ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: [1]   Go Down

Author Topic: Denon DN-300r artifact  (Read 343 times)

Mark Lehigh

  • Newbie
  • *
  • Offline Offline
  • Posts: 4
Denon DN-300r artifact
« on: May 09, 2019, 03:38:28 pm »

Hi.

I am getting an audio artifact or snapping sound in the left channel of 48k WAV recordings.

I attached a JPG of a waveform.

mp3 here:
chiptape.com/dn300r.mp3

Anybody know what it is?

Recorder is Denon DN-300r.
denonpro.com

Source is an amp... TOA a912mk2.
toa.jp

Denon asked some questions, but didn't respond after I answered their questions.

I don't think I can switch to the DN-300r's XLR inputs.
(I don't think my amp has XLR outputs.)

The following troubleshooting eliminated the snapping sound:

1... Record at 44k 16bit instead of 48k 24bit.

2... Record with CD recorder instead of DN-300r.
(Cd recorder is HHB cdr-830... I assume this records 44k, 16-bit.)

2... Recording MP3 instead of WAV.
I'm not sure if this eliminated the snapping sound.

So it seems like the 48k is the problem?

The following troubleshooting didn't eliminate the snapping sound:

4... Turn off auto level.

5... Record to different USB flash drive.

6... Try different source.

7... Switching left / right on RCA splitter cable.

8... Try different RCA cable(s).

9... Try new RCA splitter from Lowes.

10... Try old gray RCA splitter.

11... Record from different mics.

12... Switch top and bottom RCA cables on amp.
(top = aux out
bottom = Bridging input/output)

13... I think there is a partially-cut wire going from amp into speaker connector screws.
I cut off the nicked part of the wire and reattached.

Thanks.
Logged

Mac Kerr

  • Old enough to know better
  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 6397
  • Audio Plumber
Posting Rules
« Reply #1 on: May 09, 2019, 05:45:00 pm »

Hi.

I am getting an audio artifact or snapping sound in the left channel of 48k WAV recordings.

Please go to your profile and change the "Name" field to your real first and last name as required by the posting rules displayed in the header at the top of the section, and in the Site Rules and Suggestions in the Forum Announcements section, and on the registration page when you registered.

Mac
admin
Logged

Mike Caldwell

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1285
  • Covington, Ohio
    • Mike Caldwell Audio Productions
Re: Denon DN-300r artifact
« Reply #2 on: May 12, 2019, 03:25:56 pm »

Did you hear that noise in the sound system at the same time it was being recorded?

It kind of sound like some digital data noise pick up, is there an access point or cell phone next to the recorder.

The first thing to determine is if the noise happening in the system before it even goes to the recorder.

Mark Lehigh

  • Newbie
  • *
  • Offline Offline
  • Posts: 4
Re: Denon DN-300r artifact
« Reply #3 on: May 14, 2019, 01:41:41 pm »

Thanks for your reply.

I don't hear the snapping noise in the speakers.
The speakers are connected to the amp.
Logged

Mike Caldwell

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1285
  • Covington, Ohio
    • Mike Caldwell Audio Productions
Re: Denon DN-300r artifact
« Reply #4 on: May 14, 2019, 07:00:27 pm »

Thanks for your reply.

I don't hear the snapping noise in the speakers.
The speakers are connected to the amp.

Monitor the recording using head phones plugged into the front of recorder and listen for the noise.

Mark Lehigh

  • Newbie
  • *
  • Offline Offline
  • Posts: 4
Re: Denon DN-300r artifact
« Reply #5 on: May 15, 2019, 09:33:10 pm »

Ok, I just listened on headphones while recording.

It sounded good, except sounded like maybe some faint cellphone interference coming through the headphones.

But when I play the recorded file on my computer, the left channel has the snapping sound... It sounds totally different than what came through the headphones while recording.

thx
Logged

Mike Caldwell

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1285
  • Covington, Ohio
    • Mike Caldwell Audio Productions
Re: Denon DN-300r artifact
« Reply #6 on: May 17, 2019, 07:03:40 am »

Ok, I just listened on headphones while recording.

It sounded good, except sounded like maybe some faint cellphone interference coming through the headphones.

But when I play the recorded file on my computer, the left channel has the snapping sound... It sounds totally different than what came through the headphones while recording.

thx


On the input cables at the recorder swap them around, plug the cable going into the left into the right and the right cable into the left.

Make a recording and see if the noise is then on the right channel, if so then the noise is coming into the recorder, if the noise is still on the left then I would say it could be a recorder issue.

On your recent test recording were you recording what should be silence?

Mark Lehigh

  • Newbie
  • *
  • Offline Offline
  • Posts: 4
Re: Denon DN-300r artifact
« Reply #7 on: May 17, 2019, 02:23:09 pm »

Thanks, I sorta tried that, but my source output is a single RCA, so I use an RCA splitter cable.  I tried putting the splitter at the source end and the recorder end.  And I switched cables and splitter ends.  And I tried different cables and a different splitter.  I still got the snapping sound in the left channel.

The recent test recording was not silence.  It was live voice like I normally record.
Logged
Pages: [1]   Go Up
 


Page created in 0.114 seconds with 24 queries.