjust the Sample Rate and Begin the Conversion
Expand the Advanced settings dropdown menu. There, expand the Sample rate option to choose a sample rate. Here, I select 44100 Khz. Then, click on the Convert button to begin the conversion process.
Step 4. Save the Converted Audio
Click on the Download button to save the converted audio.
Using Online Audio Converter to adjust the sample rate is efficient. However, there are some vexing ads on the Online Audio Converter’s homepage.
Other Alternative Audio Converters
In addition to these 2 converters, I find another 2 alternative audio converters are also practical for changing the sample rate, including CloudConvert and VEED.IO.
#1. CloudConvert (Online)
CloudConvert is a browser-based video and audio converter. It supports the conversion of audio, videos, e-books, images, and presentations. What’s more, CloudConvert enables you to change sample rate, audio codec, and more. It also allows you to trim the audio file according to your needs.
#2. VEED.IO (Online)
VEED.IO is an online video editor that features its AI power. It supports conversion, subtitles generation, media file editing, video recording, and more. VEED.IO allows users to change the sample rate to reduce the audio file. Also, it supports adjusting the speed and volume of audio.
Final Thoughts
Sample rate affects audio size. This article explains why the sample rate impacts audio size. It also tells you how to adjust the sample rate to reduce the file size with MiniTool Video Converter (Desktop) and Online Audio Converter (Online). Besides, this post lists 2 alternative tools to reduce the sample rate: CloudConvert and VEED.IO.
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