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Junior Varsity
Help needed in resolving mudiness & resonant frequencies
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<blockquote data-quote="Craig Gundry" data-source="post: 214488" data-attributes="member: 14388"><p>After nearly three months of research, experimentation/troubleshooting, and a bunch of expenditure, I have arrived at a brick wall in my quest to get the equipment & environment situation correct for decent voice over recording. I am hoping the audio sages here can point me in the right direction before I spend any more time or money in waste.</p><p></p><p>In short, the problem I am encountering is a general mudiness in recordings and extensive presence of resonant frequencies regardless of microphone, input/recording device, or experiments with the design and location of my booth.</p><p></p><p>The booth I am troubleshooting is a 54” x 63” X 73” PVC cage lined with acoustic blankets and a carpet over hardwood floor. I also constructed five 4” rockwool panels which are temporarily laid against the corner walls in attempt to absorb nearby wall reflections. I’ve conducted a bunch of unsuccessful experiments over the past few weeks including placing the rockwool panels inside the booth, loading up the booth with pillows and extra sound-absorbent stuff, relocating the booth in my garage, taking out all furniture and equipment, microphone placement, etc…All to no avail!</p><p></p><p>Attached below are pics of the booth and recording environment.</p><p></p><p>I originally purchased a Rode NTG-3 shotgun mike in hope of using it for both voice over and video work. The recordings were terrible! By the time I realized an MKH-416 would have been worth an extra $300, B&H would no longer accept a return on the Rode. So I purchased two other mikes to try: Aventone CV-12 & Shure SM7b. The resonance in the CV-12 recordings (regardless of polar pattern) was full-spectrum, off-the-chart! I couldn’t even isolate problem frequencies with surgical EQ. Although the SM7b is much better (when set for flat or performance-boost), the recordings are still muddy with pronounced resonant frequencies scattered throughout the 100-1400 hz range.</p><p></p><p>While experimenting with Audition and iZotope RX 8, I discovered that reverb may be playing a role. Running a de-reverb filter seemed to make the recordings more workable and didn’t need as much aggression with notched EQ to reduce the resonant freqs. Nevertheless, no amount of surgical EQ, de-reverb, or de-noise seems to be successful in salvaging them. Or at least that I’ve been able to accomplish.</p><p></p><p>Following are links to unedited samples of the Rode NTG-3 and Shure SM7b recordings in the booth.</p><p></p><ul> <li data-xf-list-type="ul">Rode NTG-3: <a href="https://cloud.cisadmin.com/index.php/s/XyPxn6nZdLiHMCE/download" target="_blank">https://cloud.cisadmin.com/index.php/s/XyPxn6nZdLiHMCE/download</a></li> <li data-xf-list-type="ul">Shure SM7B: <a href="https://cloud.cisadmin.com/index.php/s/5gCXEjLJN9NnMol" target="_blank">https://cloud.cisadmin.com/index.php/s/5gCXEjLJN9NnMol</a></li> </ul><p>If it’s useful to hear my voice in other recording situations, here’s a few links to some video interviews on YouTube:</p><ul> <li data-xf-list-type="ul">[MEDIA=youtube]LNDqX8-pzyw[/MEDIA]</li> <li data-xf-list-type="ul">[MEDIA=youtube]F1PBoWmI6w8[/MEDIA]</li> </ul><p>I realize a PVC ‘blanket booth’ in a living room isn’t exactly an ideal studio set-up. But unfortunately, that’s what I’m working with under current conditions. I can deal with poor sound isolation by recording late at night. I just need to get the audio quality under control. The recordings are for a personal video series and don’t need to be at pro-level of perfection, but at least a level where poor audio quality doesn’t distract from the viewer’s experience.</p><p></p><p>Any advice in remedying the recording situation or suggestions for successful post-production cleanup is VERY, VERY GREATLY appreciated!!!!</p></blockquote><p></p>
[QUOTE="Craig Gundry, post: 214488, member: 14388"] After nearly three months of research, experimentation/troubleshooting, and a bunch of expenditure, I have arrived at a brick wall in my quest to get the equipment & environment situation correct for decent voice over recording. I am hoping the audio sages here can point me in the right direction before I spend any more time or money in waste. In short, the problem I am encountering is a general mudiness in recordings and extensive presence of resonant frequencies regardless of microphone, input/recording device, or experiments with the design and location of my booth. The booth I am troubleshooting is a 54” x 63” X 73” PVC cage lined with acoustic blankets and a carpet over hardwood floor. I also constructed five 4” rockwool panels which are temporarily laid against the corner walls in attempt to absorb nearby wall reflections. I’ve conducted a bunch of unsuccessful experiments over the past few weeks including placing the rockwool panels inside the booth, loading up the booth with pillows and extra sound-absorbent stuff, relocating the booth in my garage, taking out all furniture and equipment, microphone placement, etc…All to no avail! Attached below are pics of the booth and recording environment. I originally purchased a Rode NTG-3 shotgun mike in hope of using it for both voice over and video work. The recordings were terrible! By the time I realized an MKH-416 would have been worth an extra $300, B&H would no longer accept a return on the Rode. So I purchased two other mikes to try: Aventone CV-12 & Shure SM7b. The resonance in the CV-12 recordings (regardless of polar pattern) was full-spectrum, off-the-chart! I couldn’t even isolate problem frequencies with surgical EQ. Although the SM7b is much better (when set for flat or performance-boost), the recordings are still muddy with pronounced resonant frequencies scattered throughout the 100-1400 hz range. While experimenting with Audition and iZotope RX 8, I discovered that reverb may be playing a role. Running a de-reverb filter seemed to make the recordings more workable and didn’t need as much aggression with notched EQ to reduce the resonant freqs. Nevertheless, no amount of surgical EQ, de-reverb, or de-noise seems to be successful in salvaging them. Or at least that I’ve been able to accomplish. Following are links to unedited samples of the Rode NTG-3 and Shure SM7b recordings in the booth. [LIST] [*]Rode NTG-3: [URL]https://cloud.cisadmin.com/index.php/s/XyPxn6nZdLiHMCE/download[/URL] [*]Shure SM7B: [URL]https://cloud.cisadmin.com/index.php/s/5gCXEjLJN9NnMol[/URL] [/LIST] If it’s useful to hear my voice in other recording situations, here’s a few links to some video interviews on YouTube: [LIST] [*][MEDIA=youtube]LNDqX8-pzyw[/MEDIA] [*][MEDIA=youtube]F1PBoWmI6w8[/MEDIA] [/LIST] I realize a PVC ‘blanket booth’ in a living room isn’t exactly an ideal studio set-up. But unfortunately, that’s what I’m working with under current conditions. I can deal with poor sound isolation by recording late at night. I just need to get the audio quality under control. The recordings are for a personal video series and don’t need to be at pro-level of perfection, but at least a level where poor audio quality doesn’t distract from the viewer’s experience. Any advice in remedying the recording situation or suggestions for successful post-production cleanup is VERY, VERY GREATLY appreciated!!!! [/QUOTE]
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Help needed in resolving mudiness & resonant frequencies
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