TyFord Posted February 12 Share Posted February 12 Hi, I'm working on a music project for a client. I am using a friend who is a composer to build tracks. He has an acoustic grand piano and records into PT with a pair of C414 mics. The files I have received from him (below) have some odd ringing, like harmonic distortion. Can you tell me what the cause might be and if these files can be filtered to remove the "fizz?" Thanks, Ty Ford Link to post Share on other sites
cjf Posted February 13 Share Posted February 13 Can you load the file into Audacity to see if it shows anything odd? https://www.audacityteam.org/ My Audio System -Last Updated DEC 2020 Link to post Share on other sites
TyFord Posted February 13 Author Share Posted February 13 I saw some strange waveform artifacts when I zoomed all the way into Pro Tools. That doesn't tell me how it got that way or if here's a way to fix it. Thanks, Ty Ford Link to post Share on other sites
Axiom05 Posted February 13 Share Posted February 13 What is the format of the recording, bit rate? Is it lossy or lossless? If I had to guess, sounds like it is over processed/data compressed. Auralic Aries G2, Ayre QX-5 Twenty, Ayre KX-5 Twenty, Ayre VX-5 Twenty, Revel Ultima Studio2, Iconoclast speaker cables & interconnects, RealTraps acoustic treatments, Sonore opticalModule (X2) Link to post Share on other sites
TyFord Posted February 13 Author Share Posted February 13 24-bit .wav, 48 kHz. Link to post Share on other sites
sandyk Posted February 14 Share Posted February 14 Quote The files I have received from him (below) have some odd ringing, like harmonic distortion. Can you tell me what the cause might be and if these files can be filtered to remove the "fizz?" Thanks, Ty Ford How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file. PROFILE UPDATED 13-11-2020 Link to post Share on other sites
TyFord Posted February 14 Author Share Posted February 14 so, that's a "no." Link to post Share on other sites
yamamoto2002 Posted February 17 Share Posted February 17 It seems it is recorded at 48kHz. 4kHz or above frequency component contains non-musical harsh digital noise: The spectrum pattern is repeated above 4kHz, it is somewhat similar to the aliasing noise when the same digital sample value is repeated 12 times (Fig.3) ... Cutting the signal 4kHz or above (Fig.2) to alleviate this noise. Sound becomes somewhat Lo-Fi ish Delete4kHzOrAboveResult.mp3 Fig.1 Fig.2 Cut 4kHz or above frequency components Fig.3 Downsampled to 4kHz PCM and zero-order-hold upsample to create 48kHz PCM Sunday programmer since 1985 Developer of PlayPcmWin Link to post Share on other sites
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now