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Audio Settings

Chapter 16: Audio Settings

Introduction

Sound is the soul of your recordings. Whether you're capturing a crucial business meeting, recording a podcast, or saving a family video call, audio quality can make the difference between a professional result and a frustrating, unusable mess. Audio Settings are your toolkit for ensuring every voice comes through crystal clear — no mumbles, no echoes, no "can you hear me now?" moments.

By the end of this chapter, you'll be an audio expert. You'll know how to select the right microphone, adjust volume levels perfectly, avoid common audio pitfalls like Bluetooth latency, and choose the best audio format for your needs.

Chapter Objectives

After reading this chapter, you will be able to:

  • Select and configure your default microphone
  • Adjust microphone gain for optimal volume levels
  • Understand and prevent Bluetooth audio latency issues
  • Choose the right audio format (MP3, WAV, WebM) for your needs
  • Configure system audio capture settings
  • Troubleshoot common audio recording problems
  • Set up audio for different recording scenarios

Why Audio Settings Matter

Imagine this scenario: You've just finished a 2-hour strategic planning meeting. You recorded the entire session so your team could review the decisions later. But when you play it back, you discover that:

  • Your voice is barely audible (microphone too far away)
  • The client on the video call sounds like they're underwater (compression too aggressive)
  • There's a distracting echo (room acoustics + gain too high)
  • Every time you type, it sounds like thunder (sensitive microphone picking up keyboard)

The video looks great, but the audio is so poor that the recording is almost useless. This is why spending time on audio settings pays dividends — good audio is harder to fix in post-production than good video.

Key Reasons to Master Audio Settings:

1. Professional Quality

  • Clear audio makes you sound competent and prepared
  • Poor audio undermines even the best content
  • Clients and colleagues judge quality by sound

2. Comprehension and Accessibility

  • Clear audio is easier to understand
  • Important for transcription accuracy
  • Essential for accessibility (hearing impairments)

3. File Size Management

  • Audio formats vary dramatically in file size
  • Choose the right balance of quality vs. size
  • Save storage space without sacrificing clarity

4. Avoiding Retakes

  • Better to get it right the first time
  • Re-recording meetings is usually impossible
  • Proper settings prevent disasters

Understanding Audio Basics

Before diving into settings, let's cover the fundamentals of digital audio recording.

How Digital Audio Works (Simple Explanation)

Think of audio recording like taking photographs of sound:

Sampling Rate = How many "photos" per second

  • Like camera shutter speed
  • 44.1kHz = 44,100 samples per second
  • 48kHz = 48,000 samples per second
  • Higher = more detail, larger files

Bit Depth = How much detail in each sample

  • Like camera color depth
  • 16-bit = 65,536 possible values
  • 24-bit = 16.7 million possible values
  • Higher = more dynamic range, larger files

Bitrate = Total data per second

  • Sample rate × bit depth × channels
  • Higher = better quality, larger files
  • MP3 uses "lossy" compression to reduce bitrate

Analogy: Recording audio is like painting with dots (pixels). More dots per inch (sample rate) and more colors available (bit depth) = better picture. But it takes more paint (storage space).

Audio Channels

Mono (1 channel):

  • Single audio stream
  • All sound mixed together
  • Smaller files
  • Good for: voice recordings, dictation

Stereo (2 channels):

  • Left and right audio streams
  • Creates spatial sound
  • Larger files (2× mono size)
  • Good for: music, immersive recordings

SeaMeet typically records:

  • Mono for microphone audio
  • Stereo for system audio (if the source is stereo)

The Audio Settings Panel

Let's explore the Audio Settings interface. Open SeaMeet Settings and click on "Audio" in the left sidebar.

