Intermittent hum during recording / play back.

This section is now closed.
Forum rules
Audacity 1.3.x is now obsolete. Please use the current Audacity 2.1.x version.

The final version of Audacity for Windows 98/ME is the legacy 2.0.0 version.
Locked
latimer21
Posts: 4
Joined: Wed Jan 11, 2012 11:56 am
Operating System: Please select

Intermittent hum during recording / play back.

Post by latimer21 » Wed Jan 11, 2012 12:06 pm

I have been recording music via the internet and I keep getting short duration hums or buzzes in the recording when I play it back. This hum is not present on the original sound. When using versions 1.2.3 and 1.2.6 I get stutters and not hums. Can anyone help?

Thanks,

Latimer

steve
Site Admin
Posts: 80751
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Intermittent hum during recording / play back.

Post by steve » Wed Jan 11, 2012 6:40 pm

Probably best not to use Audacity 1.2.x as it's very old and is known to often have problems on modern computers.

Could you upload a short sample recording to the Internet and post a link so that we can hear the problem.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

kozikowski
Forum Staff
Posts: 68938
Joined: Thu Aug 02, 2007 5:57 pm
Operating System: macOS 10.13 High Sierra

Re: Intermittent hum during recording / play back.

Post by kozikowski » Wed Jan 11, 2012 9:14 pm

Make sure upgrading to Audacity 1.3 doesn't cure the problem.
The 1.2 versions of Audacity can have serious problems on newer computers.
Koz

latimer21
Posts: 4
Joined: Wed Jan 11, 2012 11:56 am
Operating System: Please select

Re: Intermittent hum during recording / play back.

Post by latimer21 » Fri Jan 13, 2012 7:44 am

steve wrote:Probably best not to use Audacity 1.2.x as it's very old and is known to often have problems on modern computers.

Could you upload a short sample recording to the Internet and post a link so that we can hear the problem.
Thank you for your reply. The hums or buzzes occur when I use 1v1.3 and the stutters when I use v1.2.3 and v1.2.6. Being a novice on the forum, how can I upload a short recording and does this have to be in Audacity file or can it be a wav file?

latimer21
Posts: 4
Joined: Wed Jan 11, 2012 11:56 am
Operating System: Please select

Re: Intermittent hum during recording / play back.

Post by latimer21 » Fri Jan 13, 2012 7:52 am

steve wrote:Probably best not to use Audacity 1.2.x as it's very old and is known to often have problems on modern computers.

Could you upload a short sample recording to the Internet and post a link so that we can hear the problem.
Steve

I think I have worked out how to upload a file, so hopefully here it is as a wav file.
Attachments
Buz sample.wav
A sample of a hum/buz recorded
(820.04 KiB) Downloaded 41 times

steve
Site Admin
Posts: 80751
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Intermittent hum during recording / play back.

Post by steve » Fri Jan 13, 2012 11:29 am

latimer21 wrote: I think I have worked out how to upload a file, so hopefully here it is as a wav file.
Yes there is, thank you.

The "buzz" sounds to me like a very fast "stutter", where a very short section of the audio is repeating, fast enough to sound like a buzz.

For clarity, can you confirm the exact version of Audacity that you used to make this recording. (look in "Help > About Audacity" for the full 3 part version number "1.3.??" )

In both this example, and the stuttering in 1.2.x the problem appears to be that the flow of audio data from your sound card through to the hard drive is getting interrupted.
What specification is your computer?
Do you know what sort of sound card you are using?
What programs do you have running while you are making this recording?

There are some optimisation tips on this page that may fix the problem: http://wiki.audacityteam.org/wiki/Manag ... nd_Drivers
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

latimer21
Posts: 4
Joined: Wed Jan 11, 2012 11:56 am
Operating System: Please select

Re: Intermittent hum during recording / play back.

Post by latimer21 » Fri Jan 13, 2012 6:39 pm

steve wrote:
latimer21 wrote: I think I have worked out how to upload a file, so hopefully here it is as a wav file.
Yes there is, thank you.

The "buzz" sounds to me like a very fast "stutter", where a very short section of the audio is repeating, fast enough to sound like a buzz.

For clarity, can you confirm the exact version of Audacity that you used to make this recording. (look in "Help > About Audacity" for the full 3 part version number "1.3.??" )

In both this example, and the stuttering in 1.2.x the problem appears to be that the flow of audio data from your sound card through to the hard drive is getting interrupted.
What specification is your computer?
Do you know what sort of sound card you are using?
What programs do you have running while you are making this recording?

There are some optimisation tips on this page that may fix the problem: http://wiki.audacityteam.org/wiki/Manag ... nd_Drivers
Steve

The Audacity version is 1.3.14-beta (unicode)
My PC operates on Windows XP and consists of a Pentium(R) 4 CPU 3.00 GHz and 512mb Ram
I generally try not to run any other programme whilst I am recording, there is of course my security software which AVG 2012.
The sound card is C-media Wave device.

I hope this helps.

I will try the optimisation tips to see if that helps.

Cheers.

Locked