13 votes

How do I change the playback speed without changing the tempo?

Play-at-Speed Audacity has a "Play-at-Speed" feature located at Transcription Toolbar. Move the slider to choose a slower or faster speed than normal, then click the green triangle button to ...
user avatar
6 votes
Accepted

How to make all sound be at approximately the same level?

Better is subjective, and taste differs, but a chain of effects might include the following: High pass filter, maybe set at 20Hz. Depends on the material, but if you have a recording done with ...
user avatar
  • 1,254
5 votes

Audacity: calculate exact amplification

If the amplification was linear, and didn't result in clipping, then comparing any given peak value (in Audacity) between the two files will give you the information.
user avatar
  • 1,721
5 votes
Accepted

What is the best WAV encoding and why?

I assume that you export sound in order to import it somewhere else. This process has a lot of details and used to be done in the step called "mastering" in the old recording days. I'm no ...
user avatar
  • 1,254
4 votes

Silence a small section of just one channel in a stereo recording (Audacity)

MountainX, I don't know if you ever got the answer you needed but I just found out how to do it. If you have a stereo recording in Audacity you click on "Audio Track" at the left of the stereo ...
user avatar
4 votes
Accepted

Audacity causing unwanted artifacts for high frequency sounds

You're quite right that it's some sort of nonlinear operation – hard digital clipping in fact. And honestly it's somewhat obvious why this happens: you're superimposing two sine waves, each of ...
user avatar
4 votes
Accepted

Faking depth and stereo separation?

It depends on what you mean by “cleaner” really. Is this a professional or amateur recording? If you just want to improve the recording, then there are many things you can try. EQing to get a better ...
user avatar
  • 2,176
4 votes

How can I eliminate sounds below a certain threshold?

It really depends on the material; are these sounds that you want to remove truly peaking at a lower level than every bit of the speech? How about in loudness or 'energy'? You need to look into the ...
user avatar
  • 2,176
4 votes

why is there a delay when recording my second track ? they dont align

No. You have a systemic delay. When your recording software sends samples to the soundcard, they are buffered in the driver, sent to the card, buffered in the card, digitally filtered for ...
user avatar
4 votes

How to change volume of a .wav file in a mp3gain-like way?

ReplayGain tags aren't standard in WAV files, so you have to alter the PCM data with the required gain. As per my reading of the Replaygain specs, a correctly implemented Replaygain scanner will ...
user avatar
  • 584
3 votes
Accepted

How can I match/adjust two clips together with a smooth transition?

Try using a crossfade between the two tracks. Crossfading is slightly different from a normal fade in/out. Instead of a linear transition, crossfading uses a logarithmic curve to keep the volume ...
user avatar
  • 303
3 votes

How to move/seek long forward/backward using shortcuts in Audacity?

There are Cursor Short Jump Left, Cursor Short Jump Right, Cursor Long Jump Left and Cursor Long Jump Right commands, which are assigned to comma (,) and period (.) keys by default. They can be ...
user avatar
3 votes

Filter Reverb and Echo at the time of recording in Audacity or any other software

Yes, there are ways to try to reduce echo, but they also negatively impact the sound with artifacts. You can use features like gates to try to cut off when someone stops talking directly, but those ...
user avatar
  • 8,091
3 votes

Remove irritating low hum from recording

There are enough patches in the recording with the hum and without the voice to use a noise removal tool -- Audacity has one built in and the LADSPA plugins provide this kind of thing. I'd be shocked ...
user avatar
3 votes

How do I mark points in Audacity?

Add a label track, and find the start of each leitmotif. Place your cursor at the beginning of the area you want, and press ctrl+alt+v or Edit>Paste Text To New Label. This will create a new label, ...
user avatar
3 votes
Accepted

Replicate a specific sound effect?

If I would approach it, I would go and try the following: First of all, FM radio broadcasting has an upper limit of 15 KHz, and lower limit of 30 Hz. So cut all frequencies outside that scope to ...
user avatar
3 votes

Boost peaks but leave troughs unaltered in Audacity

You could try working with an expander, which is the reverse of a compressor and increases the dynamic range.
user avatar
  • 31
3 votes

How can I improve this chain of filters to make a better voice with Audacity

Processing always has the negative side effect of either increasing noise or taking away from the quality. The secret to processing is you want to do as little as possible to achieve what you want, ...
user avatar
3 votes
Accepted

Audacity select multiple ranges at same time for deleting

To do it one marker at a time, without messing up the ones you haven't yet done, start with the last marker & work towards the beginning. This assume that once you've done a cut, you no longer ...
user avatar
  • 7,059
3 votes
Accepted

How can I get rid of the "phase shifter" sound of my voice?

Having listened to mentioned in comments - the effect doesn't come in at the 49s mark, it's there right from the start. It is definitely a phase issue - but I'm ...
user avatar
  • 7,059
3 votes

How to remove Hitler's voice using audacity | Removing a certain typical sound in audacity

If you mean just the dialog, you'd do better starting from the 5.1 audio as a source. The centre channel should be dialog only. If you want to include the music, or if you only have the audio as ...
3 votes

How do you sync two tracks of similar audio?

If you don't start with timecode, or even a 2-pop or clapper, I can't see any other way than lining it up by eye; finding a common beginning… then hoping they stay approximately in sync. I've never ...
user avatar
  • 7,059
2 votes

Audacity records only 1 channel, inspite of being set to stereo

As others have said, this is the expected behavior. Your computer mic input is a stereo mic jack that takes signal from the mono mic on both channels by nature of the connector design. (On a mono 1/...
user avatar
  • 8,091
2 votes

How does audacity play text

No, it is not ideal. It isn't doing anything to the text file other than reading it incorrectly. RAW data is expecting binary data, not text. But text is an encoded as binary data, so the file ...
user avatar
  • 8,091
2 votes
Accepted

Best quality encoding when exporting "8-bit 8kHz Mono WAV" sample in Audacity?

8-bit 8K isn't going to be great quality in any case, but WAV is as good as you can do. Straight uncompressed MS-format (RIFF) WAV is the most compatible format for interchange. There are two senses ...
user avatar
  • 1,721
2 votes

Remove irritating low hum from recording

You choose when to stop, Original file (as downloaded from Vocaroo) First, a cut at 8 kHz... Audio after 8 kHz cut Next, a 70 Hz high-pass... Audio after 8 kHz cut and 70 Hz high-pass And just ...
user avatar
  • 175
2 votes

How to increase recorded audio quality using audacity?

Quality of recorded audio (in the digital realm) is measured by captured frequencies (sample rate) and dynamic accuracy (Bit Depth). Once recorded, changing those wont improve the signal, only ...
user avatar
2 votes

Filter Reverb and Echo at the time of recording in Audacity or any other software

I'd be far more inclined to try fix it at source first. There are several plugins I've tried that attempt to de-verb, but none anywhere near as successfully as just not recording it in the first ...
user avatar
  • 7,059
2 votes

5 loudest and 5 softest points in an audio file

A long-shot, but this might work if you have a similar setup to mine. It works equally well for DVD [I don't have a BluRay] TV, catchup, YouTube, Netflix, VLC, etc etc I use my PC's built-in 7.1 ...
user avatar
  • 7,059
2 votes

Filter Reverb and Echo at the time of recording in Audacity or any other software

See previous discussion here, SPL De-Verb is probably what you're looking for. You can watch a comparison between SPL, iZotope, Zynaptic in this YouTube video.
user avatar
  • 181

Only top scored, non community-wiki answers of a minimum length are eligible