┌─────────────────────────────────────────────────────────────┐
│  AUDIO SETTINGS                                             │
├─────────────────────────────────────────────────────────────┤
│                                                             │
│  Microphone Settings                                        │
│  Default microphone: [Microphone (Realtek Audio)  ▼]       │
│                                                             │
│  Input Level Test                                           │
│  ┌──────────────────────────────────────────────────────┐  │
│  │  🎤 Speak to test your microphone                    │  │
│  │                                                      │  │
│  │  ██░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░  │  │
│  │  Quiet              Good              Loud           │  │
│  │                                                      │  │
│  │  Current level: -12 dB (Good)                        │  │
│  └──────────────────────────────────────────────────────┘  │
│                                                             │
│  Microphone Gain                                            │
│  Volume: [━━━━━━━━●━━━━━━━━━━━━] 65%                       │
│  Boost:  [━━●━━━━━━━━━━━━━━━━━━] 20% (for quiet mics)      │
│                                                             │
│  ☑ Automatically adjust microphone gain                     │
│                                                             │
│  System Audio Settings                                      │
│  Default system audio source: [Default Output Device  ▼]   │
│  ☑ Include system audio in recordings                       │
│                                                             │
│  Bluetooth Audio Settings                                   │
│  ☑ Show latency warning when using Bluetooth mics           │
│  ☑ Automatically switch to wired mic if available           │
│                                                             │
│  Audio Format                                               │
│  Recording format: [MP3 ▼]                                 │
│  Quality: [High (192 kbps) ▼]                              │
│  Sample rate: [48 kHz ▼]                                   │
│                                                             │
│                         [Apply] [Test Microphone]           │
└─────────────────────────────────────────────────────────────┘

Now let's go through each section in detail.

Section 1: Microphone Selection

The microphone is your audio input device — it's what captures your voice and converts it into digital data. Choosing the right one makes a huge difference.

Types of Microphones

1. Built-in Microphone (Laptop/Webcam)

  • Pros: Always available, no setup
  • Cons: Poor quality, picks up computer noise, sensitive to position
  • Best for: Emergency use only

2. USB Microphones (Standalone)

  • Examples: Blue Yeti, Audio-Technica AT2020USB+, Rode NT-USB
  • Pros: Excellent quality, easy setup, affordable ($50-200)
  • Cons: Take up desk space, visible on camera
  • Best for: Home office, podcasting, regular recording

3. Headset Microphones

  • Examples: Jabra, Plantronics, gaming headsets
  • Pros: Consistent distance from mouth, hands-free
  • Cons: Variable quality, can be uncomfortable for long sessions
  • Best for: Long calls, gaming, hands-free work

4. Wireless/Bluetooth Microphones

  • Examples: AirPods, Bluetooth headsets
  • Pros: Freedom of movement, no cables
  • Cons: Latency issues, battery dependence, compression artifacts
  • Best for: Short calls, mobile recording (with caveats)

5. Professional XLR Microphones

  • Examples: Shure SM7B, Electro-Voice RE20
  • Pros: Studio quality, extremely durable
  • Cons: Require audio interface ($$), complex setup
  • Best for: Professional studios, broadcast quality

Selecting Your Default Microphone in SeaMeet

Step-by-Step:

  1. Open Audio Settings

    • Click Settings gear icon
    • Click "Audio" in left sidebar

  2. Find "Default microphone" dropdown

    • Shows currently selected device

  3. Click the dropdown

    • Lists all available microphones

  4. Select your preferred microphone

    • Choose the one you'll use most often
    • Usually best to pick a wired USB mic

  5. Click "Apply"

What You'll See in the List:

Microphone (Blue Yeti)
Microphone (Realtek Audio) ← Built-in
Headset Microphone (Jabra)
Microphone (USB Audio Device)
Stereo Mix ← System audio (usually don't pick this)

Tips:

  • Choose a microphone with "Microphone" in the name, not "Stereo Mix"
  • "Default" usually means Windows default (may change unexpectedly)
  • Picking a specific device ensures consistency

Testing Your Microphone

Before recording anything important, always test your microphone!

