المقالات · Articles
أدلة عملية عن الصوت وتحويل الصيغ وتجهيز التسجيلات · Practical guides on audio, formats and voice recordings
In English
How to Convert WAV to MP3 for Free, Without Uploading Your FilesA step-by-step guide to converting WAV to MP3 in your browser: how to choose a bitrate, keep good quality, and understand what changes in the file.What Is Sample Rate? 16 vs 24 vs 44.1 vs 48 kHz ExplainedSample rate explained in plain language: what 16, 24, 44.1 and 48 kHz mean, which one to choose for speech, music or video, and what happens when you convert.WAV vs MP3 vs FLAC vs OGG vs M4A: Which Audio Format Should You Choose?A practical comparison of the most common audio formats: file size, quality, compatibility and the best choice for recording, editing, sharing and archiving.How to Batch Convert Many Audio Files at Once and Download Them as a ZIPConvert dozens of audio files in one go: apply the same format, bitrate and sample rate to all of them, then download everything in a single ZIP file.Preparing Voice Recordings for Data Projects: Typical Specs and a ChecklistCommon requirements for voice-recording and speech-data projects: format, sample rate, mono or stereo, silence, levels and file naming, with a delivery checklist.Why You Should Not Upload Private Recordings to Online ConvertersHow browser-based audio conversion keeps your files on your device, what happens when a converter uploads them to a server, and how to verify it yourself.A Checklist to Verify Recording Quality Before You DeliverA practical pre-delivery checklist for voice recordings: format, sample rate, channels, level, noise, silence, clipping and duplicates, plus how to check them in bulk.What Is Audio Clipping, and How to Avoid It in Your RecordingsClipping flattens the loudest parts of a recording and cannot be properly repaired. Learn how to recognize it, why it happens, and the recording levels that prevent it.How to Record Clean Audio With Your Phone: A Practical GuideSeven simple habits that make phone recordings clear and usable: location, distance, settings, handling noise and a quick test before you start.Mono vs Stereo: Which Should You Use for Voice Recordings?Mono or stereo? For single-voice recordings, mono is usually the right choice. Here is what each means, what it does to file size, and how to convert safely.Bit Depth Explained: 16-bit vs 24-bit vs 32-bit FloatWhat bit depth really changes in a recording, how much file size it adds, and which one to choose for speech, music and project delivery.MP3 Bitrate Explained: CBR vs VBR and What Quality to ChooseUnderstand what bitrate means for MP3 files, the difference between constant and variable bitrate, and which settings suit speech and music.How to Convert M4A to MP3 (iPhone Voice Memos and More)Convert M4A recordings from iPhone Voice Memos and other apps to MP3 for free in your browser, with the right bitrate and without uploading the file.How to Convert MP3 to WAV, and When You ShouldWhy people convert MP3 to WAV, what it does and does not change, how big the files get, and how to do it for free in your browser.How to Reduce the Size of an Audio File Without Ruining ItPractical ways to make audio files smaller: choose the right format, lower the bitrate, use mono, reduce the sample rate and trim silence, with real numbers.Noise Floor and Signal-to-Noise Ratio: What They Mean for Your RecordingsWhat the noise floor and SNR are, how to measure them from a recording, what numbers are good for speech, and how to improve them.Why Recordings Need Silence at the Start and End (and How Much)Why voice-recording projects ask for leading and trailing silence, how much is typical, what real silence is, and how to add or trim it.OGG vs MP3: Which Format Should You Choose?A clear comparison of OGG and MP3: quality at the same size, compatibility, licensing, and when each one makes sense.How to Extract Audio From a Video (MP4 to MP3 or WAV) in Your BrowserPull the audio track out of an MP4, MOV or WebM video and save it as MP3 or WAV for free, without uploading the video anywhere.MP4 vs MKV vs WebM vs MOV: Video Formats ExplainedWhat video container formats are, how MP4, MKV, WebM and MOV differ, why a container is not a codec, and which to choose.