Télécharger SPL Graph sur PC

       


Bonne nouvelle! Une application Windows comme SPL Graph est disponible! Télécharger ci-dessous:

Sinon, suivez les instructions ci-dessous pour utiliser SPL Graph sur PC:

SPL Graph Sur iTunes

SPL Graph works by averaging the SPL for a period of time that can vary from 0.1 second to 60 minutes, applying an optional weighting filter, and plotting the sound level, recording the raw audio signal, if recording is turned on.  SPL Graph is an audio Sound Pressure Level (SPL) environmental noise analyzer, real-time frequency analyzer, chart recorder and data logger.  SPL Graph can record up to 24 hours of sound level data, with single second resolution.  The graph starts with a one-minute plot window, and as a minute is recorded, the graph re-scales automatically and adds another minute to show the data collected so far.  As the graph runs, the overall LEQ (average SPL) for the entire time period is computed and displayed on the screen.  You can recall these graphs and bring them up on the screen, and listen to the sounds that were made while the graph was recorded.  Swiping across the graph brings up a cursor that displays the exact dB level and time for any point on the graph.  You can turn on audio recording, so that you have a record of the sounds that were happening while the graph was being stored.  Tap the play button to play back the recorded audio, and you can use the cursor to scrub the audio location on the graph.  You can scroll and scale the graph vertically, in dB, by using standard swipe and pinch gestures.  Double-tap the screen to zoom out to show the entire graph on the screen.  The overall SPL level, or LEQ, is displayed for whatever portion of the test is showing on the graph.  If you exit the app, or are interrupted with a phone call, the graph data will not be lost.  You can use this to figure out exactly what the sound was that caused a peak on the graph, for example.  For sound intervals of 1.0 second to 60 minutes, the optional octave and 1/3 octave logging modules allows storing the spectrum of the sound, for each interval.  You can also save a graph in one of ten files on the iPhone, so that you can recall the graph later.  SPL Graph supports saving graphs directly on your iOS device.  Use this feature to listen to events that you can see on the graph.  SPL Graph will automatically save the graph, and reload it when you next open the program.  The time scale grid changes dynamically, highlighting minutes, ten-minute, and hour lines as as it runs.  And, you can view the data on the 3D plot for a graphical view of frequency over time.  Zoom out to a full 24 hours, or zoom in to a single minute, showing second resolution.  You can also export data in tab-delimited files for XLS import using iCloud.  With the optional octave logging module, you can also record the octave or 1/3 octave band levels.  You can also scroll and expand and contract the time axis using gestures.  To upgrade the app to true professional standards, add our iTestMic, iPrecisionMic, or iAudioInterface2 with an appropriate microphone, and get ANSI or ISO Type 1 or 2 results.  The filters are all ANSI type 1 or better, and include A-weighting, C-weighting, and all octaves band filters from 32 to 16kHz.  Use Dropbox or iTunes Files Sharing to export the results to your computer.  You can also store an image of the screen to your photo roll.  The app works very well with the built-in iOS device microphone.  Recordings can be compressed or uncompressed.