Using SeaMeet's Test Feature:

  1. In Audio Settings, find the Input Level Test section

  2. Speak normally into your microphone

  3. Watch the level meter:

    • Should bounce in the "Good" zone (middle)
    • Occasional peaks into "Loud" are okay
    • Shouldn't constantly hit max (red)
    • Shouldn't stay in "Quiet" (too low)

  4. Read the current level display:

    • Shows decibels (dB)
    • -12 dB to -6 dB is ideal
    • 0 dB is maximum (will distort)
    • Below -30 dB is too quiet

What the Colors Mean:

  • 🟢 Green (-30 to -12 dB): Good level
  • 🟡 Yellow (-12 to -6 dB): Getting loud, okay occasionally
  • 🔴 Red (-6 to 0 dB): Too loud! Will distort!

Test Phrases to Use:

"Testing one, two, three. This is a microphone test."
"The quick brown fox jumps over the lazy dog."
"Peter Piper picked a peck of pickled peppers."

Things to Listen For:

  • ☐ Clear, not muffled
  • ☐ No echo or reverb
  • ☐ No background noise (fans, air conditioning)
  • ☐ No popping on "P" and "B" sounds
  • ☐ Consistent volume
  • ☐ No crackling or static

Section 2: Microphone Gain (Volume Control)

Gain is the technical term for how much your microphone's signal is amplified. Think of it like the volume knob on a stereo — but for input rather than output.

Understanding Gain vs. Volume

Gain (Input):

  • Controls how loud your microphone signal is
  • Adjusted BEFORE recording
  • Affects signal-to-noise ratio
  • Too high = distortion (clipping)
  • Too low = quiet, noisy recording

Volume (Output):

  • Controls how loud you hear playback
  • Adjusted AFTER recording
  • Doesn't affect recording quality
  • Can always be turned up later

Analogy:

  • Gain is like setting the sensitivity of a camera sensor
  • Volume is like adjusting your screen brightness to view the photo
  • If the photo is blurry (low gain), making your screen brighter won't fix it

Adjusting Microphone Gain

Step-by-Step:

  1. Open Audio Settings

  2. Find "Microphone Gain" section

  3. Adjust the Gain Slider:

    • Speak normally into your microphone
    • Watch the level meter
    • Adjust slider until you consistently hit -12 to -6 dB

  4. Fine-tune with specific scenarios:

    • Speak quietly (whisper): Should still register
    • Speak loudly (excited): Should peak at -6 dB, not 0 dB
    • Normal conversation: Should sit around -18 to -12 dB

Visual Guide:

Too Low:     [●░░░░░░░░░░░░░░░░░░░░] 15%
             Meter barely moves
             Whisper inaudible, normal speech -30 dB

Good:        [━━━━━━━━━●━━━━━━━━━━━] 65%
             Meter bounces in green zone
             Normal speech -18 dB, peaks at -6 dB

Too High:    [██████████████████●░] 95%
             Meter constantly in red
             Normal speech clips at 0 dB, distortion audible

The "Boost" Setting

Some microphones (especially built-in laptop mics) need an extra amplification stage called "boost."

When to Use Boost:

  • Microphone is physically quiet
  • Even at 100% gain, levels are too low
  • Using a microphone far from your mouth
  • Built-in microphones often need +10-20dB boost

When NOT to Use Boost:

  • Microphone is already loud enough
  • You hear hiss or noise when enabling it
  • Using a quality USB microphone (usually not needed)

How to Set:

  1. First try adjusting main gain slider
  2. If still too quiet, enable boost
  3. Start with 10-20% boost
  4. Test and adjust
  5. More boost = more noise, so use minimum needed

Auto-Gain: Friend or Foe?

What is Auto-Gain? Automatically adjusts microphone volume in real-time to keep levels consistent.

Pros:

  • ☐ Good for inconsistent speakers (some loud, some quiet)
  • ☐ Maintains consistent volume throughout recording
  • ☐ Hands-off, no manual adjustment needed

Cons:

  • ☐ Can cause "pumping" effect (volume fluctuates noticeably)
  • ☐ May amplify background noise when you stop speaking
  • ☐ Can create unnatural sounding audio
  • ☐ Not suitable for professional recordings

Recommendations:

  • ✅ Enable auto-gain for:

    • Casual team meetings
    • Quick calls where quality isn't critical
    • When you're moving around a lot

  • ❌ Disable auto-gain for:

    • Professional presentations
    • Podcast recordings
    • Client meetings
    • Any recording where quality matters

How to Toggle:

☑ Automatically adjust microphone gain  ← Check to enable
☐ Automatically adjust microphone gain  ← Uncheck to disable

Section 3: System Audio Capture

System audio is the sound coming FROM your computer — video call voices, notification sounds, videos you play, etc. Capturing this is essential for complete meeting recordings.

