## Line Chart: NMSE vs. Frequency for Different Rooms ### Overview The image is a line chart comparing the Normalized Mean Square Error (NMSE) in decibels (dB) across different frequencies for four different rooms: Room B, VR Lab, Listening Room, and Production Room. The chart displays how the NMSE varies with frequency for each room, providing insights into the acoustic characteristics of each space. ### Components/Axes * **X-axis:** Frequency (Hz), ranging from 30 to 300, with tick marks at approximately 30, 40, 50, 60, 70, 80, 90, 100, 200, and 300. * **Y-axis:** NMSE (dB), ranging from -25 to 0, with tick marks at -25, -20, -15, -10, -5, and 0. * **Legend:** Located in the bottom-right corner, identifying each line by room: * Blue: Room B * Green: VR Lab * Black: Listening Room * Red: Production Room ### Detailed Analysis * **Room B (Blue):** * Trend: Starts at approximately -14 dB at 30 Hz, drops sharply to around -16 dB at 42 Hz, then generally increases with frequency, reaching approximately -6 dB at 300 Hz. * Data Points: * 30 Hz: -14 dB * 42 Hz: -16 dB * 60 Hz: -11 dB * 100 Hz: -9 dB * 200 Hz: -8 dB * 300 Hz: -6 dB * **VR Lab (Green):** * Trend: Starts at approximately -9 dB at 30 Hz, drops to -11 dB at 40 Hz, then increases and stabilizes around -4 dB to -6 dB from 80 Hz to 300 Hz. * Data Points: * 30 Hz: -9 dB * 40 Hz: -11 dB * 60 Hz: -8 dB * 100 Hz: -4 dB * 200 Hz: -4 dB * 300 Hz: -6 dB * **Listening Room (Black):** * Trend: Starts at approximately -8 dB at 30 Hz, drops sharply to -16 dB at 42 Hz, then increases and stabilizes around -6 dB to -8 dB from 80 Hz to 300 Hz. * Data Points: * 30 Hz: -8 dB * 42 Hz: -16 dB * 60 Hz: -10 dB * 100 Hz: -7 dB * 200 Hz: -7 dB * 300 Hz: -6 dB * **Production Room (Red):** * Trend: Starts at approximately -6 dB at 30 Hz, remains relatively stable between -5 dB and -7 dB from 30 Hz to 300 Hz, with some fluctuations. * Data Points: * 30 Hz: -6 dB * 60 Hz: -7 dB * 100 Hz: -6 dB * 200 Hz: -6 dB * 300 Hz: -5 dB ### Key Observations * All rooms show a general trend of increasing NMSE with frequency, especially after the initial drop around 40 Hz. * The Production Room exhibits the most stable NMSE across the frequency range. * Room B and Listening Room show a significant dip in NMSE around 40 Hz. * VR Lab has a relatively higher NMSE at lower frequencies compared to Room B and Listening Room after 40 Hz. ### Interpretation The data suggests that the acoustic characteristics of each room vary significantly, especially at lower frequencies. The Production Room appears to have the most consistent performance across the frequency spectrum, indicating a more controlled acoustic environment. The dips in NMSE for Room B and the Listening Room around 40 Hz could indicate specific resonant frequencies or acoustic anomalies in those spaces. The VR Lab's higher NMSE at lower frequencies might be due to the specific design or equipment within that room. Overall, the chart provides valuable insights into the acoustic performance of each room, which could be used to optimize their design or usage for specific audio-related tasks.

\n ## Line Chart: NMSE vs. Frequency for Different Rooms ### Overview The image presents a line chart comparing the Normalized Mean Squared Error (NMSE) in decibels (dB) across different rooms (Room B, VR Lab, List. Room, and Prod. Room) as a function of frequency, ranging from 30 Hz to 300 Hz. The chart aims to visualize the performance of a system or measurement in each room across the specified frequency spectrum. ### Components/Axes * **X-axis:** Frequency (Hz), ranging from 30 to 300 Hz, with tick marks every 10 Hz. * **Y-axis:** NMSE (dB), ranging from -25 dB to 0 dB, with tick marks every 5 dB. * **Data Series:** * Room B (Blue Line) * VR Lab (Green Line) * List. Room (Black Line) * Prod. Room (Red Line) * **Legend:** Located in the top-right corner of the chart, associating each color with a specific room. ### Detailed Analysis Here's a breakdown of each data series, describing the trend and then extracting approximate data points. * **Room B (Blue Line):** The line generally fluctuates between approximately -5 dB and -15 dB. It starts at around -16 dB at 30 Hz, dips to approximately -18 dB at 40 Hz, rises to around -8 dB at 60 Hz, then fluctuates between -10 dB and -14 dB until 300 Hz, ending at approximately -12 dB. * **VR Lab (Green Line):** This line exhibits a more consistent trend, generally staying between -5 dB and -12 dB. It begins at approximately -10 dB at 30 Hz, rises to around -5 dB at 50 Hz, then fluctuates between -7 dB and -12 dB until 300 Hz, ending at approximately -8 dB. * **List. Room (Black Line):** The black line shows a more erratic pattern, with larger fluctuations. It starts at approximately -6 dB at 30 Hz, dips to around -16 dB at 40 Hz, rises to approximately -4 dB at 80 Hz, then fluctuates between -6 dB and -15 dB until 300 Hz, ending at approximately -5 dB. * **Prod. Room (Red Line):** This line generally stays between -5 dB and 0 dB. It starts at approximately -3 dB at 30 Hz, dips to around -6 dB at 40 Hz, rises to approximately 0 dB at 100 Hz, then fluctuates between -5 dB and -2 dB until 300 Hz, ending at approximately -3 dB. ### Key Observations * **Lowest NMSE:** The Prod. Room consistently exhibits the lowest NMSE values across most of the frequency range, indicating the best performance. * **Highest NMSE:** Room B generally shows the highest NMSE values, suggesting the poorest performance. * **Frequency Dependence:** All rooms show some degree of frequency dependence, with NMSE values changing as frequency increases. * **Peak at 100 Hz:** The Prod. Room shows a distinct peak in NMSE around 100 Hz, reaching 0 dB. * **Initial Dip:** All lines show a dip in NMSE between 30 Hz and 40 Hz. ### Interpretation The chart suggests that the acoustic environment or measurement setup in the Prod. Room is most favorable for the system being evaluated, as indicated by the consistently lower NMSE values. The VR Lab and List. Room show intermediate performance, while Room B exhibits the highest error. The frequency dependence observed in all rooms suggests that the system's performance is affected by the frequency content of the signal. The peak in NMSE at 100 Hz for the Prod. Room could indicate a resonance or other specific acoustic phenomenon at that frequency. The initial dip in NMSE across all rooms might be related to the system's sensitivity at lower frequencies. This data could be used to optimize the system's performance or to identify rooms that are less suitable for certain applications. Further investigation into the acoustic properties of each room could provide insights into the observed differences in NMSE.

