Numark NV and NVII - My NV screens are not displaying wave forms. What should I do?
If your music files have not been analyzed in Serato prior to connecting your NV or NVII, your NV screens may not display the waveforms. There are few reasons this may occur:
- The files have not been analyzed in Serato.
- The file type is not supported by Serato.
- The file is corrupt.
Using the Analyze Files function in Serato helps detect file corruption, builds and saves waveform overviews, and calculates auto-gain and BPM values. This step is necessary to ensure that all of your files are ready to be used with your NV and NVII. The following guide will walk you through how to analyze your files in Serato DJ and what to do if you encounter an error.
- Before you begin
- How to Analyze and Prepare Files for Serato
- Corrupt Files - Everything You Need to Know
- Further Technical Support
Before You Begin
Many issues can be resolved by updating your software. Before you proceed with additional troubleshooting, make sure you're running the latest version of Serato DJ.
How to Analyze and Prepare Files for Serato
- To analyze files in Serato DJ, please run your Serato software in offline mode (with the NV/NVII USB cable disconnected from your hardware).
- Check off both Set Beat Grid and Set Auto BPM prior to analyzing your files. We recommend leaving your Range at None.
- Highlight the song that you wish to analyze.
- You could click the Analyze Files button to start the process or simply drag and drop your highlighted songs onto the Analyze Files button.
- Wait until this has finished analyzing all of your songs. When complete, your Analyze Files button will become un-highlighted.
Note: The auto BPM function will not be applied if the track already contains BPM information. If after analyzing the songs, you know the current BPM information was analyzed incorrectly for a particular track, double click on the BPM tag for the track and delete the BPM value before re-analyzing. To re-analyze these files and calculate an auto BPM or auto gain value, simply drag and drop them onto the Analyze Files button.
If you are unable to complete the analyzing of your files, see Serato's article Troubleshooting freezing and crashing while Analyzing Files for further assistance.
Corrupt Files - Everything You Need to Know
If a corrupt file is detected during the analyze process, Serato will tag the track with a corrupt file icon (pictured right). It is important that ANY corrupt files are removed from the library. Corrupt files can cause Serato to crash even if the file is not currently in use. If you're using an external hard drive or thumb drive, please delete these files from your Serato database. Keep in mind, when using an external hard drive or thumb drive, your files may need to be re-analyzed each time before using your NV.
To delete a song from the Serato library, navigate to the ALL section. Click on the song to select it and use the keyboard shortcut Control + Delete for PC users or Command + Delete for Mac users to delete the song (make sure the Protect Library option in Serato's setup is turned off).
For information on supported Serato DJ file types, click here or read below.
Corrupt File Error Messages in Serato
- This MP3 contains invalid frames.
- This MP3 contains frames which do not conform strictly to the official MP3 specification. The software can not be certain that this file will play back 100% accurately.
- This file contains corrupt frames that may result in audible glitches.
- This file contains two or more contiguous corrupt frames. Since corrupt frames are replaced with silence, this could result in what might sound like an audio glitch.
- This file has been split. You should check the beginning for audio glitches.
- The first MPEG audio frame in this file refers to audio that should be present before it but is not. This is usually the result of incorrect MP3 editing. Since a corrupt frame is replaced with silence and most songs start with silence, the resulting silence might not be noticeable. All the same, listen to the beginning of the song, just to be sure.
- This MP3 contains frames with corrupt data.
- Decoding of an MPEG audio frame failed. This means that the frame contained invalid data. As usual with corrupt frames, this frame will be played as silence.
- This MP3 lost synchronization between the frame index and the frames
- The Serato software is reading an old overview of an MP3 that has been edited in a third party editing program. Re-building the overviews for the affected files usually corrects this error.
- This MP3 is completely invalid and is not playable.
- Self-explanatory. Possible causes are disk bad sectors, file system corruption, wrong file types, wrong file extensions, etc.
- This file contains invalid audio data.
- The software encountered invalid data while looking for audio in this file. This message alerts you to the fact that the file you're trying to play contains corrupt data. This may, or may not, affect playback.
- This MP3 contains no valid frames.
- No audio could be found in this file, which means it is completely unplayable as far as the software is concerned. Please make sure this really is an audio file.
- This WAV contains no valid chunks.
- This WAV file contains no recognizable WAV data. It is quite possible that this might not be a WAV file.
Unsupported File Error Messages in Serato
- This MP3 contains multiple layers.
- While scanning this file, the software found frames belonging to multiple MPEG layers. Serato software does not support MP3s containing frames from multiple layers – some frames may output as silence.
- This file is more than 2 GB in size.
- Self-explanatory. At the moment, Serato software does not support files that are 2 GB in size (or larger).
- This file has data blocks greater than 2 GB in size.
- This file contains chunks of data that are larger than 2 GB. Serato software does not support files that are more than 2 GB in size.
- This file's data is not in PCM format.
- WAV files can contain data in several formats. Serato software only supports WAV files that contain data in the PCM format.
- This file has a sampling rate greater than 48 kHz.
- Serato software does not support sampling rates greater than 48 kHz. If you see this message, the simplest approach is to re-sample the audio at 48 kHz and re-save the file.
- This file uses more than 24 bits per sample
- Serato software supports a maximum of 24 bits per sample of audio data.
Further Technical Support
Whether you are a customer or dealer, if you already own a Numark product, or if you just have pre-sales questions, the Numark technical support team is available to help!
Each product has a dedicated support page on the website where you can find manuals, specifications, software updates, drivers and troubleshooting guides: www.numark.com
Visit the link below to connect with any of the following support options: online community support, phone support, email support.