What Gets Captured?

Included in System Audio:

  • Voices from Zoom, Teams, Meet calls
  • Video audio from YouTube, training videos
  • Game sounds
  • Music playing on your computer
  • Notification sounds

NOT Included:

  • Sounds from other physical devices
  • Your microphone (that's separate)
  • Audio from your phone
  • External speakers playing physical media

System Audio Source Selection

Options Typically Available:

  1. Default Output Device

    • Captures whatever your computer is playing through
    • Automatically follows your sound settings
    • Recommended for most users

  2. Specific Output Device

    • Speakers (Realtek Audio)
    • Headphones (USB Audio)
    • Monitor Audio (HDMI)
    • Use if you have multiple outputs

  3. Stereo Mix / What U Hear

    • Captures everything playing on computer
    • May not be available on all systems
    • May require enabling in Windows sound settings

How to Set:

Default system audio source: [Default Output Device ▼]

Recommendation: Use "Default Output Device" unless you have a specific reason to capture from a particular output.

System Audio vs. Microphone: The Mix

When you record "Both" (microphone + system audio), SeaMeet creates a mix:

Your voice ───────┐
                  ├──→ Mixed together ──→ Recording
Their voices ─────┘

Why This Matters:

  • You can't separate them after recording
  • If one is too loud/quiet, you can't fix it later
  • Get both levels right before recording

Testing the Mix:

  1. Start a test recording with "Both" selected
  2. Join a test call or play a video
  3. Speak and have the video/call play simultaneously
  4. Stop and playback
  5. Check that:
    • Your voice is clear and present
    • Their voice is audible
    • Neither overpowers the other

Section 4: Bluetooth Audio Settings

Bluetooth microphones and headphones are convenient but come with serious recording caveats. This section is critical to read if you use wireless audio devices.

Understanding Bluetooth Latency

What is Latency? The delay between when sound is produced and when it's captured or played back.

Bluetooth Latency Problem:

You speak: "Hello"
                ↓
Bluetooth transmits (50-200ms delay)
                ↓
SeaMeet receives: "Hello" (half second late)
                ↓
Recording has sync issues

Why Bluetooth Has Latency:

  1. Audio compression (Bluetooth uses lossy codecs)
  2. Wireless transmission time
  3. Device processing time
  4. Different Bluetooth versions have different delays

Typical Bluetooth Latencies:

  • Bluetooth 4.2: 200-300ms (very noticeable)
  • Bluetooth 5.0: 100-200ms (noticeable)
  • Bluetooth 5.2 with LE Audio: 40-80ms (better)
  • Wired connection: <10ms (imperceptible)

The Bluetooth Warning Feature

What It Does: When SeaMeet detects you're using a Bluetooth microphone, it displays a warning about potential latency issues.

Example Warning:

⚠️ BLUETOOTH AUDIO DETECTED

You're using AirPods as your microphone.
Bluetooth audio can cause:
• Delay between your speech and recording (100-300ms)
• Audio sync issues with video
• Reduced audio quality due to compression

Recommendations:
• Use a wired USB microphone for best results
• If you must use Bluetooth, keep it close to your computer
• Test recording before important meetings

[Use Anyway] [Switch to Wired Mic] [Cancel]

How to Enable/Configure:

☑ Show latency warning when using Bluetooth mics
☑ Automatically switch to wired mic if available

Best Practices for Bluetooth Recording

When It's Okay to Use Bluetooth:

  • ✅ Casual internal meetings
  • ✅ When audio quality isn't critical
  • ✅ Short recordings (<15 minutes)
  • ✅ When no wired option available

When to Avoid Bluetooth:

