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Audio Anomaly
I recently purchased a Tascam DR-40 4-Track Handheld Digital Audio Recorder to use as backup audio at the events I cover. I installed a 32GB Class 10 SDHC card, and have gobs of space. I also set it to record at the 24-bit mode,trading off space for quality. I transferred last week’s audio via USB from the Tascam into one of the editing hard drives on my PC system and played back several segments using a number of common audio players (such as Windows Media Player, VLC Media Player, Quicktime Player, etc.), and everything sounded pretty good. However, when I drop any of the three .WAV files into my SVP 12 timeline, the beginning of each segment contains what I only can explain as a half to one second of “white noise”–audio hash! The waveform shows this, too! So I trimmed the beginning of the clip, moved to another PC program, and when I played this clip in Vegas (no changes, mind you), the white noise returned to the beginning of the clip. Not only did this anomaly occur (only in Vegas–not in any of the other players) at the beginning of the clip, but randomly throughout the clip there were several instances of this white noise. I opened Adobe Audition and tried every other PCM .WAV option, but each new audio file I created suffered in the exact same way!! I THEN finally tried the Microsoft ADPCM option to convert the files, and BOOM–they now are fine in Vegas. My question, then, is what did I do wrong initially when I recorded the files (if anything), why does it only seem like Vegas is not playing nicely with the originally-recorded files (and everything else plays them without incident), and finally why does the Microsoft ADPCM converted files option work when none of the PCM options work? Not an audio engineer, I haven’t a clue what has transpired, but I truly am thankful I had enough patience to find this workaround–although I do not believe that a workaround should be needed in the first place. So I hope that my more knowledgeable colleagues and mentors out there can unravel the mystery for me and the rest of us. Thank you in advance, and I really look forward to your guidance and responses!!
Rich Kutnick
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3 Replies
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Rich, I’ve had the same problem a few times. I found that it happens more often with 24bit audio files and in larger projects.
My workaround is to copy the audio files to a different HDD and relink them. Try this. It works.
This bug is VERY annoying and strange. Hope Sony corrects this in SV13.
Hope I was helpful.
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Grzegorz, you saved my day–worked like a champ, and sooooo obvious! I knew that there was an answer to this, even though we both agree that this anomaly should NOT occur! If anyone from Sony is monitoring this forum, please add this bug to the ever-growing list!! I STILL think that SVP is the easiest, most intuitive editing program out there, even despite its quirks! Thanks again, Grzegorz, for your knowledge and insight–THIS FORUM ROCKS!!
Rich Kutnick
VIDEO IMPRESSIONS -
but tell me what’s the mechanism behind this?
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