ImTOO Video to Audio Converter: Best Settings for Lossless Audio Output

Extracting lossless audio from video ensures you preserve the original sound quality for editing, archiving, or listening. Below are step-by-step instructions and recommended settings in ImTOO Video to Audio Converter to get truly lossless results (or the highest-quality extraction possible when true lossless isn’t available).

1. Choose the right output format

Preferred (lossless): FLAC — compressed lossless, preserves original audio perfectly and is widely supported.
Alternative (lossless for PCM streams): WAV — uncompressed PCM, exact copy of source audio when the source is PCM. Larger file sizes.
Avoid: MP3, AAC, WMA — these are lossy and will degrade quality.

2. Detect source audio codec and sample parameters

Load your video into ImTOO.
Check the source audio codec, sample rate, bit depth, and channels (often shown in the file info).
Match these parameters in the output to avoid resampling or unnecessary re-encoding.

3. Output profile settings — recommended values

Use a custom profile and set these options:

Format: FLAC (or WAV if you need raw PCM)
Audio codec: FLAC encoder (or PCM for WAV)
Bit depth: Match source (commonly 16-bit or 24-bit). If unknown, choose 24-bit for better headroom.
Sample rate: Match source (44.1 kHz for CD audio, 48 kHz for most video). If forced to choose, select the source rate to avoid resampling.
Channels: Match source (stereo, 5.1, etc.)
Bitrate: For FLAC this is not the same as lossy bitrate; set to “maximum” or use default lossless setting. For WAV, bitrate is determined by sample rate × bit depth × channels.
Normalization: Off — normalization alters dynamic range; skip it for a lossless copy.
Volume adjustment: 0 dB (no change).
Sample format: If available, choose “original” or highest precision (e.g., 24-bit PCM).

4. Advanced options to preserve integrity

Disable filters/effects: Turn off fade, echo, EQ, or any processing.
Use direct audio stream copy (if available): If the source audio is already in a lossless or PCM format that matches your desired output container (e.g., source is PCM and you choose WAV), select “Direct Stream Copy” or “Copy audio” to avoid re-encoding entirely.
Keep metadata: Enable copying tags if you want to preserve track info; this does not affect audio quality.

5. Batch conversion tips

Create one optimized profile for all files with identical source parameters.
For mixed sources, group files by matching sample rate/bit depth to avoid resampling.

6. Verify output quality

Compare the waveform or spectrogram in an audio editor (e.g., Audacity) to ensure no clipping or unexpected changes.
Listen to critical passages on good headphones or monitors. Lossless output should match the original audio exactly.

7. Storage and workflow considerations

File size: WAV files are large (approx. 10 MB/min for 16-bit/44.1 kHz stereo). FLAC reduces size while staying lossless.
Archiving: Use FLAC for storage; convert to WAV only when required by a specific tool or workflow.
Backup: Keep originals until you confirm converted files are intact.

Quick checklist (summary)

Format: FLAC (preferred) or WAV
Match sample rate, bit depth, and channels to source
Disable normalization and effects
Use direct stream copy when possible
Verify with waveform/spectrogram and critical listening

Following these settings in ImTOO Video to Audio Converter will give you the best chance of preserving original audio fidelity during extraction.

ImTOO Video to Audio Converter: Best Settings for Lossless Audio Output