  • ❌ Client presentations
  • ❌ Recordings you'll share publicly
  • ❌ Podcasts or professional content
  • ❌ Long recordings (battery dies)
  • ❌ When precise lip-sync matters

If You Must Use Bluetooth:

  1. Keep Device Close:

    • Within 3 feet (1 meter) of computer
    • Reduces dropouts and improves latency

  2. Ensure Full Battery:

    • Low battery = worse performance
    • Check charge before long recordings

  3. Close Other Bluetooth Devices:

    • Reduce interference
    • Disconnect unused Bluetooth peripherals

  4. Use Best Available Codec:

    • aptX Low Latency (if supported): ~40ms
    • AAC (Apple devices): ~120-150ms
    • SBC (standard): ~200-300ms

  5. Test First:

    • Always do a 30-second test recording
    • Check for sync issues
    • Verify audio quality

  6. Consider Alternatives:

    • Wired USB headset: Better quality, no latency
    • USB microphone + wired headphones: Professional setup
    • Record audio on phone separately, sync in editing

Section 5: Audio Format Settings

The audio format determines how your recording is compressed and saved. This affects file size, compatibility, and quality.

Available Audio Formats in SeaMeet

1. MP3 (MPEG-1 Audio Layer III)

  • Best for: Sharing, web playback, storage efficiency
  • Pros: Small files, universal compatibility, fast processing
  • Cons: Lossy compression (some quality loss)
  • Typical size: 1MB per minute (at 128 kbps)

2. WAV (Waveform Audio File Format)

  • Best for: Professional editing, archival, maximum quality
  • Pros: Uncompressed, no quality loss, industry standard
  • Cons: Large files, slower uploads
  • Typical size: 10MB per minute (CD quality)

3. WebM (Audio-only subset)

  • Best for: Web applications, HTML5 playback
  • Pros: Open format, good compression, modern
  • Cons: Less universal than MP3
  • Typical size: 0.5-1MB per minute (with Opus codec)

4. OGG (Ogg Vorbis)

  • Best for: Open source projects, technical applications
  • Pros: Free format, good compression
  • Cons: Limited device support
  • Typical size: 1-2MB per minute

5. M4A (MPEG-4 Audio)

  • Best for: Apple ecosystem, podcasts
  • Pros: Good quality at low bitrate, iTunes compatible
  • Cons: Variable compatibility outside Apple
  • Typical size: 1MB per minute

Quality Settings

For MP3/M4A (Bitrate Options):

Quality: [Medium (128 kbps) ▼]

Options:
• Low (96 kbps)     — Small files, acceptable quality
• Medium (128 kbps) — Good balance, recommended
• High (192 kbps)   — Better quality, larger files
• Very High (256 kbps) — Excellent quality
• Extreme (320 kbps) — Near-transparent, large files

Recommendation:

  • Voice recordings: 128-192 kbps
  • Music/content: 192-320 kbps
  • Archival: WAV or 320 kbps MP3

For WAV (Bit Depth Options):

Bit depth: [16-bit ▼]

Options:
• 16-bit — CD quality, standard
• 24-bit — Professional, more dynamic range
• 32-bit float — Maximum quality, very large files

Recommendation:

  • Most recordings: 16-bit is fine
  • Professional work: 24-bit
  • 32-bit float only if you're doing heavy audio processing

Sample Rate Settings

Sample rate: [48 kHz ▼]

Options:
• 44.1 kHz — CD quality, standard for music
• 48 kHz — Professional video standard, recommended
• 96 kHz — High-resolution, overkill for most uses

Recommendation:

  • Use 48 kHz for video recordings (matches video standard)
  • 44.1 kHz is fine for audio-only
  • Higher rates = larger files with minimal audible benefit

Format Selection Guide

Scenario 1: Quick Team Meeting Notes

Format: MP3
Quality: Medium (128 kbps)
Sample rate: 48 kHz
Why: Small files, easy to share, quality sufficient for voice

Scenario 2: Client Presentation Recording

Format: WAV
Bit depth: 16-bit
Sample rate: 48 kHz
Why: Maximum quality, professional archive

Scenario 3: Podcast Recording

Format: MP3
Quality: High (192 kbps)
Sample rate: 44.1 kHz
Why: Good quality, manageable size, standard for podcasts

Scenario 4: Web Upload/Streaming

Format: WebM (Opus codec)
Quality: Medium
Sample rate: 48 kHz
Why: Optimized for web, small size, good quality

Section 6: Advanced Audio Settings

Noise Suppression

What It Does: Uses software algorithms to remove background noise (fans, air conditioning, keyboard typing).

