Search found 6150 matches

by DVDdoug
Wed Jun 16, 2021 9:31 pm
Forum: Windows
Topic: Embedded Subluminals
Replies: 1
Views: 23

Re: Embedded Subluminals

I don't know anything about "subliminal binaural beats" but the MP3 is able to make a file 1/5th or 1/10th the size of the original is by throwing-away sounds that you can't hear. So if you want to preserve something that you can't hear it's best to avoid lossy compression. If I merge the two mp3's ...
by DVDdoug
Wed Jun 16, 2021 7:33 pm
Forum: Windows
Topic: playback volume low
Replies: 3
Views: 31

Re: playback volume low

I will have to re-record the low volume files (that's OK...they are short). Assuming you don't have some kind of "serious problem" that's also causing sound quality problems... No! Just run the Amplify effect to amplify after recording. It's better to record a little low to leave some "headroom" to...
by DVDdoug
Wed Jun 16, 2021 5:23 pm
Forum: Windows
Topic: MP4 files
Replies: 3
Views: 34

Re: MP4 files

You have to select M4A. Then if you wish, you can rename it to MP4 after saving. (M4A and AAC are also MP4.) I have downloaded the ffmpeg-win-2.2.2 Did you RUN ffmpeg-win-2.2.2 to install it? Then when you go to file -> Export -> Export Audio -> Save as type: you should be able to select M4A ( AAC) ...
by DVDdoug
Tue Jun 15, 2021 2:56 pm
Forum: Windows
Topic: 16 & 24 bit files automatically converted to 32 bit float
Replies: 1
Views: 30

Re: 16 & 24 bit files automatically converted to 32 bit float

There's no harm in leaving the floating-point default. The re-sampling (of the sample rate) is probably being done by temporarily converting to floating-point anyway. The results should be audibly perfect in any case, as long as you stay at or above "CD quality". Another option to think about... Whe...
by DVDdoug
Sun Jun 13, 2021 4:38 pm
Forum: Windows
Topic: audio capture from speakers
Replies: 12
Views: 179

Re: audio capture from speakers

You use your laptop's built-in microphone as your Recording Device to record the sound in the room. Turn off Software Playthrough to prevent feedback & echo. I wonder if I can so without a soud card Your computer already has a sound chip which functions like a sound card. ...Most computers now have ...
by DVDdoug
Sun Jun 13, 2021 2:51 am
Forum: macOS
Topic: Sliding Stretch
Replies: 5
Views: 85

Re: Sliding Stretch

Is is possible to convert the files back to the original format (440Hz) instead of overwriting or 'adding' on top of the initial conversion? I basically want a do-over with the original file. You didn't save a copy of the original file? More processing will only make the distortion/artifacts worse....
by DVDdoug
Sun Jun 13, 2021 2:25 am
Forum: Making Music with Audacity
Topic: lower volume under percentage
Replies: 5
Views: 147

Re: lower volume under percentage

There is a dB formula* but perceived loudness is more complicated. Audacity has Loudness Normalization which can be used to match the volume of two or more tracks but it can be tricky because you can end-up pushing the peaks into clipping (distortion). With dialog or music, a file that peaks at 0dB ...
by DVDdoug
Sun Jun 13, 2021 12:48 am
Forum: Windows
Topic: ACX Requirements sound horrible
Replies: 5
Views: 66

Re: ACX Requirements sound horrible

If you follow the Recommended Audiobook Mastering Procedure the audio quality/character should not be affected very little. RMS normalization can push your levels into (potential) clipping (distortion). You can clip your DAC but Audacity itself doesn't clip. If you're not clipping, RMS normalization...
by DVDdoug
Fri Jun 11, 2021 11:02 pm
Forum: Windows
Topic: Recording Levels
Replies: 3
Views: 53

Re: Recording Levels

Are the levels too high or too low? If they are too high and clipping (distorting) that's a problem. If the levels are low, that's probably OK. Digital recording levels are not critical (as long as you avoid clipping). You can boost the volume digitally after recording? If the levels are too high, w...
by DVDdoug
Thu Jun 10, 2021 7:18 pm
Forum: Windows
Topic: Cannot import mp4 file because ffmpeg fails
Replies: 6
Views: 95

Re: Cannot import mp4 file because ffmpeg fails

X:\" is a portable hard drive where I keep lots of audio. Its a toshiba 3TB drive. "Just for fun", try copying the file to your main hard drive. As-of 3.0.0, the new Audacity unified database project format doesn't support FAT-formatted drives. There's a (related?) bug when opening regular audio/vi...