## Line Graph: NMSE (dB) vs Frequency Across Different Rooms ### Overview The image is a line graph comparing the Normalized Mean Squared Error (NMSE) in decibels (dB) across four different environments (Room B, VR Lab, List. Room, Prod. Room) as a function of frequency (Hz). The graph spans frequencies from 30 Hz to 300 Hz, with NMSE values ranging from -25 dB to 0 dB. Four distinct lines represent the data for each room, with color-coded legends for clarity. --- ### Components/Axes - **X-axis (Frequency)**: Labeled "Frequency" with ticks at 30, 40, 50, ..., 300 Hz. The scale is linear. - **Y-axis (NMSE)**: Labeled "NMSE (dB)" with ticks at -25, -20, -15, ..., 0 dB. The scale is linear. - **Legend**: Located in the bottom-right corner, mapping colors to rooms: - **Blue**: Room B - **Green**: VR Lab - **Black**: List. Room - **Red**: Prod. Room --- ### Detailed Analysis 1. **Room B (Blue Line)**: - **Trend**: Starts at ~-15 dB at 30 Hz, dips sharply to ~-18 dB at 40 Hz, then fluctuates with minor peaks and troughs. Ends near -5 dB at 300 Hz. - **Key Points**: - Sharp dip at 40 Hz (~-18 dB). - Slight recovery to ~-10 dB at 50 Hz. - Gradual increase to ~-5 dB at 300 Hz. 2. **VR Lab (Green Line)**: - **Trend**: Relatively stable with minor fluctuations. Peaks at ~-3 dB at 100 Hz and ~-2 dB at 200 Hz. Ends near -4 dB at 300 Hz. - **Key Points**: - Smooth curve with no extreme dips. - Slight upward trend toward higher frequencies. 3. **List. Room (Black Line)**: - **Trend**: Starts at ~-10 dB at 30 Hz, drops sharply to ~-18 dB at 40 Hz, then fluctuates with peaks and troughs. Ends near -5 dB at 300 Hz. - **Key Points**: - Sharp dip at 40 Hz (~-18 dB). - Recovery to ~-10 dB at 50 Hz. - Oscillatory behavior with peaks at ~-5 dB (e.g., 70 Hz, 150 Hz). 4. **Prod. Room (Red Line)**: - **Trend**: Most stable line with minimal fluctuations. Peaks at ~-2 dB at 100 Hz and ~-3 dB at 200 Hz. Ends near -4 dB at 300 Hz. - **Key Points**: - Consistent performance with no extreme dips. - Slight upward trend toward higher frequencies. --- ### Key Observations - **Sharp Dips**: Room B and List. Room exhibit significant drops at 40 Hz (~-18 dB), suggesting potential issues or anomalies at this frequency. - **Stability**: Prod. Room shows the most consistent performance, with the least variation across frequencies. - **Peaks**: VR Lab and Prod. Room have minor peaks at 100 Hz and 200 Hz, indicating possible resonance or measurement artifacts. - **Convergence**: All lines converge near -5 dB at 300 Hz, suggesting similar performance at high frequencies. --- ### Interpretation The data highlights differences in NMSE performance across environments. The **Prod. Room** demonstrates the most stable and reliable performance, with minimal fluctuations and no extreme dips. In contrast, **Room B** and **List. Room** show significant variability, particularly at 40 Hz, which may indicate environmental or measurement challenges. The **VR Lab** exhibits moderate stability but with slight upward trends at higher frequencies. These trends could reflect differences in room acoustics, equipment calibration, or experimental conditions. The sharp dips at 40 Hz in Room B and List. Room warrant further investigation to identify root causes, such as structural resonances or sensor limitations. Overall, the graph underscores the importance of environmental factors in NMSE measurements and highlights the Prod. Room as the optimal setting for consistent performance.