Settings Typically Include:

☑ Enable noise suppression
Level: [Medium ▼]

Levels:
• Light — Removes obvious noise only
• Medium — Balanced noise removal (recommended)
• Aggressive — Removes more noise but may affect voice

When to Use:

  • ✅ Noisy environments
  • ✅ Laptop fans running
  • ✅ Mechanical keyboard typing
  • ✅ Air conditioning hum

Caution:

  • Aggressive suppression can make voices sound robotic
  • May remove wanted ambient sound
  • Test before important recordings

Echo Cancellation

What It Does: Prevents echo when your microphone picks up sound from your speakers.

How It Works:

  1. Computer plays sound from call
  2. Microphone might pick up that sound from speakers
  3. Without cancellation: Other person hears themselves echo
  4. With cancellation: Software removes the echoed sound

Settings:

☑ Enable echo cancellation
Strength: [Normal ▼]

When to Use:

  • ✅ Using speakers instead of headphones
  • ✅ In conference rooms with speakers
  • ❌ Not needed with headphones/headset

Note: Echo cancellation can slightly reduce audio quality. Use headphones when possible instead.

Automatic Gain Control (AGC)

Already covered in Section 2, but worth noting advanced options:

☑ Enable AGC
Attack time: [Fast ▼]  — How quickly it responds to loud sounds
Release time: [Slow ▼] — How quickly it returns to normal
Max gain: [+20 dB ▼]   — Maximum amplification allowed

Fine-Tuning:

  • Attack time: Fast = responds quickly to sudden loud sounds
  • Release time: Slow = smooth transitions, avoids pumping
  • Max gain: Limits how much quiet sounds get boosted (prevents noise amplification)

Section 7: Audio Troubleshooting

Problem 1: Microphone Not Detected

Symptoms:

  • Microphone doesn't appear in dropdown list
  • "No microphone found" error
  • Test shows no input

Solutions:

  1. Check Physical Connection:

    • Ensure USB cable is firmly plugged in
    • Try different USB port
    • Check if microphone has power indicator

  2. Windows Sound Settings:

    • Right-click speaker icon in taskbar → Open Sound settings
    • Click "Sound Control Panel" (on right side)
    • Go to "Recording" tab
    • See if microphone appears
    • If appears but disabled: Right-click → Enable
    • If appears but not default: Right-click → Set as Default Device

  3. Update Drivers:

    • Device Manager → Audio inputs and outputs
    • Find your microphone
    • Right-click → Update driver
    • Or uninstall and restart (Windows will reinstall)

  4. macOS Permissions:

    • System Preferences → Security & Privacy → Privacy
    • Click Microphone on left
    • Ensure SeaMeet is checked

  5. Restart SeaMeet:

    • Close completely and reopen
    • Sometimes requires full computer restart

Problem 2: Recording Too Quiet

Symptoms:

  • Meter barely moves
  • Playback requires max volume to hear
  • Transcription fails or is inaccurate

Solutions:

  1. Increase Gain:

    • Audio Settings → Microphone Gain slider
    • Increase to 70-80%

  2. Enable Boost:

    • Turn on "Boost" option
    • Set to 10-20%

  3. Get Closer to Microphone:

    • Ideal distance: 6-12 inches (15-30 cm)
    • Too far = quiet and picks up room noise
    • Too close = pops and distortion

  4. Check Windows Levels:

    • Sound Control Panel → Recording
    • Double-click your microphone
    • Levels tab → Increase to 80-100%

  5. Check Mute Button:

    • Many mics have physical mute buttons
    • Some have software mute in their control panel

Problem 3: Recording Too Loud/Distorted

Symptoms:

  • Meter constantly in red
  • Audio sounds crackly or blown out
  • Peaks at maximum level

Solutions:

  1. Decrease Gain:

    • Audio Settings → Reduce gain to 40-60%

  2. Disable Boost:

    • Turn off boost if enabled

  3. Move Away from Microphone:

    • Increase distance to 12-18 inches
    • Use a pop filter to reduce plosives

  4. Speak Softer:

    • Adjust your speaking volume
    • Normal conversational level is best

  5. Check for Clipping in Windows:

    • Sound Control Panel → Recording → Properties
    • Levels tab → Ensure not at 100% with boost

Problem 4: Background Noise/Hiss

Symptoms:

  • Constant hum or hiss
  • Fan noise, keyboard clicks
  • Room echo

Solutions:

For Mechanical Noise:

  1. Enable Noise Suppression (Audio Settings)
  2. Set to Medium or Aggressive
  3. Move microphone away from computer fans
  4. Use a directional microphone

For Keyboard Clicks:

  1. Use push-to-talk feature (if available)
  2. Move keyboard away from microphone
  3. Use mechanical keyboard dampeners
  4. Place microphone on boom arm above keyboard

For Room Echo:

  1. Add soft furnishings (curtains, carpet, cushions)
  2. Record in smaller room
  3. Use acoustic panels
  4. Get closer to microphone (reduces room sound)

For Electronic Hiss:

  1. Lower microphone gain (reduces noise floor)
  2. Get closer to mic (improves signal-to-noise ratio)
  3. Use a higher quality microphone
  4. Check cable connections

Problem 5: System Audio Not Recording

Symptoms:

  • Other people's voices not in recording
  • Can hear them during call but not in playback
  • Only your voice recorded

Solutions:

  1. Check Recording Mode:

    • Ensure you're recording "System Audio" or "Both"
    • Not just "Microphone"

  2. Check System Audio Source:

    • Audio Settings → Default system audio source
    • Ensure it's set to correct output

  3. Windows Stereo Mix:

    • Some systems need "Stereo Mix" enabled
    • Sound Control Panel → Recording
    • Right-click in blank area → Show Disabled Devices
    • Right-click Stereo Mix → Enable
    • Set as default for SeaMeet

  4. macOS Screen Recording Permission:

    • System Preferences → Security & Privacy → Privacy
    • Screen Recording
    • Ensure SeaMeet is checked
    • Restart SeaMeet after enabling

  5. Check Call Audio:

    • Ensure call audio is playing through computer
    • Not through phone or different device
    • Test by playing a YouTube video while recording

Problem 6: Audio/Video Sync Issues

Symptoms:

  • Lips move but sound comes later
  • Audio sounds delayed
  • Especially bad with Bluetooth

Solutions:

  1. Use Wired Microphone:

    • Switch from Bluetooth to USB or wired headset
    • Eliminates wireless latency

  2. Restart Computer:

    • Clears audio buffer issues
    • Resets sound drivers

  3. Check Bluetooth Latency:

    • If using Bluetooth, that's likely the cause
    • Follow Bluetooth best practices from Section 4

  4. Adjust Buffer Size (Advanced):

    • Some versions allow buffer adjustment
    • Larger buffer = more latency but less glitching
    • Smaller buffer = less latency but may glitch

  5. Post-Production Fix:

    • If already recorded with sync issues:
    • Import to video editor (DaVinci Resolve, Premiere)
    • Adjust audio track timing manually

Section 8: Recording Scenario Configurations

Scenario 1: Professional Podcast Recording

Goal: Maximum quality, archival standard

Settings:

Microphone: USB condenser mic (Blue Yeti, AT2020)
Gain: 65% (peaks at -6 dB)
Boost: Off
Auto-gain: Off
Format: WAV (24-bit, 48 kHz)
Noise suppression: Light or Off
Echo cancellation: Off
System audio: Off (unless doing interviews)
Bluetooth: Never

Physical Setup:

  • Microphone 6-8 inches from mouth
  • Pop filter in front of mic
  • Quiet room with soft furnishings
  • Headphones to monitor (no speakers)

Scenario 2: Daily Team Stand-up Meetings

Goal: Good quality, efficient storage, quick sharing

Settings:

Microphone: Headset or built-in (convenience over quality)
Gain: 70%
Boost: 10% (if using laptop mic)
Auto-gain: On (inconsistent speakers)
Format: MP3 (192 kbps)
Sample rate: 48 kHz
Noise suppression: Medium
Echo cancellation: On (using speakers)
System audio: On (capture team voices)
Bluetooth: Only if necessary, test first

Physical Setup:

  • Laptop on desk, normal distance
  • Headset preferred, speakers okay with echo cancellation
  • Don't worry about minor background noise

Scenario 3: Client Presentation Recording

Goal: Professional quality, reliable capture, backup safety

Settings:

Microphone: Quality USB mic or headset
Gain: Test and set to -12 dB peaks
Boost: Off
Auto-gain: Off
Format: WAV (16-bit) for primary, MP3 backup
Sample rate: 48 kHz
Noise suppression: Light
Echo cancellation: Off (use headphones)
System audio: On (capture client audio)
Bluetooth: Never (too risky)

Physical Setup:

  • Dedicated quiet space
  • USB microphone on desk
  • Headphones to hear client clearly
  • Test recording 5 minutes before call
  • Have backup audio recorder running (phone, second app)

Scenario 4: Gaming/Tutorial Recording

Goal: Balance of voice clarity and game audio

Settings:

Microphone: Headset mic or dedicated USB
Gain: 60-70%
Boost: Off
Auto-gain: Off (prevents volume pumping during quiet game moments)
Format: MP3 (192 kbps) or M4A
Sample rate: 48 kHz
Noise suppression: Medium (keyboard clicks)
Echo cancellation: Off (wearing headphones)
System audio: On (game audio)
Bluetooth: Never (latency ruins gameplay)

Physical Setup:

  • Headset with good isolation
  • Mechanical keyboard dampeners or quiet keyboard
  • Microphone positioned away from keyboard

Summary

Congratulations! You're now an audio recording expert. Here's what you've mastered:

✅ Microphone selection — Choose the right device for your needs and situation

✅ Gain control — Adjust volume levels for perfect clarity without distortion

✅ System audio capture — Record both your voice and computer audio seamlessly

✅ Bluetooth management — Understand latency issues and when to avoid wireless

✅ Format selection — Balance quality vs. file size with MP3, WAV, and WebM

✅ Advanced features — Use noise suppression, echo cancellation, and AGC effectively

✅ Troubleshooting — Solve common audio problems quickly

Quick Reference: Recommended Settings

For Most Users (Balanced):

Microphone: USB headset or dedicated mic
Gain: 65-70%
Boost: 10% only if needed
Auto-gain: Off for quality, On for convenience
Format: MP3 (192 kbps, 48 kHz)
Noise suppression: Medium
System audio: On
Bluetooth: Avoid for important recordings

For Professional Use (Maximum Quality):

Microphone: Quality USB condenser mic
Gain: Set to peak at -12 dB
Boost: Off
Auto-gain: Off
Format: WAV (16-bit, 48 kHz)
Noise suppression: Light or Off
Echo cancellation: Off (use headphones)
Bluetooth: Never

What's Next?

Audio is only half the story — now let's perfect your video recordings in Chapter 17: Video Settings. We'll cover resolution, frame rates, recording modes, and how to capture your screen with professional quality!

Chapter Checklist

Before moving on, make sure you can:

  • Select your default microphone in SeaMeet
  • Test microphone levels and interpret the meter
  • Adjust gain to achieve -12 to -6 dB peaks
  • Understand when to use auto-gain vs. manual control
  • Enable system audio capture for meeting recordings
  • Explain why Bluetooth causes latency issues
  • Choose the right audio format for different scenarios
  • Troubleshoot quiet, loud, or noisy recordings
  • Configure audio for both casual and professional recording

Audio Mastered! 🎙️ Your recordings now sound as good as they look.

Published:

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